Glycerol
CAS 56-81-5C3H8O392.09 g/mol
Glycerol is a triol with a structure of propane substituted at positions 1, 2 and 3 by hydroxy groups. It has a role as a geroprotector, an osmolyte, a detergent, a solvent, a mouse metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is an alditol and a triol.
IUPAC: propane-1,2,3-triol
PubChem
Physical & Chemical Properties
| Melting Point | 64 °F (NTP, 1992) |
| Boiling Point | 554 °F at 760 mmHg (decomposes) (NTP, 1992) |
| Density | 1.261 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | greater than or equal to 100 mg/mL at 64 °F (NTP, 1992) |
| Flash Point | 320 °F (NTP, 1992) |
| Vapor Pressure | 0.0025 mmHg at 122 °F ; 40 mmHg at 388 °F (NTP, 1992) |
| pH | Neutral to litmus |
| Appearance | Glycerine appears as a colorless to brown colored liquid. Combustible but may require some effort to ignite. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2905
Data: UN Comtrade
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