1,2,3-Propanetriol

Description

1,2,3-Propanetriol · CAS 30918-77-5 · C3H8O3. UNII PDC6A3C0OX. Boiling Point: 290 °C (decomposes); Boiling Point: 290 °C; Boiling Point: 290 °C @760 [mm Hg].

Identification

CAS Registry Number	30918-77-5
PubChem CID	753
Molecular formula	C3H8O3
IUPAC name	propane-1,2,3-triol
UNII (FDA)	PDC6A3C0OX
FEMA number	2525
JECFA number	909

Computed Descriptors

Molecular Weight	92.09
XLogP3	-1.8
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	2
Exact Mass	92.047344113
Monoisotopic Mass	92.047344113
Topological Polar Surface Area	60.7
Heavy Atom Count	6
Formal Charge	0

Physical & Chemical Properties

Boiling Point	290 °C (decomposes)
Boiling Point	290 °C
Boiling Point	290 °C @760 [mm Hg]
Melting Point	64 °F (NTP, 1992)
Melting Point	18.1 °C
Melting Point	20 °C
Melting Point	18 °C
Melting Point	64 °F
Flash Point	320 °F (NTP, 1992)
Flash Point	177 °C

Physical description & handling notes

• Glycerine appears as a colorless to brown colored liquid. Combustible but may require some effort to ignite.
• Dry Powder; Large Crystals; Gas Vapor; Liquid; Wet Solid; Other Solid; Liquid; Other Solid; Dry Powder; Liquid; Other Solid; Large Crystals; Wet Solid; Large Crystals; Liquid; Liquid; Other Solid; CBI; Large Crystals
• Clear, colourless hygroscopic syrupy liquid with not more than a slight characteristic odour, which is neither harsh nor disagreeable
• Clear, colorless, odorless, syrupy liquid or solid (below 64 degrees F). [Note: The solid form melts above 64 degrees F but the liquid form freezes at a much lower temperature.]; [NIOSH]
• Liquid
• HYGROSCOPIC VISCOUS COLOURLESS LIQUID.

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS FLAVOURING_AGENTFood Additives -> CARRIER_SOLVENT; EMULSIFIE: Flavouring Agent GLYCERIN, SYNTHETIC ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, HUMECTANT, MASTICATORY SUBST Monoglycerides
GHS notification summary	98.3% (5522 / 5617)

GHS Hazard Classification

GHS notification summary	98.3% (5522 / 5617)

Documented Uses

• Used as a solvent, humectant, plasticizer, emollient, sweetener, coating for paper, antifreeze for automobiles, and fluid for gas meters, hydraulic jacks, and shock absorber; Also used to make nitroglycerol (dynamite), cosmetics, soaps, liqueurs, confectioneries, inks, lubricants, glues; and medications; Also used to keep fabrics pliable; to preserve printing on cotton; and to defrost windshields; [HSDB; Merck Index]
• Pulp and Paper Processing [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• For more Uses (Complete) data for GLYCERIN (9 total), please visit the HSDB record page.
• Synthetic Polymer MALDI Matrix Compounds
• This is an endogenously produced metabolite found in the human body. It is used in metabolic reactions, catabolic reactions or waste generation.

Synonyms

glycerol; glycerin; 56-81-5; Glycerine; 1,2,3-Propanetriol; Glycyl alcohol; Trihydroxypropane; Glyceritol; Osmoglyn; 1,2,3-trihydroxypropane; Glyrol; Glysanin; Grocolene; Ophthalgan; Glycerinum; Vitrosupos

Frequently Asked Questions

What are the CAS number and molecular formula of 1,2,3-Propanetriol?

CAS 30918-77-5; molecular formula C3H8O3; molecular weight — g/mol.

What other names is 1,2,3-Propanetriol known by?

glycerol, glycerin, 56-81-5, Glycerine, 1,2,3-Propanetriol, Glycyl alcohol.

What is the regulatory status of 1,2,3-Propanetriol?

Documented regulatory listings: FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; FLAVOURING_AGENTFood Additives -> CARRIER_SOLVENT; EMULSIFIE: Flavouring Agent.

Is 1,2,3-Propanetriol classified as hazardous?

98.3% of GHS notifications report no hazard classification (5522 of 5617).

What are the key physical properties of 1,2,3-Propanetriol?

Boiling Point: 290 °C (decomposes); Boiling Point: 290 °C; Boiling Point: 290 °C @760 [mm Hg]; Melting Point: 64 °F (NTP, 1992).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.