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CAS 162881-26-7 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 8988925/04/2014

BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE

Methanone, 1,1'-(phenylphosphinylidene)bis[1-(2,4,6-trimethylphenyl)-

BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 162881-26-7

CAS 162881-26-7PubChem CID 164512

Bis-trimethylbenzoyl phenylphosphine oxide

IUPAC name: [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone

Molecular formula: C26H27O3P
Molecular weight: 418.5 g/mol
Exact mass: 418.16978172 Da
XLogP3: 6.0
Topological polar surface area: 51.2 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxidePhosphine oxide, phenylbis(2,4,6-trimethylbenzoyl)-JOV61FMS35bis(2,4,6-trimethylbenzoyl)phenylphosphine oxideIRGACURE 801phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide(Phenylphosphoryl)bis[(2,4,6-trimethylphenyl)methanone]EC 423-340-5

16 more reported names

Methanone, 1,1'-(phenylphosphinylidene)bis(1-(2,4,6-trimethylphenyl)-(PHENYLPHOSPHORYL)BIS((2,4,6-TRIMETHYLPHENYL)METHANONE)Methanone, 1,1'-(phenylphosphinylidene)bis[1-(2,4,6-trimethylphenyl)-RefChem:569435BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE [INCI]423-340-5605-307-9(phenylphosphoryl)bis(mesitylmethanone)UNII-JOV61FMS35C26H27O3PP2312bis(2,4,6-trimethylbenzoyl)-phenyl phosphine oxidePhenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, 97%, powderFT-0656698bis(2,4,6-trimethylbenzoyl)phenTox21_302690

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL3182971
EPA DTXSID:DTXSID8044597
PubMed:19672536
PubMed:18585266
PubMed:12959602
PubMed:12926033

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

Inventory details for BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE

INCI name

BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE

Description

Methanone, 1,1'-(phenylphosphinylidene)bis[1-(2,4,6-trimethylphenyl)-

Record provenance

Inventory reference: 89889
Imported identity: BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE
Source update: 25/04/2014

European Commission CosIng source notes

Annex records for BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE

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Key data

CAS

162881-26-7

—

Restriction

—

Function

LIGHT STABILIZER: Protecting the cosmetic product from deterioration effects of light.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#3805 · BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE

Ingredients with overlapping formulation functions

BIS-PABA PORPHYRA 334ANTIOXIDANT, LIGHT STABILIZER, UV FILTER

BIS-SH-DECAPEPTIDE-9 PORPHYRA 334ANTIOXIDANT, LIGHT STABILIZER, UV FILTER

BIS-SH-PENTAPEPTIDE-38 PORPHYRA 334ANTIOXIDANT, LIGHT STABILIZER, UV FILTER

BIS-SH-PENTAPEPTIDE-5 PORPHYRA 334ANTIOXIDANT, LIGHT STABILIZER, UV FILTER

BUTYL METHOXYDIBENZOYLMETHANELIGHT STABILIZER, UV ABSORBER, UV FILTER

C12-22 ALKYL ACRYLATE/HYDROXYETHYLACRYLATE COPOLYMERBINDING, LIGHT STABILIZER, VISCOSITY CONTROLLING

C14-15 ALCOHOLSEMULSION STABILISING, LIGHT STABILIZER, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SURFACTAN…

C20-40 ALCOHOLSEMULSION STABILISING, LIGHT STABILIZER, SKIN CONDITIONING, SURFACTANT - EMULSIFYING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE appears in the CosIng inventory

The CosIng inventory lists BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE carries the following function designation(s):

LIGHT STABILIZER

CAS 162881-26-7 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE

This page reproduces the CosIng inventory entry for BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research BIS-TRIMETHYLBENZOYL PHENYLPHOSPHINE OXIDE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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