(±)-Propylene oxide

ReagentPlus®, ≥99%

(±)-Methyloxirane, 1,2-Epoxypropane
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:

vapor density

2 (vs air)

vapor pressure

29.43 psi ( 55 °C)
8.59 psi ( 20 °C)

product line




autoignition temp.

1378 °F

expl. lim.

37 %

refractive index

n20/D 1.366 (lit.)


34 °C (lit.)


−112 °C (lit.)


0.83 g/mL at 25 °C (lit.)

SMILES string




InChI key


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Josep Casamada Ribot et al.
Chemical communications (Cambridge, England), 46(37), 6971-6973 (2010-08-24)
The aqueous gelation of a quaternary ammonium oligo(propylene oxide)-based ionic liquid yields ion gels with a reverse thermoresponsive behavior (i.e., mechanical moduli and viscosity increase with temperature) and enhanced ionic conductivities.
Denis Merlet et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 209(2), 315-322 (2011-02-25)
The application of the G-SERFph pulse sequence is presented on enantiomeric mixtures dissolved in a chiral liquid crystal. It aims at editing, within one single 2D spectrum, every proton coupling which is experienced by a given proton site in the...
Aude Bouchet et al.
The Journal of organic chemistry, 76(10), 4178-4181 (2011-04-08)
ECD and NMR experiments show that the complexation of propylene oxide (PrO) within the cavity of an enantiopure water-soluble cryptophane 1 in NaOH solution is enantioselective and that the (R)-PrO@PP-1 diastereomer is more stable than the (S)-PrO@PP-1 diastereomer with a...
Javix Thomas et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(16), 4582-4587 (2011-03-25)
Chirality recognition in the hydrogen-bonded glycidol···propylene oxide complex has been studied by using rotational spectroscopy and ab initio calculations. An extensive conformational search has been performed for this binary adduct at the MP2/6-311++G(d,p) level of theory and a total of...
Jasper Jammaer et al.
Journal of the American Chemical Society, 133(34), 13737-13745 (2011-07-28)
Hexagonally ordered mesoporous silica coined COK-12 was synthesized in a continuous process by combining streams of sodium silicate and citric acid/sodium citrate buffered solution of (ethylene oxide)(20)-(propylene oxide)(70)-(ethylene oxide)(20) triblock copolymer (Pluronic P123) from separate reservoirs. COK-12 precipitated spontaneously upon...

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