CAS 126646-15-9 — 0 EU Cosmetic Records

Chemical identity and properties

PubChem 2D chemical structure for CAS 126646-15-9

CAS 126646-15-9PubChem CID 44154180

3,6,9,12,15,18,21,24,27-Nonaoxapentatriacontanoic acid, sodium salt (1:1)

IUPAC name: sodium 2-[2-[2-[2-[2-[2-[2-[2-(2-octoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]acetate

Molecular formula: C26H51NaO11
Molecular weight: 562.7 g/mol
Exact mass: 562.33290672 Da
Topological polar surface area: 123.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 11
Covalent units: 2
Defined stereocentres: 0

Also known as

RefChem:487138Sodium capryleth-9 carboxylate3,6,9,12,15,18,21,24,27-Nonaoxapentatriacontanoic acid, sodium saltsodium;2-[2-[2-[2-[2-[2-[2-[2-(2-octoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]acetateACZURWACGCXVLA-UHFFFAOYSA-M3,6,9,12,15,18,21,24,27-Nonaoxapentatricontanoic acid, sodium saltPEG-9 Capryl ether carboxylic acid, sodium saltSodium 3,6,9,12,15,18,21,24,27-nonaoxapentatricontanoate

1 more reported name

Sodium 3,6,9,12,15,18,21,24,27-nonaoxapentatriacontan-1-oate

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID60888927

Evidence from additional scientific databases

NIH PubChem PUG-View

Exact identifier match44154180

Attributed physical-property, hazard, environmental and use annotations.

Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record

Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.

Additional source coverage and match status

Source	Result	Checked
NIH PubChem PUG-View	Exact match	2026-08-31

A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.

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

How CAS 126646-15-9 is used on this site

CAS 126646-15-9 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 126646-15-9 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.