Triethyl Citrate
AKA “77-93-0, Ethyl citrate, Citroflex 2, Eudraflex, Hydragen CAT, Citric acid, triethyl ester, 1, 2, 3-Propanetricarboxylic acid, 2-hydroxy-, Triaethylcitrat, FEMA No. 3083
Synthetic
Ingredient Facts
Triethyl citrate
AKA: 77-93-0, Citroflex 2, Eudraflex, Hydragen CAT, Citric acid, Triethyl ester, 1, 2, 3-Propanetricarboxylic acid, 2-hydroxy-, Triaethylcitrat, FEMA No. 3083
Synthetic · Skin Conditioning · EWG: 2
Synthetic
Skin Conditioner
Chemical Exfoliant
Synthetic
Clean
Triethyl citrate is used in foods as a flavouring agent, solvent and surface-active agent Triethyl citrate is an ester of citric acid. It is a colorless, odorless liquid used as a food additive (E number E1505) to stabilize foams, especially as whipping aid for egg white. In pharmaceutical coatings and plastics. Triethyl citrate belongs to the family of Tricarboxylic Acids and Derivatives. These are organic compounds containing three carboxylic acid groups (or salt/ester derivatives thereof).
Solubility In water, 6.50X10+4 mg/L at room temp
Formula
C12H20O7
Mol. Weight
276.28
CAS #
77-93-0
Form
Liquid
State
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Solvent
Viscosity Controlling
Traditional Use
The CAS number for glycerol triacetate (triacetin), a synthetic ester developed in the early 20th century. Used as a plasticizer and humectant in cosmetics to improve texture and water retention.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
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Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overv...
Bikash Chandra Behera
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
Citric acid from Aspergillus niger: a comprehensive overview.
Behera BC
Critical reviews in microbiology, 2020
Final Report on the Safety Assessment of Acetyl Triethyl Citrate, Acetyl Tributyl Citrate, Acetyl Trihexyl Citrate, and Acetyl Trioctyl Citrate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Acetyl Triethyl Citrate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Citric Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ethyl Citrates
European Commission
EU Cosmetic Ingredient Database (CosIng)
Acetyl Triethyl Citrate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Citric Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Triethyl Citrate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
Safety Assessment of Citric Acid, Inorganic Citrate Salts, and Alkyl Citrate Esters as Used in Cosmetics.
Fiume MM, Heldreth BA, Bergfeld WF, Belsito DV, Hill RA et al.
International journal of toxicology, 2014
Citric acid
Health Canada
Health Canada Cosmetic Ingredient Hotlist
Final report on the safety assessment of acetyl triethyl citrate, acetyl tributyl citrate, acetyl trihexyl citrate, and acetyl trioctyl citrate.
Johnson W Jr
International journal of toxicology, 2002
Final report on the safety assessment of acetyl triethyl citrate, acetyl tributyl citrate, acetyl trihexyl citrate, and acetyl trioctyl citrate.
Johnson W Jr
International journal of toxicology, 2002
Assessing the neurotoxic risks of triethyl citrate in daily environmental exposure using network toxicology and molecular docking.
Ouyang W, Zhu C, Li Y, Huang H, Li F et al.
Ecotoxicology and environmental safety, 2025
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR