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CAS 37673-20-4

CAS 37673-20-4 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 37673-20-4

CAS 37673-20-4PubChem CID 18654323

Cetyl PCA

IUPAC name: hexadecyl (2S)-5-oxopyrrolidine-2-carboxylate

Molecular formula: C21H39NO3
Molecular weight: 353.5 g/mol
Exact mass: 353.29299411 Da
XLogP3: 7.3
Topological polar surface area: 55.4 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 1

Also known as

28MYO763XVEINECS 253-589-3CETYLIDONE U-AL-Proline, 5-oxo-, hexadecyl esterHEXADECYL 2-PYRROLIDONE-5-CARBOXYLATEN-HEXADECYL 2-PYRROLIDONE-5-CARBOXYLATERefChem:575390CETYL PCA [INCI]

3 more reported names

Hexadecyl 5-oxo-L-prolinateUNII-28MYO763XVBJXKLGPZWDKIHU-IBGZPJMESA-N

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External database identifiers

EPA DTXSID:DTXSID60191089

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 37673-20-4

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How CAS 37673-20-4 is used on this site

CAS 37673-20-4 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share 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 37673-20-4 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.