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Chemical identity and waste assessment

Chemical waste disposal library

A source-linked index of chemical identities, with guidance on the information needed to classify and route chemical waste.

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4,476 reference records · 8 detailed guides

This index brings together chemical identities from the ILO / WHO International Chemical Safety Cards and the HSE GB mandatory classification and labelling list. Use the names, identifiers and available formulae to compare a product label, safety data sheet or waste inventory with the source record. Separate source entries may describe different forms or concentrations of the same substance. A match confirms only the source identity; it does not establish the composition of the waste, collection availability or a suitable treatment route. HSE identity information contains Crown copyright material reproduced under the Open Government Licence v3.0.

The detailed guides explain properties and waste-assessment points for particular chemicals. A chemical name or CAS number does not, on its own, establish a List of Waste code, packaging requirement, transport classification or receiving-facility acceptance.

Using chemical identity in a waste assessment

Identity is one part of the waste description. Concentration, process history, contamination and container condition can change the assessment even when the original product is known.

Identity: product name, CAS or EC number and the supplier safety data sheet.
Waste status: unused stock, spent process material, mixture or contaminated packaging.
Quantity and condition: amount, concentration, container sizes and container condition.
Process history: how the waste arose, including known additions, contaminants or any available analysis.

Source references and waste guidance

These sources cover chemical identity, safety data sheets and waste classification. Each has its own scope; none of them confirms that a particular waste load will be accepted by a receiving facility.

Chemical waste guides

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2,777 matching records · Clear search

HSE chemical reference

tetrasodium 4-amino-3,6-bis(5-[4-chloro-6-(2-hydroxyethylamino)-1,3,5-triazin-2-ylamino]-2-sulfonatophenylazo)-5-hydroxynaphthalene- 2,7-disulfonate

CAS 85665-98-1 · GB MCL 611-068-00-1 · EC 400-690-7

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

tetrasodium 4-amino-5-hydroxy-6-(4-(2-(2-(sulfonatooxy)ethylsulfonyl)ethylcarbamoyl)phenylazo)-3-(4-(2-(sulfonatooxy)ethylsulfonyl) phenylazo)naphthalene-2,7-disulfonate

CAS 116889-78-2 · GB MCL 611-015-00-2 · EC 404-320-5

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

tetrasodium 5-[4-chloro-6-(N-ethyl-anilino)- 1,3,5-triazin-2-ylamino]-4-hydroxy-3-(1,5- disulfonatonaphthalen-2-ylazo)-naphthalene- 2,7-disulfonate

CAS 130201-57-9 · GB MCL 611-066-00-0 · EC 411-540-5

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

tetrasodium 5-benzamido-3-(5-(4-fluoro-6- (1-sulphonato-2-naphthylamino)-1,3,5-triazin- 2-ylamino)-2-sulphonatophenylazo)-4- hydroxynaphthalene-2,7- disulphonate

CAS 85665-97-0 · GB MCL 016-042-00-8 · EC 400-790-0

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

tetrasodium dihydrogen 1,1''-dihydroxy-8,8''-[p-phenylbis(imino-{6-[4-(2-aminoethyl)piperazin-1-yl]}-1,3,5-triazine-4,2-diyl-imino)]bis(2,2'-azonaphthalene-1',3,6-trisulfonate)

CAS 172277-97-3 · GB MCL 607-457-00-0 · EC 420-350-1

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thallium thiocyanate

CAS 3535-84-0 · GB MCL 615-031-00-0 · EC 222-571-7

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thiabendazole (ISO); 2-(thiazol-4-yl)benzimidazole

CAS 148-79-8 · GB MCL 613-054-00-0 · EC 205-725-8

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thiacloprid (ISO); (Z)-3-(6-chloro-3-pyridylmethyl)-1,3-thiazolidin-2- ylidenecyanamide; {(2Z)-3-[(6-chloropyridin- 3-yl)methyl]-1,3-thiazolidin-2-ylidene}cyanamide

CAS 111988-49-9 · GB MCL 613-325-00-3 · EC —

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thiamethoxam (ISO); 3-(2-chloro-thiazol-5-ylmethyl)-5-methyl[1,3,5]oxadiazinan-4-ylidene-N-nitroamine

CAS 153719-23-4 · GB MCL 613-267-00-9 · EC 428-650-4

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thiazafluron (ISO); 1,3-dimethyl-1-(5-trifluoromethyl-1,3,4- thiadiazol-2-yl)urea

CAS 25366-23-8 · GB MCL 616-021-00-9 · EC 246-901-4

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thifensulfuron-methyl (ISO); methyl 3-(4-methoxy-6- methyl-1,3,5-triazin-2-ylcarbamoylsulfamoyl)thiophene-2- carboxylate

CAS 79277-27-3 · GB MCL 016-096-00-2 · EC —

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thiobencarb (ISO); S-4-chlorobenzyl diethylthiocarbamate

CAS 28249-77-6 · GB MCL 006-063-00-0 · EC 248-924-5

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thiocarbonyl chloride

CAS 463-71-8 · GB MCL 607-201-00-8 · EC 207-341-6

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thiofanox (ISO); 3,3-dimethyl-1-(methylthio)butanone-O-(Nmethylcarbamoyl) oxime

CAS 39196-18-4 · GB MCL 006-064-00-6 · EC 254-346-4

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thionazin (ISO); O,O-diethyl O-pyrazin-2-yl phosphorothioate;

CAS 297-97-2 · GB MCL 015-112-00-5 · EC 206-049-6

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thiophanate-methyl (ISO); dimethyl (1,2-phenylenedicarbamothioyl)biscarbamate; dimethyl 4,4′-(o-phenylene) bis(3-thioallophanate)

CAS 23564-05-8 · GB MCL 006-069-00-3 · EC 245-740-7

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thioquinox(ISO); 2-thio-1,3-dithiolo(4,5,b)quinoxaline

CAS 93-75-4 · GB MCL 613-019-00-X · EC 202-272-8

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

thymol

CAS 89-83-8 · GB MCL 604-032-00-1 · EC 201-944-8

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

tin(II) methanesulphonate

CAS 53408-94-9 · GB MCL 050-018-00-8 · EC 401-640-7

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

tolclofos-methyl (ISO); O-(2,6-dichloro-p-tolyl) O,O-dimethyl thiophosphate

CAS 57018-04-9 · GB MCL 015-113-00-0 · EC 260-515-3

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

toluene-2,4-diammonium sulphate; 4-methyl-m-phenylenediamine sulfate

CAS 65321-67-7 · GB MCL 612-126-00-9 · EC 265-697-8

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

toluene-4-sulphonohydrazide

CAS 1576-35-8 · GB MCL 607-759-00-2 · EC 216-407-3

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

tralkoxydim (ISO); 2-(N- ethoxypropanimidoyl)- 3-hydroxy-5-mesitylcyclohex-2-en-1-one

CAS 87820-88-0 · GB MCL 606-146-00-7 · EC —

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

HSE chemical reference

trans-(4S,6S)-5,6-dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-ol, 7,7-dioxide

CAS 147086-81-5 · GB MCL 613-220-00-2 · EC 417-290-3

Reference entry from the HSE GB mandatory classification and labelling list. Use the listed chemical name and identifiers to compare with the product label and supplier safety data sheet. The reference identifies the substance; it does not classify a waste stream.

HSE: GB chemical identity source

Identity reference only. The source helps identify the substance; it does not establish the composition or classification of a waste stream, or whether it will be accepted for treatment.

Reference notes and technical facts

Check the product label and supplier safety data sheet for the substance identity, concentration and formulation.
Waste assessment also depends on quantity, container condition, process history, mixing and contamination.

HSE: GB chemical identity source

Published by Chemical Waste Disposal. Sources checked 12 September 2026. Editorial policy.

If you spot an error in this library, please contact us so we can check the entry against its source.

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The appropriate route for chemical waste depends on the material, concentration, condition, quantity and any contamination. The reference information in this library helps with identification, but it does not confirm that a particular waste will be accepted.