Is Isopropyl Maleate safe in cosmetics?
Isopropyl Maleate has a safety rating of "POOR" in our database. EU status: prohibited. US status: permitted.
Poor
Cosmetic Ingredient
Isopropyl Maleate
Also known as: 2-Butenedioic acid (2Z)-, mono(1-methylethyl) ester, 2-Butenedioic acid (2Z)-, 1-(1-methylethyl) ester, Monoisopropyl maleate, EINECS 213-109-5, Isopropyl maleate half ester (+1 more)
INCI: ISOPROPYL MALEATE
Isopropyl Maleate (CAS 924-83-4) is a cosmetic cosmetic ingredient functioning as Not reported in CosIng cosmetic function database. EU Regulation 1223/2009 status: prohibited. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 924-83-4 →
Auto-generated CPSR Part A draft with source citations
Function
Not reported in CosIng cosmetic function database
Safety Rating
POOR
Chemistry & Identifiers
IUPAC Name
4-oxo-4-propan-2-yloxybut-2-enoic acid
InChIKey
FWUIHQFQLSWYED-UHFFFAOYSA-N
Regulatory Status
EU EU Status
prohibited
US US Status
permitted
US Notes
Not specifically listed in CFR for cosmetics; no CIR review available
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 Maleate.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Isopropyl Maleate.
Regulatory Flags
potential-allergen
Known Synonyms
2-Butenedioic acid (2Z)-, mono(1-methylethyl) ester
2-Butenedioic acid (2Z)-, 1-(1-methylethyl) ester
Monoisopropyl maleate
EINECS 213-109-5
Isopropyl maleate half ester
UNII-195UF604SQ
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Isopropyl Maleate allowed in the EU?
Isopropyl Maleate EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does Isopropyl Maleate do in cosmetics?
Isopropyl Maleate functions as: Not reported in CosIng cosmetic function database. It is classified as a cosmetic ingredient in our database. CAS number: 924-83-4.
Compliance Tools
Check Isopropyl Maleate compliance across multiple jurisdictions:
Ingredient Decoder
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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