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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4,476 matching records

Chemical reference

ISOBUTYL ACETATE

ICSC 0494 · CAS 110-19-0

Formula: C6H12O2/CH3COOCH2CH(CH3)2

2-Methylpropyl acetate; 2-Methyl-1-propyl acetate; Acetic acid, 2-methylpropyl ester; beta-Methylpropyl ethanoate

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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HSE chemical reference

isobutyl acrylate

CAS 106-63-8 · GB MCL 607-115-00-0 · EC 203-417-8

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

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HSE chemical reference

isobutyl but-3-enoate

CAS 24342-03-8 · GB MCL 604-033-00-7 · EC 401-170-2

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

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Chemical reference

ISOBUTYL CHLORIDE

ICSC 0286 · CAS 513-36-0

Formula: C4H9Cl/(CH3)2CHCH2Cl

1-Chloro-2-methylpropane

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

ISOBUTYL CHLOROFORMATE

ICSC 1594 · CAS 543-27-1

Formula: C5H9ClO2/(CH3)2CHCH2OCOCl

Isobutyl chlorocarbonate; 2-Methylpropyl chloroformate; Formic acid, chloro-, isobutyl ester; Carbonochloridic acid, 2-methylpropyl 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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HSE chemical reference

isobutyl methacrylate

CAS 97-86-9 · GB MCL 607-113-00-X · EC 202-613-0

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

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Chemical reference

ISOBUTYL NITRITE

ICSC 1651 · CAS 542-56-3

Formula: C4H9NO2/(CH3)2CHCH2NO2

Nitrous acid, 2-methylpropyl ester; Nitrous acid, isobutyl 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

ISOBUTYLAMINE

ICSC 1253 · CAS 78-81-9

Formula: C4H11N/(CH3)2CHCH2NH2

2-Methylpropylamine; 2-Methyl-1-propanamine; 1-Amino-2-methylpropane

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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HSE chemical reference

isobutylidene-(2-(2-isopropyl-4,4-dimethyloxazolidine- 3-yl)-1,1-dimethylethyl)amine

CAS 148348-13-4 · GB MCL 612-213-00-1 · EC 419-850-2

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

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Chemical reference

ISOBUTYLIDENEDIUREA

ICSC 1279 · CAS 6104-30-9

Formula: C6H14N4O2

1,1-Diureidoisobutane; N,N''-(2-methylpropylidene)bisurea; Isobutylenediurea; IBDU

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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HSE chemical reference

isobutylisopropyldimethoxysilane

CAS 111439-76-0 · GB MCL 014-009-00-2 · EC 402-580-4

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

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Chemical reference

ISOBUTYRALDEHYDE

ICSC 0902 · CAS 78-84-2

Formula: C4H8O/(CH3)2CHCHO

2-Methyl-1-propanal; Isobutanal

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

ISOBUTYRIC ACID

ICSC 0903 · CAS 79-31-2

Formula: C4H8O2/(CH3)2CHCOOH

2-Methylpropanoic acid; Dimethylacetic acid; Propionic acid, 2-methyl-

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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HSE chemical reference

isobutyryl chloride

CAS 79-30-1 · GB MCL 607-140-00-7 · EC 201-194-1

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

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Chemical reference

ISODECYL ALCOHOL (MIXED ISOMERS)

ICSC 0495 · CAS 25339-17-7

Formula: C10H21OH

Isodecanol (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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HSE chemical reference

isodrin; (1α,4α,4aβ, 5β,8β,8aβ)-1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro-1,4:5,8-dimethanonaphthalene

CAS 465-73-6 · GB MCL 602-050-00-4 · EC 207-366-2

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

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HSE chemical reference

isofenphos (ISO); O-ethyl O-2-isopropoxycarbonylphenyl-isopropylphosphoramidothioate

CAS 25311-71-1 · GB MCL 015-129-00-8 · EC 246-814-1

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

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Chemical reference

ISOFLURANE

ICSC 1435 · CAS 26675-46-7

Formula: C3H2ClF5O

Ether, 1-chloro-2,2,2-trifluoroethyl difluoromethyl; 2-Chloro-2-(difluoromethoxy)-1,1,1-trifluoroethane

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

ISOHEPTANE

ICSC 0658 · CAS 591-76-4

Formula: C7H16/CH3CH(CH3)(CH2)3CH3

2-Methylhexane

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

ISOOCTYL ACRYLATE

ICSC 1743 · CAS 29590-42-9

Formula: C11H20O2

2-Propenoic acid, isooctyl ester; Acrylic acid, isooctyl 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

ISOOCTYL ALCOHOL (MIXED ISOMERS)

ICSC 0497 · CAS 26952-21-6

Formula: C8H18O/C7H15CH2OH

Isooctanol (mixed isomers); Methylheptyl alcohol (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

ISOPENTANE

ICSC 1153 · CAS 78-78-4

Formula: C5H12/(CH3)2-CH-CH2-CH3

Ethyl dimethyl methane; 2-Methylbutane; Isoamyl 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

ISOPHORONE

ICSC 0169 · CAS 78-59-1

Formula: C9H14O

1,1,3-Trimethyl-3-cyclohexene-5-one; 3,5,5-Trimethylcyclohex-2-enone; Isoacetophorone

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

ISOPHORONE DIAMINE

ICSC 0498 · CAS 2855-13-2

Formula: C10H22N2

1-Amino-3-aminomethyl-3,5,5-trimethylcyclohexane; 3-Aminomethyl-3,5,5-trimethylcyclohexylamine

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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