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

DIMETHYL SULFATE

ICSC 0148 · CAS 77-78-1

Formula: C2H6O4S/(CH3O)2SO2

Sulfuric acid dimethyl ester; Dimethyl monosulfate; DMS

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

DIMETHYL SULPHOXIDE

ICSC 0459 · CAS 67-68-5

Formula: C2H6OS/(CH3)2SO

Methyl sulphoxide; DMSO

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

DIMETHYL TEREPHTHALATE

ICSC 0262 · CAS 120-61-6

Formula: C6H4(COOCH3)2/C10H10O4

Dimethyl p-phthalate; Dimethyl 1,4-benzenedicarboxylate; DMT

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

DIMETHYLAMINE

ICSC 0260 · CAS 124-40-3

Formula: (CH3)2NH/C2H7N

Methanamine, N-methyl; DMA

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

DIMETHYLAMINE (aqueous solution)

ICSC 1485 · CAS 124-40-3

Formula: (CH3)2NH/C2H7N

Methanamine, N-methyl (aqueous solution); DMA (aqueous solution)

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

DIMETHYLDICHLOROSILANE

ICSC 0870 · CAS 75-78-5

Formula: C2H6Cl2Si/(CH3)2SiCl2

Chlorodimethylsilane

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

DIMETHYLDIOCTADECYLAMMONIUM CHLORIDE

ICSC 1296 · CAS 107-64-2

Formula: C38H80NCl

Distearyldimethylammonium chloride; Dimethyldistearylammonium chloride; 1-Octadecane ammonium, N,N-dimethyl-N-octadecyl chloride; DODMAC

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

DIMETHYLSULPHIDE

ICSC 0878 · CAS 75-18-3

Formula: C2H6S/(CH3)2S

Thiobismethane; Methylsulphide

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

DINITOLMIDE

ICSC 1552 · CAS 148-01-6

Formula: C8H7N3O5/(NO2)2C6H2(CH3)CONH2

2-Methyl-3,5-dinitrobenzamide; 3,5-Dinitro-2-methylbenzamide

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

DINITRO-o-CRESOL

ICSC 0462 · CAS 534-52-1

Formula: C7H6N2O5/CH3C6H2OH(NO2)2

4,6-Dinitro-ortho-cresol; 2-Methyl-4,6-dinitrophenol; DNOC; 2,4-Dinitro-ortho-cresol

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

DINITROBENZENE (mixed isomers)

ICSC 0725 · CAS 25154-54-5

Formula: C6H4(NO2)2/C6H4N2O4

Benzene, dinitro; DNB; Dinitrobenzol (mixed isomers)

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

DINITROTOLUENE (MIXED ISOMERS)

ICSC 0465 · CAS 25321-14-6

Formula: C7H6N2O4/C6H3(CH3)(NO2)2

DNT (mixed isomers); Methyl dinitrobenzene (mixed isomers); Dinitrotoluol (mixed isomers)

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

DINOCAP (ISOMER MIXTURE)

ICSC 0881 · CAS 39300-45-3

Formula: C18H24N2O6

2,4-Dinitro-6-(2-octyl)phenyl crotonate; 2-Butenoic acid, 2(or 4)-isooctyl-4,6(or 2,6)dinitrophenyl ester; 2,6(or 2,4)-Dinitro-4(or 6)octylphenyl crotonates in which octyl is a mixture of 1-methylheptyl, 1-ethylhexyl and 1-propylpentyl groups; DPC

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.

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Chemical reference

DINOSEB

ICSC 0149 · CAS 88-85-7

Formula: C10H12N2O5

2,4-Dinitro-6-sec-butylphenol; 2-sec-Butyl-4,6-dinitrophenol; 2-(1-Methylpropyl)-4,6-dinitrophenol; 2,4-Dinitro-6-(1-methylpropyl)phenol

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

DINOSEB ACETATE

ICSC 0882 · CAS 2813-95-8

Formula: C12H14N2O6

2-sec-Butyl-4,6-dinitrophenyl acetate; 2-(1-Methylpropyl)-4,6-dinitrophenyl acetate (ester); DNBPA

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

DIOCTYL ADIPATE

ICSC 1292 · CAS 103-23-1

Formula: C22H42O4

Bis(2-ethylhexyl)hexanedioate; Bis(2-ethylhexyl)adipate; Di-(2-ethylhexyl)adipate; Adipic acid, bis(2-ethylhexyl)ester

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

DIOXATHION (ISOMER MIXTURE)

ICSC 0883 · CAS 78-34-2

Formula: C12H26O6P2S4

S,S'-(1,4-Dioxane-2,3-diyl) O,O,O',O'-tetraethyl-bis-(phosphorodithioate)

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

DIPHACINONE

ICSC 1757 · CAS 82-66-6

Formula: C23H16O3

2-(Diphenylacetyl)-1H-indene-1,3(2H)-dione; 2-(Diphenylacetyl)indan-1,3-dione

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

DIPHENAMID

ICSC 0763 · CAS 957-51-7

Formula: C16H17NO

2,2-Diphenyl-N,N-dimethylacetamide; N,N-Dimethyldiphenylacetamide

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

DIPHENYL ETHER

ICSC 0791 · CAS 101-84-8

Formula: C12H10O/C6H5OC6H5

Diphenyl oxide; Phenoxybenzene; 1,1'-Oxybis(benzene); Phenyl ether

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

DIPHENYLAMINE

ICSC 0466 · CAS 122-39-4

Formula: C12H11N/C6H5NHC6H5

N-Phenylaniline; Anilinobenzene; N,N-Diphenylamine; N-Phenylbenzamine

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

DIPHENYLETHER, OCTABROMO DERIVATIVE

ICSC 1667 · CAS 32536-52-0

Formula: C12H2Br8O/C6HBr4-O-C6HBr4

OctaBDE; Octa-BDE; DPBDE; Octabromodiphenyl Ether; 1,1'-Oxybisoctabromo benzene; Octabromodiphenyl oxide

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

DIPHENYLOL PROPANE DIGLYCIDYL ETHER

ICSC 0151 · CAS 1675-54-3

Formula: C21H24O4/C2H3OCH2OC6H3C3H6C6H5OCH2C2H3O

2,2-bis(4-(2,3-Epoxypropoxy)phenyl) propane; Bisphenol A diglycidyl ether

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

DIPHOSGENE

ICSC 1630 · CAS 503-38-8

Formula: ClCOOCCl3

Formic acid, trichloro-methyl ester; Trichloromethyl chloroformate

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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