P50404

1,3-Propanediol

98%

• Synonym(s): 1,3-Dihydroxypropane, Trimethylene glycol
• Linear Formula: HO(CH₂)₃OH
• CAS Number: 504-63-2
• Molecular Weight: 76.09
• Beilstein/REAXYS Number: 969155
• EC Number: 207-997-3
• MDL number: MFCD00002949
• UNSPSC Code: 12352100
• PubChem Substance ID: 24898583
• NACRES: NA.22

Properties

• vapor pressure: 0.8 mmHg ( 20 °C); 9.8 mmHg ( 100 °C)
• assay: 98%
• refractive index: n20/D 1.440 (lit.)
• bp: 214 °C/760 mmHg (lit.)
• mp: −27 °C (lit.)
• density: 1.053 g/mL at 25 °C (lit.)
• SMILES string: OCCCO[H]
• InChI: 1S/C3H8O2/c4-2-1-3-5/h4-5H,1-3H2
• InChI key: YPFDHNVEDLHUCE-UHFFFAOYSA-N

Description

Application

1,3-Propanediol can be used as:

• A solvent as well as stabilizer in the preparation of thin films.[1]
• A monomer to synthesize various polyesters such as poly(propylene terephthalate) (PPT), poly(propylene isophthalate) (PPI), and poly(propylene naphthalate) by polycondensation reaction with terephthalic, isophthalic, and 2,6-naphthalenedicarboxylic acid.[2]
• A reactant to prepare 7,8-benzoquinoline by IrCl₃ catalyzed cyclization reaction with 1-naphthylamine.[3]

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: >210.2 °F - closed cup
• flash_point_c: > 99 °C - closed cup
• ppe: Eyeshields, Gloves