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CAS 3398-33-2

CAS 3398-33-2 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 3398-33-2
CAS 3398-33-2PubChem CID 23667258

Sodium Undecylenate

The CIR Expert Panel concluded that the following ingredients are safe in the present practices of use andconcentration described in the safety assessment when formulated to be non-irritating and non-sensitizing, which may be basedon a QRA...Sodium Undecylenate... — Cosmetic Ingredient Review (CIR)

IUPAC name
sodium undec-10-enoate
Molecular formula
C11H19NaO2
Molecular weight
206.26 g/mol
Exact mass
206.12827413 Da
Topological polar surface area
40.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
2
Defined stereocentres
0

Also known as

Undecylenic Acid Sodium Salt10-Undecenoic acid, sodium saltUNII-V50TG7E11WV50TG7E11WSODIUM UNDECYLENATE [VANDF]EINECS 222-264-8SODIUM UNDECYLENATE [WHO-DD]10-Undecenoic, sodium salt
16 more reported names
AI3-1972110-Hendecenoic acid, sodium saltSODIUM UNDECYLENATE [INCI]NSC 2836NSC-2836Sodium undec10enoateRefChem:18415010Undecenoic, sodium salt682-768-2sodium;undec-10-enoateSodium 10-undecenoateSODIUM DERIVATIVE OF 10-UNDECENOATESodium undecylenate, AldrichCPRNSC2836HY-W12745210-Undecenoic acid, sodium salt (1:1)
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

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 3398-33-2

1 total
No records found for this CAS number.

How CAS 3398-33-2 is used on this site

CAS 3398-33-2 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 3398-33-2 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.