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CAS 26523-78-4

CAS 26523-78-4 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 26523-78-4

CAS 26523-78-4PubChem CID 76452

Tris(nonylphenyl)phosphite

IUPAC name: tris(4-nonylphenyl) phosphite

Molecular formula: C45H69O3P
Molecular weight: 689.0 g/mol
Exact mass: 688.49843306 Da
XLogP3: 19.3
Topological polar surface area: 27.7 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

3050-88-2Phenol, 4-nonyl-, phosphite (3:1)Antioxidant TNPIrgafos TNPPNaugard TNPPSUMILIZER TNPp-Nonylphenol, phosphite (3:1)DOVERPHOS 4

16 more reported names

Tris(p-nonylphenyl) phosphiteE423N4NW2ZPhenol, nonyl-, 1,1',1''-phosphiteTris[p-nonylphenyl] phosphiteTrisnonylphenylphosphitRefChem:900350Phenol,nonyl-,phosphite (3:1)TRIS(NONYLPHENYL)PHOSPHITE [INCI]247-759-6608-492-4Phenol, nonyl-, phosphite (3:1)Tris(nonylphenyl) phosphitetris(4-nonylphenyl)phosphitetris-(p-nonylphenyl) phosphiteMGMXGCZJYUCMGY-UHFFFAOYSA-NPhenol, 4-anonyl-a, phosphite (3:1)

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External database identifiers

EPA DTXSID:DTXSID60872866
PubMed:21367689
PubMed:16546889

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

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CAS 26523-78-4 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 26523-78-4 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.