Acetyl Tributyl Citrate
AKA “tributyl 2-acetoxypropane-1, 3-tricarboxylate, Acetyltributyl citrate, Tributyl acetylcitrate, Citroflex A, Blo-trol, Citroflex A 4, Tributyl citrate acetate
Synthetic
Ingredient Facts
Acetyl tributyl citrate
AKA: Tributyl 2-acetoxypropane-1, 3-tricarboxylate, Acetyltributyl citrate, Tributyl acetylcitrate, Citroflex A, Blo-trol, Citroflex A 4, Tributyl citrate acetate
Synthetic · Perfuming · EWG: 1
Synthetic
Fragrance
Chemical Exfoliant
Synthetic
Clean
Helps fragrances last longer on skin while keeping formulas smooth and flexible. Derived from sustainable sources to enhance product performance.
Effective at 9.5%
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
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.
Plasticiser
Antioxidant
Protects skin from free radical damage caused by UV, pollution, and stress
Anti-Inflammatory
Moisturizing
Locks in moisture to keep skin soft and supple throughout the day
Provides scent
Adds flexibility
Traditional Use
A synthetic ester developed in the mid-20th century for use as a plasticizer and cosmetic solvent. Created to replace phthalate-based plasticizers due to safety concerns.
Skin Types
all-skin-types, gentle
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Caution
EWG
1
CIR
Safe w/Qualifications
Pregnancy
Caution
CIR Safety Findings
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Concentration Guide
4.0%
15.0%
0%21%
Effective Range
CIR reported use: 4-7 | .0015-8.9 | .8-7
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR