Is Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) safe in cosmetics?
Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L)
Also known as: Phosphinic acid, P-phenyl-P-(2,4,6-trimethylbenzoyl)-, ethyl ester, Ethyl (mesitylcarbonyl)phenylphosphinate
INCI: ETHYL TRIMETHYLBENZOYL PHENYLPHOSPHINATE
Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) (CAS 84434-11-7) is a cosmetic cosmetic ingredient functioning as UV Absorber / Photoinitiator (primarily nail gel systems). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 84434-11-7 →
Auto-generated CPSR Part A draft with source citations
Function
UV Absorber / Photoinitiator (primarily nail gel systems)
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
[ethoxy(phenyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone
InChIKey
ZMDDERVSCYEKPQ-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — no specific CFR restriction for cosmetic use
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L).
Calculate MoS for your specific formulation with the MoS Calculator.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
100 - 1,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Photosensitizers
Expert Verdict
Expert safety assessment and concern-level summary for Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L).
Regulatory Flags
potential-allergen
Known Synonyms
Phosphinic acid, P-phenyl-P-(2,4,6-trimethylbenzoyl)-, ethyl ester
Ethyl (mesitylcarbonyl)phenylphosphinate
Chemical Function
Photosensitizers
Australian Status
AICIS status: listed_with_terms
Specific information requirements: Obligations to provide information apply. You must tell us within 28 days if the circumstances of your importation or manufacture (introduction) are different to those in our assessment.
Frequently Asked Questions
Is Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) allowed in the EU?
Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) do in cosmetics?
Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) functions as: UV Absorber / Photoinitiator (primarily nail gel systems). It is classified as a cosmetic ingredient in our database. CAS number: 84434-11-7.
Is Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) used outside cosmetics?
Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Ethyl Trimethylbenzoyl Phenylphosphinate (TPO-L) compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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