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.

Technical informationSources and further reading

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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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1,699 matching records · Clear search

Chemical reference

1,3-DICHLOROBENZENE

ICSC 1095 · CAS 541-73-1

Formula: C6H4Cl2

m-Dichlorobenzene; m-Phenylene dichloride

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3-DICHLOROPROPANE

ICSC 0724 · CAS 142-28-9

Formula: C3H6Cl2/CH2ClCH2CH2Cl

Reference entry from an ILO / WHO International Chemical Safety Card. The card defines the chemical identity and the scope of its safety information. Check the supplier safety data sheet for the actual product or formulation.

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3-DICHLOROPROPENE (MIXED ISOMERS)

ICSC 0995 · CAS 542-75-6

Formula: C3H4Cl2

1,3-Dichloropropylene; Dichloropropene; 3-Chloroallyl chloride; DCP

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3-DIMETHYLUREA

ICSC 1745 · CAS 96-31-1

Formula: (CH3NH)2CO/C3H8N20

N,N'-Dimethylurea; sym-Dimethylurea; N,N'-Dimethylharnstoff

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3-DINITROBENZENE

ICSC 0691 · CAS 99-65-0

Formula: C6H4N2O4/C6H4(NO2)2

1,3-Dinitrobenzol; m-Dinitrobenzene; 1,3-DNB

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3-DIPHENYLGUANIDINE

ICSC 0467 · CAS 102-06-7

Formula: C13H13N3

Diphenylguanidine; DPG; N,N-Diphenylguanidine; sym-Diphenylguanidine

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3-PENTADIENE

ICSC 1722 · CAS 504-60-9

Formula: CH2(CH)3CH3

Penta-1,3-diene; 1-Methylbutadiene; Piperylene

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3-PROPANE SULTONE

ICSC 1524 · CAS 1120-71-4

Formula: C3H6O3S

1,2-Oxathiolane-2,2-dioxide; 3-Hydroxy-1-propanesulphonic acid sultone; 1-Propanesulfonic acid, 3-hydroxy-gamma-sultone

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3,5-TRICHLOROBENZENE

ICSC 0344 · CAS 108-70-3

Formula: C6H3Cl3

sym-Trichlorobenzene

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,3,5-TRIMETHYLBENZENE

ICSC 1155 · CAS 108-67-8

Formula: C9H12

Mesitylene

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-BENZENEDIAMINE DIHYDROCHLORIDE

ICSC 0386 · CAS 624-18-0

Formula: C6H8N2.2HCl/C6H4(NH2)2.2HCl

1,4-Phenylenediamine dihydrochloride; 1,4-Diaminobenzene dihydrochloride; 4-Aminoaniline dihydrochloride; p-Phenylenediamine dihydrochloride

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-BUTANEDIOL

ICSC 1104 · CAS 110-63-4

Formula: C4H10O2/HO(CH2)4OH

1,4-Butylene glycol; 1,4-Dihydroxybutane; 1,4-Tetramethylene glycol; Tetramethylene 1,4-diol

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-BUTANEDIOL DIGLYCIDYL ETHER

ICSC 0110 · CAS 2425-79-8

Formula: C10H18O4

1,4-Butane diglycidyl ether; 1,4-Bis (2,3-epoxypropoxy) butane

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-DICHLORO-2-NITROBENZENE

ICSC 1618 · CAS 89-61-2

Formula: C6H3Cl2NO2/Cl2C6H3NO2

2,5-Dichloronitrobenzene; 1-Nitro-2,5-dichlorobenzene; Nitro-p-dichlorobenzene

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-DICHLOROBENZENE

ICSC 0037 · CAS 106-46-7

Formula: C6H4Cl2

p-Dichlorobenzene; PDCB

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-DIMETHOXYBENZENE

ICSC 1297 · CAS 150-78-7

Formula: C8H10O2

Benzene, 1,4-dimetoxy-; Hydroquinone dimethyl ether; p-Methoxyanisole

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-DINITROBENZENE

ICSC 0692 · CAS 100-25-4

Formula: C6H4(NO2)2/C6H4N2O4

1,4-Dinitrobenzol; p-Dinitrobenzene; 1,4-DNB

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-DIOXANE

ICSC 0041 · CAS 123-91-1

Formula: C4H8O2

1,4-Diethylene dioxide; Dioxane; para-Dioxane

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,4-NAPHTHOQUINONE

ICSC 1547 · CAS 130-15-4

Formula: C10H6O2

1,4-Dihydro-1,4-naphthalenedione; 1,4-Naphthalenedione; 1,4-Dihydro-1,4-diketonaphthalene

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,5-NAPHTHALENEDIAMINE

ICSC 0668 · CAS 2243-62-1

Formula: C10H10N2/C10H6(NH2)2

1,5-Diaminonaphthalene; 1,5-Naphthylenediamine

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,5-NAPHTHALENEDIOL

ICSC 1604 · CAS 83-56-7

Formula: C10H8O2/C10H6(OH)2

1,5-Dihydroxynaphthalene; Naphthalene-1,5-diol

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,6-HEXANEDIOL

ICSC 0491 · CAS 629-11-8

Formula: C6H14O2/HO(CH2)6OH

1,6-Dihydroxyhexane; Hexamethylene glycol

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

1,7-OCTADIENE

ICSC 0606 · CAS 3710-30-3

Formula: C8H14

Reference entry from an ILO / WHO International Chemical Safety Card. The card defines the chemical identity and the scope of its safety information. Check the supplier safety data sheet for the actual product or formulation.

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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Chemical reference

2-(2-(2-METHOXYETHOXY)ETHOXY)ETHANOL

ICSC 1291 · CAS 112-35-6

Formula: C7H16O4/CH3(OCH2CH)3OH

Triethylene glycol monomethyl ether; Methoxytriglycol; TGME

ILO / WHO chemical safety card

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.

ILO / WHO chemical safety card

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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.

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