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CAS 26571-11-9

CAS 26571-11-9 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 26571-11-9
CAS 26571-11-9PubChem CID 72385

Nonaethylene Glycol Nonylphenyl Ether

Tergitol NP-9 is a tergitol polymer consisting of nonylbenzene with a nine-membered poly(ethylene glycol) moiety attached at position 4. It has a role as a nonionic surfactant and a contraceptive drug. — ChEBI

IUPAC name
2-[2-[2-[2-[2-[2-[2-[2-[2-(4-nonylphenoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol
Molecular formula
C33H60O10
Molecular weight
616.8 g/mol
Exact mass
616.41864811 Da
XLogP3
4.6
Topological polar surface area
103.0 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
10
Covalent units
1
Defined stereocentres
0

Also known as

Nonoxynol-9ToDayDelfenTergitol NP9Nonylphenol octa(oxyethylene) ethanolNONOXINOL 9Nonoxinolum 9Norfox np-9
16 more reported names
Nonoxynol-9.5NSC-758941CHEBI:537753,6,9,12,15,18,21,24-Octaoxahexacosan-1-ol, 26-(nonylphenoxy)-1-(4-nonylphenyl)-1,4,7,10,13,16,19,22,25-nonaoxaheptacosan-27-olVcf ContraceptiveConceptrol OptionsGynol II Extra StrengthRefChem:927882Today Vaginal Contraceptive48Q180SH9TVcf Contraceptive Pre-filled Applicators247-816-5Nonoxynol 9Tergitol NP-9PEG-9 Nonyl phenyl ether
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External database identifiers

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 26571-11-9

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How CAS 26571-11-9 is used on this site

CAS 26571-11-9 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 26571-11-9 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.