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Annex II Entry 1736 18/06/2025

benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1)

benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1) is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.

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Prohibited substance— Annex II, EU Regulation 1223/2009
Entry: 1736

Chemical identity and properties

PubChem 2D chemical structure for CAS 75768-65-9
CAS 75768-65-9PubChem CID 44148777

Phosphonium, triphenyl(phenylmethyl)-, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1)

IUPAC name
benzyl(triphenyl)phosphanium;4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxyphenyl)propan-2-yl]phenolate
Molecular formula
C40H31F6O2P
Molecular weight
688.6 g/mol
Exact mass
688.19658620 Da
Topological polar surface area
43.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
8
Covalent units
2
Defined stereocentres
0

Also known as

EINECS 278-305-5Triphenylbenzylphosphonium (mono bisphenol hexafluoropropyl phenoxide)Phosphonium, triphenyl(phenylmethyl)-, salt with 4,4'-(2,2,2-trifluoro-1-(trifluoromethyl)ethylidene)bis(phenol) (1:1)RefChem:173633Benzyltriphenylphosphonium 4-(1,1,1,3,3,3-hexafluoro-2-(4-hydroxyphenyl)propan-2-yl)phenolatebenzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1MEMADLITSPCZKR-UHFFFAOYSA-MBenzyltriphenylphosphonium, salt with 4,4'-(2,2,2-trifluoro-1-(trifluoromethyl)ethylidene)bis(phenol) (1:1)
5 more reported names
Benzyltri(phenyl)phosphanium 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxyphenyl)propan-2-yl]phenolateBenzyltriphenylphosphanium 4-[1,1,1,3,3,3- hexafluoro-2-(4-hydroxyphenyl)propan-2-yl]benzen-1-olateBenzyltriphenylphosphanium 4a[1,1,1,3,3,3a hexafluoroa2a(4ahydroxyphenyl)propana2ayl]benzena1aolateBenzyltriphenylphosphonium with 4,4'-(2,2,2-trifluoro-1-(trifluoromethyl)ethylidene)bis(phenol)benzyltriphenylphosphonium,saltwith4,4''-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol](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.

Record details

Chemical name

benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1)

Regulatory information

Regulation

(EU) 2025/877

See every entry this act set

Key data

CAS
75768-65-9
EC
278-305-5
Annex
II
Entry number
1736

Direct matches are limited for this record, so nearby entries from Annex II are shown as well.

Annex II 1741
Nearby record in the same annex

dibutyltin oxide

CAS: 818-08-6
EC: 212-449-1

What Annex II means for benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1)

benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1) is listed as a prohibited substance under Annex II of EU Cosmetics Regulation 1223/2009 and must not be intentionally added. Article 17 separately addresses unintended small quantities that are technically unavoidable under good manufacturing practice and compatible with the Article 3 safety requirement.

Formulators must screen their ingredients and raw materials to ensure none contain this substance. Suppliers should provide documentation confirming absence when requested.

The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Verify this substance is absent from all raw materials and finished formulations.
  • Request absence confirmation or CoA from raw material suppliers.
  • Document the screening result in the Product Information File (PIF).

Frequently asked questions

Yes. benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1) is listed in Annex II of EU Cosmetics Regulation 1223/2009 and is prohibited as an intentionally added cosmetic ingredient. Article 17 provides a narrow exception for unintended small quantities that are technically unavoidable under good manufacturing practice, provided the product remains safe under Article 3.

CAS 75768-65-9 is the unique numerical identifier assigned to benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1) by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex II record benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1)

This page summarizes one Annex II record for benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1) from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex II conditions for benzyltriphenylphosphonium, salt with 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]bis[phenol] (1:1), but confirm any final regulatory decision against the current official annex wording and source files.

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