Is 2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone safe in cosmetics?
2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted.
Moderate
Cosmetic Ingredient
2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone
INCI: 2,3-DIMETHYL-4-FORMYL-1-PHENYL-5-PYRAZOLONE
2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone (CAS Not confirmed in available databases - structurally related to 4-amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one (CAS 83-07-8)) is a cosmetic cosmetic ingredient functioning as Hair dyeing - pyrazolone-type oxidative hair dye coupler. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database.
Auto-generated CPSR Part A draft with source citations
CAS Number
Not confirmed in available databases - structurally related to 4-amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one (CAS 83-07-8)
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Function
Hair dyeing - pyrazolone-type oxidative hair dye coupler
Safety Rating
MODERATE
Regulatory Status
EU EU Status
restricted
US US Status
permitted
US Notes
Coal-tar hair dye exemption under FD\&C Act § 601(a); requires caution labeling
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for 2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for 2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone.
Frequently Asked Questions
Is 2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone allowed in the EU?
2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does 2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone do in cosmetics?
2,3-Dimethyl-4-formyl-1-phenyl-5-pyrazolone functions as: Hair dyeing - pyrazolone-type oxidative hair dye coupler. It is classified as a cosmetic ingredient in our database. CAS number: Not confirmed in available databases - structurally related to 4-amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one (CAS 83-07-8).
Compliance Tools
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MoS Calculator
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