Acetyl Tributyl Citrate

AKA: 77-90-7, Tributyl 2-acetoxypropane-1, 2, 3-tricarboxylate, Acetyltributyl citrate, Tributyl acetylcitrate, Citroflex A, Blo-trol, Citroflex A 4, Tributyl citrate acetate, ATBC
Synthetic
Fragrance
Clean
OriginAcetyl tributyl citrate is synthesized from citric acid, a compound derived from citrus fruits or produced through fermentation. It is created through esterification, where citric acid reacts with tributanol to form the citrate ester.
Tributyl 2-acetoxy-1,2,3-propanetricarboxylate
Solubility In water, 5 mg/L, temp not specified
Formula
C20H34O8
Mol. Weight
402.50
CAS #
77-90-7
Form
Liquid
State
Other Solid; Liquid; Pellets or Large Crystals
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Functions
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Plasticiser
Antioxidant
Anti-Inflammatory
Moisturizing
Provides scent
Adds flexibility
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Skin Irritant
4 studies / 4 not irritating (CIR 271)
Not a Sensitizer
2 studies / 2 not sensitizing (CIR 271)
Mixed Eye Irritation Results
1 study / 1 mixed / reactions moderate (CIR 271)
Concentration Guide
Leave-on5.8–8.9%
Rinse-offNot reported
0%50%100%
CIR reported use · 2018 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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