undefined 1
undefined 2
Hexyl methacrylate
AKA “142-09-6, N-Hexyl methacrylate, Hexyl 2-methyl-2-propenoate, Methacrylic acid, hexyl ester, 2-Propenoic acid, 2-methyl-, ENT 25419, 538B2Q3HSV, DTXSID4025406, NSC-24169”
Ingredient
Ingredient Facts
Hexyl methacrylate
AKA: 142-09-6, N-Hexyl methacrylate, Hexyl 2-methyl-2-propenoate, Methacrylic acid, Hexyl ester, 2-Propenoic acid, 2-methyl-, ENT 25419, 538B2Q3HSV, DTXSID4025406, NSC-24169
Ingredient · Perfuming · EWG: 4
Synthetic
Fragrance
Not Clean
N-hexyl methacrylate is a clear colorless liquid. (NTP, 1992)
Solubility Slightly soluble (NTP, 1992)
Formula
C10H18O2
Mol. Weight
170.25
CAS #
142-09-6
Form
Liquid
State
N-hexyl methacrylate is a clear colorless liquid. (NTP, 1992)
See origin →
Functions
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Adds Fragrance
Traditional Use
A synthetic polymer ingredient developed for cosmetic film-forming applications. Used to create long-wear or waterproof properties in makeup and personal care products.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Final Report on the Safety Assessment of 2-Methyl-5-Hydroxyethylaminophenol
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Methacrylic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
2-Methyl-5-Hydroxyethylaminophenol
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Butyl Acrylate/Cyclohexyl Methacrylate Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Butyl Acrylate/Ethylhexyl Methacrylate Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C8-22 Alkyl Acrylates/Methacrylic Acid Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Cyclohexyl methacrylate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Cyclohexyl Methacrylate/Ethylhexyl Methacrylate Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Ethylhexyl Methacrylate/Methyl Methacrylate/VP Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Hexyl methacrylate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Methacrylic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Methacrylic Acid/Styrene/VP Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG/PPG-5/2 Methacrylate/Methacrylic Acid Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
2-Methyl-1-Phenyl-2-Propanol
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
2-Methyl-5-Hydroxyethylaminophenol
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Butyl Acrylate/Ethylhexyl Methacrylate Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
C8-22 Alkyl Acrylates/Methacrylic Acid Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Methacrylic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
2-Methyl-m-phenylenediamine
Health Canada
Health Canada Cosmetic Ingredient Hotlist
→
Methacrylic acid
Health Canada
Health Canada Cosmetic Ingredient Hotlist
→
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR