(±)-1,2-Propanediol, liquid

Supplier: MP Biomedicals
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Synonyms: Propylene glycol(±)-1,2-Propylene glycol1,2-Dihydroxypropane1,2-Propanediol(±)-1,2-Dihydroxy propane

ICNA0215195791EA 41.6 GBP
ICNA0215195791 ICNA0215195790
(±)-1,2-Propanediol, liquid
Propylene glycol

Propylene glycol is a clear, colorless and hygroscopic liquid. Propylene glycol contains an asymmetrical carbon atom, so it exists in two stereoisomers.


The freezing point of water is depressed when mixed with propylene glycol due to increased opportunity for hydrogen bonding.
Propylene glycol is a solvent in many pharmaceuticals, including oral, injectable and topical formulations, such as for diazepam and lorazepam that are insoluble in water, use propylene glycol as a solvent in their clinical, injectable forms. It is also used as automotive antifreeze.

Formula: CH₃CH(OH)CH₂OH
MW: 76.1 g/mol
Boiling Pt: 187.9 °C (1013 hPa) (lit.)
Melting Pt: –60 °C (lit.)
Density: 1.04 g/cm³ (20 °C) (lit.)
Storage Temperature: Ambient
MDL Number: MFCD00064272
CAS Number: 57-55-6
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