Adipic Acid
AKA “hexanedioic acid, 124-04-9, Adipinic acid, 1, 4-Butanedicarboxylic acid, Adilactetten, Acifloctin, Acinetten, 6-Hexanedioic acid, Molten adipic acid”
Acid
Ingredient Facts
Adipic acid
AKA: Hexanedioic acid, 124-04-9, Adipinic acid, 1, 4-Butanedicarboxylic acid, Adilactetten, Acifloctin, Acinetten, 6-Hexanedioic acid, Molten adipic acid
Acid · Buffering · EWG: 1
Synthetic
Safety Concern
Acid
Clean
Adipic acid is an alpha,-dicarboxylic acid that is the 1,4-dicarboxy derivative of butane. It has a role as a food acidity regulator and a human xenobiotic metabolite. It is a dicarboxylic fatty acid and an alpha,omega-dicarboxylic acid. It is a conjugate acid of an adipate(1-).
Solubility Slightly soluble in water. Freely soluble in ethanol
Formula
C6H10O4
Mol. Weight
146.14
CAS #
124-04-9
Form
Liquid
State
Adipic acid is a white crystalline solid. It is insoluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is u
See origin →
Functions
Buffering
Antioxidant
Antimicrobial
Anti-Inflammatory
Provides scent
Maintains optimal pH
Traditional Use
Synthetically produced from benzene in the 1940s-1950s as a replacement for natural citric acid. Used in cosmetics as a pH buffer and preservative booster since the mid-20th century.
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Final Report on the Safety Assessment of Adipic Acid Dihydrazide
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
1,4-Butanediol/Succinic Acid/Adipic Acid/HDI Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Adipic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Adipic Acid/CHDM/MA/Neopentyl Glycol/Trimellitic Anhydride Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Adipic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Toxicity of adipic acid.
Kennedy GL Jr
Drug and chemical toxicology, 2002
Allergic Contact Dermatitis to Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer in a Lip Balm.
Lockmann A, Schill T, Schubert S, Buhl T
Contact dermatitis, 2026
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR