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
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
Functions
Plasticiser
Antioxidant
Adds flexibility
Traditional Use
Modern synthetic ester used as an emollient in cosmetic formulations. Developed to provide lightweight conditioning without interfering with formulation stability.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR