Tricaprin is a triglyceride obtained by formal acylation of the three hydroxy groups of glycerol by capric (decanoic) acid.
Definition
Tricaprin is a triglyceride obtained by formal acylation of the three hydroxy groups of glycerol by capric (decanoic) acid. It is a triglyceride and a decanoate ester.
Source: PubChem
US FDA substance register · UNII O1PB8EU98M · registered name TRICAPRIN · single chemical substance
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
Other restriction: ban substances that deplete the ozone layer
Source: EU CosIng ingredient list
Reviewed by CIR: Amended Safety Assessment of Triglycerides as Used in Cosmetics
Reviewed by CIR: Final Report on the Safety Assessment of Trilaurin, Triarachidin, Tribehenin, Tricaprin, Tricaprylin, Trierucin, Triheptanoin, Triheptylundecanoin, Triisononanoin, Triisopalmitin, Triisostearin, Trilinolein, Trimyristin, Trioctanoin, Triolein, Tripalmitin, Tripalmitolein, Triricinolein, Tristearin, Triundecanoin, Glyceryl Triacetyl Hydroxystearate, Glyceryl Triacetyl Ricinoleate, and Glyceryl Stearate Diaceate
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name トリカプリン: 本品は、カプリン酸（＊）とグリセリン（＊）のトリエステルであり、次の化学式で表される。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 621-71-6
- EC No.EU chemical inventory number
- 210-702-0
- DTXSIDUS EPA chemical ID
- DTXSID1042651
- DTXCIDUS EPA compound ID
- DTXCID9022651
- IUPAC
- Propane-1,2,3-triyl tridecanoate
- Molecular formula
- C33H62O6
- Molecular weight
- 554.853 g/mol
Measured properties
- Appearance
- Solid · liquid
- Melting/freezing point
- 31~32 ℃
- Initial boiling point and range
- 254 ℃
- Flash point
- 20 ℃
- Flammability (solid, gas)
- 20
- Vapour pressure
- 0.000000000067 ㎜Hg
- n-Octanol/water partition coefficient (Kow)
- 12.15
- Molecular weight
- 554.86
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: PubChem · KOSHA safety data sheets (Korea)
What products actually use it for
What the 10 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Softener and conditioner3
- Fragrance3
- Deodorizer2
- Solvent1
- Humectant1
Source: US EPA CompTox dashboard
Related literature
- Intensified Tricaprin Synthesis Using Multifrequency Ultrasound and Its Application as a Topical Drug Delivery System for Fungal Infections · 2025
- Comparison of adjuvant mechanisms of medium-chain triacylglycerol in a mouse FITC-induced contact hypersensitivity model. · 2023
- Lipid Oxidation and Degradation Products in Raw Materials: Low-Fat Topical Skin-Care Formulations · 2018
- Non-invasive Quantitative Analysis of Specific Fat Accumulation in Subcutaneous Adipose Tissues using Raman Spectroscopy · 2016
- Analysis of the effects of dietary fat on body and skin lipids of hamsters by Raman spectroscopy. · 2015
Linked databases 20
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- KOSHA safety data sheets (Korea)
- MFDS (Korea) cosmetic ingredient register 2
- NIST Chemistry WebBook
- PubChem 2
- Tlooto literature search 2 3 4 5
- UniChem cross-reference IDs
- US Cosmetic Ingredient Review (CIR) 2 3
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata
- Wikipedia · English