Why does CAS 17804-35-2 appear in more than one EU cosmetic annex?

A substance identified by CAS 17804-35-2 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 17804-35-2?

Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 17804-35-2 to screen it directly, then review every linked annex record and supplier document.

CAS 1 record

CAS 17804-35-2

Q: How do I use CAS 17804-35-2 for compliance screening?

Cross-reference CAS 17804-35-2 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 17804-35-2 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 17804-35-2

CAS 17804-35-2PubChem CID 28780

Benomyl

Benomyl is a member of the class of benzimidazoles that is the methyl ester of [1-(butylcarbamoyl)-1H-benzimidazol-2-yl]carbamic acid. A foliar fungicide used to control a wide range of Ascomycetes and Fungi Imperfecti in a wide range of crops. It has a role as an acaricide, an anthelminthic drug, a tubulin modulator, a microtubule-destabilising agent and an antifungal agrochemical. It is a member of benzimidazoles, a carbamate ester, an aromatic amide, a benzimidazole fungicide and a benzimidazolylcarbamate fungicide. — ChEBI

IUPAC name: methyl N-[1-(butylcarbamoyl)benzimidazol-2-yl]carbamate

Molecular formula: C14H18N4O3
Molecular weight: 290.32 g/mol
Exact mass: 290.13789045 Da
XLogP3: 2.1
Topological polar surface area: 85.3 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 4
Covalent units: 1
Defined stereocentres: 0

Also known as

BenlateFundazolUzgenFungochromAgrocitBenlate 50Benomyl-ImexFungicide D-1991

16 more reported names

ArbortrineFundasolMethyl 1-(butylcarbamoyl)-2-benzimidazolecarbamateKribenomylDu Pont 1991Tersan 1991Benlate 50 WBenosanBenomyl 50WChinoin-fundazolNS 02 (fungicide)BenexFungicide 1991Dupont 1991Benlate 50WFibenzol

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:3015
ChEMBL:CHEMBL327919
EPA DTXSID:DTXSID5023900
PubMed:36842454
PubMed:36471152
PubMed:35435491
PubMed:33930522
PubMed:27784618
PubMed:25714994
PubMed:25543211
PubMed:25530041
PubMed:25324206
PubMed:25257666
PubMed:23988235
PubMed:22096322

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 17804-35-2

1 total

Annex

Entry

1035

Benomyl (ISO)

241-775-7

CMR

How CAS 17804-35-2 is used on this site

CAS 17804-35-2 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 17804-35-2 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 17804-35-2 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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