3,4-Dihydropyran

3,4-Dihydropyran is mainly as a pharmaceutical intermediate. Alcohol group protection reagent; widely used in hydroxyl group protection reagent. Dihydropyran is chemically active, and tetrahydropyran, pentanediol, glutaric acid, valerolactone, pentadiene and resin products can be produced through polymerization, hydrogenation, oxidation and other reactions.

Product Name: 3,4-dihydropyran

Other Name: 2,3-dihydropyran

CAS NO.: 110-87-2

Assay: 98.0%min

Appearance: colorless transparent liquid

Package: 180kg/iron-drum and long-term inventory

Usage:Pharmaceutical and organic synthesis intermediates, Hydroxyl protection agents.

Product Name 3,4-dihydropyran
Other Name 3,4-Dihydro-2H-pyran; 2,3-Dihydro-4H-pyran ; 5,6-Dihydro-4H-pyran ; DHP
CAS 110-87-2
EINECS 203-810-4
Molecular Formula C5H8O
Molecular Weight 84.1164
inchi InChI=1/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2
Density 0.9221 (19/15℃)
Boiling point 86-87℃
Flash point -15℃
Vapor pressure 77.8 hPa (20 ¬C)
Refractive index 1.4402 (19℃)
Dangerous goods sign F,Xi
Risk term R11R36/37/38
Security term S9S16S33
Dangerous Goods Transport Number UN2376 3/PG 2



Storage:
- Store in a cool, ventilated warehouse. Keep away from fire and heat.
- Should be stored separately with oxidant, reducing agent, alkali, avoid mixing store. Equipped with the corresponding varieties and quantities of fire equipment.
-The storage area shall be provided with emergency leakage treatment equipment and suitable storage materials.