Why does CAS 35575-96-3 appear in more than one EU cosmetic annex?

A substance identified by CAS 35575-96-3 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.

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Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 35575-96-3 to screen it directly, then review every linked annex record and supplier document.

CAS 1 record

CAS 35575-96-3

Q: How do I use CAS 35575-96-3 for compliance screening?

Cross-reference CAS 35575-96-3 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 35575-96-3 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 35575-96-3

CAS 35575-96-3PubChem CID 71482

Azamethiphos

Azamethiphos is an organochlorine insecticide, an organothiophosphate insecticide, an organic thiophosphate and an organochlorine acaricide. It has a role as an agrochemical and an EC 3.1.1.7 (acetylcholinesterase) inhibitor. It is functionally related to an oxazolo[4,5-b]pyridin-2(3H)-one. — ChEBI

IUPAC name: 6-chloro-3-(dimethoxyphosphorylsulfanylmethyl)-[1,3]oxazolo[4,5-b]pyridin-2-one

Molecular formula: C9H10ClN2O5PS
Molecular weight: 324.68 g/mol
Exact mass: 323.9736573 Da
XLogP3: 1.0
Topological polar surface area: 103.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 7
Covalent units: 1
Defined stereocentres: 0

Also known as

CGA 18809OMS No 1825CGA-18809S-6-Chloro-2,3-dihydro-2-oxo-1,3-oxazolo(4,5-b)pyridin-3-ylmethyl O,O-dimethyl phosphorothioateOMS-NO-18256-Chloro-3-dimethoxyphosphinoylthiomethyl-1,3-oxazolo(4,5-b)pyridin-2(3H)-oneS-((6-Chloro-2-oxooxazolo(4,5-b)pyridin-3(2H)-yl)methyl) O,O-dimethylphosphorothioateS-((6-Chloro-2,3-dihydro-2-oxo-1,3-oxazolo-(4,5-b)pyridin-3-yl)methyl) O,O-dimethyl phosphorothioate

16 more reported names

9440R8149UCHEBI:38578S-[(6-chloro-2-oxo[1,3]oxazolo[4,5-b]pyridin-3(2H)-yl)methyl] O,O-dimethyl phosphorothioateS-[(6-Chloro-2-oxo[1,3]oxazolo[4,5-b]pyridin-3(2H)-yl)methyl] o,o-dimethyl thiophosphateS-((6-chloro-2-oxo(1,3)Oxazolo(4,5-b)pyridin-3(2H)-yl)methyl) O,O-dimethyl thiophosphateS-[(6-Chloro-2-oxooxazolo[4,5-b]pyridin-3(2H)-yl)methyl] O,O-dimethylphosphorothioateS-((6-chloro-2-oxo(1,3)oxazolo(4,5-b)pyridin-3(2H)-yl)methyl) O,O-dimethyl phosphorothioateRefChem:115947S-6-chloro-2-oxooxazol(4,5-6)-pyridin-3-yl methyl O,O-dimethylphosphorothioate252-626-0azamethiphos (ISO); S-((6-chloro-2-oxooxazolo(4,5-b)pyridin-3(2H)-yl)methyl) O,O-dimethyl thiophosphatedimethyl (((6-chloro-2-oxo-2H,3H-(1,3)oxazolo(4,5-b)pyridin-3-yl)methyl)sulfanyl)phosphonateCiba-Geigy 18809C9H10ClN2O5PSS-((6-Chloro-2-oxooxazolo[4,5-b]pyridin-3(2H)-yl)methyl) O,O-dimethyl phosphorothioateAzamethiphos [BAN]

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:38578
ChEMBL:CHEMBL1867031
EPA DTXSID:DTXSID9034818
PubMed:33844597
PubMed:28385489
PubMed:23034871
PubMed:22638882
PubMed:22619673
PubMed:21788198
PubMed:21783511
PubMed:21251949
PubMed:20056576
PubMed:18484351
PubMed:18481337
PubMed:18177688

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 35575-96-3

1 total

Annex

Entry

1685

Azamethiphos (ISO); S-[(6-chloro-2-oxooxazolo[4,5-b]pyridin-3(2H)-yl)methyl] O,O-dimethyl thiophosphate

252-626-0

CMR

How CAS 35575-96-3 is used on this site

CAS 35575-96-3 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 35575-96-3 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 35575-96-3 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.

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