Specification of 3,4-Dihydro-2H-pyran

1: Identification

Name: 3,4-Dihydro-2H-pyran

Synonyms:  2,3-Dihydro-4H-pyran ; 5,6-Dihydro-4H-pyran ; DHP; Dihydropyran

Molecular Structure:

Molecular Formula:   C5H8O

Molecular Weight:  84.12

CAS NO.:   110-87-2

EINECS:  203-810-4

2：Properties

Density:  0.922

Melting point:  -70 ºC

Boiling point:  86ºC

Refractive index:  1.4405-1.4425

Flash point:   -9 ºC

Water solubility:  20 g/L (20 ºC)

3: Quality Standard

Packing: 200L steel drum, net weight is 180kg/drum.

Storage Condition: stored under normal temperature, sealed and keep away from open fire.

Usage: 1: used as pharmaceutical intermediates; 2: the alcohol group protecting agent, widely used hydroxy protecting reagents.; 3:dihydropyran active chemical properties, through polymerization, hydrogenation, oxidation and other reactions can be obtained tetrahydropyran, pentanediol, glutaric, valerolactone, pentadiene and resin products.

UN NO: 2333                Hazard Class: 3(6.1)            Packing Group: II