Is Isopropyl Thioxanthone safe in cosmetics?
Isopropyl Thioxanthone has a safety rating of "POOR" in our database. EU status: permitted. US status: permitted.
Poor
Cosmetic Ingredient
Isopropyl Thioxanthone
INCI: ISOPROPYL THIOXANTHONE
Isopropyl Thioxanthone (CAS 5495-84-1 (2-isopropylthioxanthone) / 83846-86-0 (4-isopropylthioxanthone) [^1_6][^1_7]) is a cosmetic cosmetic ingredient functioning as Photoinitiator (UV-curing of inks and coatings). EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
Auto-generated CPSR Part A draft with source citations
CAS Number
5495-84-1 (2-isopropylthioxanthone) / 83846-86-0 (4-isopropylthioxanthone) [^1_6][^1_7]
View industrial chemical safety profile →
Function
Photoinitiator (UV-curing of inks and coatings)
Safety Rating
POOR
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not listed as a cosmetic ingredient in 21 CFR. FDA would evaluate under adulteration provisions if found as a contaminant.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Isopropyl Thioxanthone.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Isopropyl Thioxanthone.
Frequently Asked Questions
Is Isopropyl Thioxanthone allowed in the EU?
Isopropyl Thioxanthone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Isopropyl Thioxanthone do in cosmetics?
Isopropyl Thioxanthone functions as: Photoinitiator (UV-curing of inks and coatings). It is classified as a cosmetic ingredient in our database. CAS number: 5495-84-1 (2-isopropylthioxanthone) / 83846-86-0 (4-isopropylthioxanthone) [^1_6][^1_7].
Compliance Tools
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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