82281

1,2-Propanediol

tested according to Ph. Eur.

• Synonym(s): 1,2-PDO, Propylenglycolum, Propylene glycol
• Linear Formula: CH₃CH(OH)CH₂OH
• CAS Number: 57-55-6
• Molecular Weight: 76.09
• Beilstein: 1340498
• EC Number: 200-338-0
• MDL number: MFCD00064272
• UNSPSC Code: 12352200
• PubChem Substance ID: 329769242
• NACRES: NA.25

Properties

• Agency: USP/NF; tested according to Ph. Eur.
• Quality Level: 100
• vapor density: 2.62 (vs air)
• vapor pressure: 0.08 mmHg ( 20 °C)
• form: viscous liquid
• autoignition temp.: 779 °F
• expl. lim.: 12.5 %
• refractive index: n20/D 1.432 (lit.)
• bp: 187 °C (lit.)
• mp: −60 °C (lit.)
• density: 1.036 g/mL at 25 °C (lit.)
• application(s): pharmaceutical (small molecule)
• SMILES string: CC(O)CO
• InChI: 1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3
• InChI key: DNIAPMSPPWPWGF-UHFFFAOYSA-N

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 219.2 °F - closed cup
• Flash Point(C): 104 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves