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

N-ETHYLANILINE

ICSC 1385 · CAS 103-69-5

Formula: C8H11N

N-Ethylbenzenamine; Anilinoethane; N-Ethylphenylamine

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

N-ETHYLMORPHOLINE

ICSC 0480 · CAS 100-74-3

Formula: C6H13NO

4-Ethylmorpholine

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

n-HEPTANE

ICSC 0657 · CAS 142-82-5

Formula: C7H16/CH3(CH2)5CH3

Heptane

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

n-HEPTANETHIOL

ICSC 1619 · CAS 1639-09-4

Formula: C7H16S/CH3(CH2)6SH

n-Heptylthiol; n-Thioheptyl alcohol; 1-Mercaptoheptane; Heptyl mercaptan

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

n-HEPTANOIC ACID

ICSC 1179 · CAS 111-14-8

Formula: CH3(CH2)5COOH/C7H14O2

Enanthic acid; n-Heptylic acid; n-Heptoic acid

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

n-HEXANE

ICSC 0279 · CAS 110-54-3

Formula: C6H14

Hexane; Hexyl hydride

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

n-HEXANETHIOL

ICSC 1523 · CAS 111-31-9

Formula: C6H14S/CH3(CH2)5SH

1-Mercaptohexane; 1-Hexylthiol; Hexyl mercaptan

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

n-HEXYL ACRYLATE

ICSC 1288 · CAS 2499-95-8

Formula: C9H16O2/CH2CHCOO(CH2)5CH3

Acrylic acid, hexyl ester; 2-Propenoic acid, hexyl ester; Hexyl 2-propenoate

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

N-ISOPROPYL-N'-PHENYL-p-PHENYLENEDIAMINE

ICSC 1108 · CAS 101-72-4

Formula: C15H18N2

4-(Isopropylamino)diphenylamine; N-(1-Methylethyl)-N'-phenyl-1,4-benzenediamine; 4-Anilino-N-isopropylaniline

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

N-ISOPROPYLANILINE

ICSC 0909 · CAS 768-52-5

Formula: C6H5NHCH(CH3)2

N-Phenylisopropylamine; N-(1-Methylethyl) benzenamine

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

N-METHYL DIETHANOLAMINE

ICSC 1600 · CAS 105-59-9

Formula: C5H13O2N/CH3N(C2H4OH)2

2,2`-(Methylimino)bis-ethanol; Diethanolmethylamine; Bis(2-hydroxyethyl)methylamine

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

N-METHYL-2-PYRROLIDONE

ICSC 0513 · CAS 872-50-4

Formula: C5H9NO

1-Methyl-2-pyrrolidinone; 1-Methyl-2-pyrrolidone; N-Methylpyrrolidone; NMP

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

N-METHYLANILINE

ICSC 0921 · CAS 100-61-8

Formula: C7H9N/C6H5NH(CH3)

N-Methylbenzenamine; Monomethylaniline; N-Methylphenylamine

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

N-METHYLETHANOLAMINE

ICSC 1336 · CAS 109-83-1

Formula: C3H9NO/CH3NHCH2CH2OH

2-Methylaminoethanol; Methylethylolamine; Monomethylethanolamine; (2-Hydroxyethyl)methylamine

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

N-METHYLFORMAMIDE

ICSC 1087 · CAS 123-39-7

Formula: C2H5NO

Methylformamide; Monomethylformamide; Formylmethylamine

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

N-METHYLOLACRYLAMIDE

ICSC 1637 · CAS 924-42-5

Formula: C4H7NO2

N-(Hydroxymethyl)acrylamide; N-(Hydroxymethyl)-2-propenamide; Monomethylolacrylamide; N-Methanolacrylamide

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

N-NITROSODIMETHYLAMINE

ICSC 0525 · CAS 62-75-9

Formula: C2H6N2O/(CH3)2NN=O

Dimethylnitrosamine; N-Methyl-N-nitrosomethylamine; DMN

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

N-NITROSODIPHENYLAMINE

ICSC 0526 · CAS 86-30-6

Formula: C12H10N2O

Diphenylnitrosamine; N-Nitroso-N-phenyl benzenamine; N-nitroso-N-phenylaniline; Nitrous diphenylamide

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

n-OCTYL MERCAPTAN

ICSC 1493 · CAS 111-88-6

Formula: C8H18S/CH2SH(CH2)6CH3

1-Octanethiol; 1-Mercaptooctane; 1-Octylthiol

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

n-PENTANE

ICSC 0534 · CAS 109-66-0

Formula: C5H12/CH3(CH2)3CH3

Amyl hydride

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

N-PHENYL-1-NAPHTHYLAMINE

ICSC 1113 · CAS 90-30-2

Formula: C16H13N/C10H7NHC6H5

N-(1-Naphthyl)aniline; N-Phenyl-alpha-naphthylamine

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

N-PHENYL-1,4-BENZENEDIAMINE

ICSC 1446 · CAS 101-54-2

Formula: C12H12N2/C6H5NHC6H4NH2

4-Aminodiphenylamine; N-(4-Aminophenyl)aniline; N-Phenyl-p-phenylenediamine

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

n-PROPYL ACETATE

ICSC 0940 · CAS 109-60-4

Formula: C5H10O2/CH3COOCH2CH2CH3

1-Acetoxypropane; 1-Propyl acetate; Acetic acid, n-propyl 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

n-PROPYL CHLOROFORMATE

ICSC 1595 · CAS 109-61-5

Formula: C4H7ClO2/CH3(CH2)2OCOCl

Propyl chloroformate; Propyl chlorocarbonate; Formic acid, chloro-, propyl ester; Carbonochloridic acid, propyl 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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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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