Why does CAS 330-55-2 appear in more than one EU cosmetic annex?

A substance identified by CAS 330-55-2 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts — for example, restricted under Annex III with specific conditions, while also appearing in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

How do I check if my formula contains a substance with CAS 330-55-2?

Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 330-55-2 to screen it directly, then review every linked annex record and supplier document.

CAS 1 record

CAS 330-55-2

Q: How do I use CAS 330-55-2 for compliance screening?

Cross-reference CAS 330-55-2 against your raw material specification sheets and CoA documents. When it appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met. All annex entries sharing this CAS number are listed on this page.

CAS 330-55-2 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 330-55-2

CAS 330-55-2PubChem CID 9502

Linuron

Linuron is a member of the class of phenylureas that is N-methyl urea substituted by a methoxy group at position 1 and a 3,4-dichlorophenyl group at position 3. It has a role as a herbicide, an agrochemical, a xenobiotic and an environmental contaminant. It is a member of phenylureas and a dichlorobenzene. It is functionally related to a N-methyl urea. — ChEBI

IUPAC name: 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea

Molecular formula: C9H10Cl2N2O2
Molecular weight: 249.09 g/mol
Exact mass: 248.0119330 Da
XLogP3: 3.2
Topological polar surface area: 41.6 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

AfalonMethoxydiuronCephalonAphalonLinurexLoroxAfalon inuronHerbicide 326

16 more reported names

GarnitanLinoroxRotalinSarclexSinuronLinexDu Pont 326Linex 4LMaluraneProfalonLaroksSoilcidLorexN'-(3,4-Dichlorophenyl)-N-methoxy-N-methylureaCertroli-LinDupont herbicide 326

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:6482
ChEMBL:CHEMBL448213
EPA DTXSID:DTXSID2024163
PubMed:38040841
PubMed:36410587
PubMed:35307500
PubMed:34383603
PubMed:33932781
PubMed:33925709
PubMed:33380213
PubMed:33049310
PubMed:32712134
PubMed:30661753
PubMed:29573710
PubMed:29162470

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 330-55-2

1 total

Annex

Entry

1059

Linuron (ISO)

206-356-5

CMR

How CAS 330-55-2 is used on this site

CAS 330-55-2 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 330-55-2 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.

Frequently asked questions

A substance identified by CAS 330-55-2 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

The INCI Checker accepts ingredient names, CAS numbers and EC numbers. Check this CAS number directly, then verify the result against supplier specification sheets and every linked annex condition.

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