Diisobutyl Glutarate

AKA: Pentanedioic acid, Bis(2-methylpropyl) ester, Glutaric acid, Diisobutyl ester, 1, 5-bis(2-methylpropyl) ester, Pentanedioic acid bis(2-methylpropyl) ester
Synthetic
Not Clean
OriginDerived from glutaric acid and isobutanol, both petroleum-based or synthesized organic compounds. Synthesized through esterification, where glutaric acid reacts with isobutanol under catalytic conditions.
Diisobutyl Glutarate is a cosmetic ingredient used as plasticiser. Also known as Pentanedioic acid. Assessed as safe by the CIR.
Formula
C13H24O4
Mol. Weight
244.33
CAS #
71195-64-7
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Plasticiser
Antioxidant
Adds flexibility
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2012
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR