Tetrahydropyran is a useful synthetic intermediate. Tetrahydropyranyl (THP-) ethers derived from the reaction of alcohols and dihydropyran are common intermediates in organic synthesis. In organic synthesis, the 2-tetrahydropyranyl group is used as a protecting group for alcohols.

CAS：142-68-7
中文别名：一氧六环;氧己环;
英文别名：Tetrahydropyran;1,5-EPOXYPENTANE;Tetarhydropyran;Etrahydropyran;tetrahydro-4H-pyran;tetrahydropyrane;OXACYCLOHEXANE;tetrahydro-2H-pyran;tetrahydro-2h-pyra;4,5-dihydro-2H-pyran;2H-Pyran, tetrahydro-;THP;Tetrahydro-2H-pyran;Pentamethylene Oxide;4-tetrahydropyran;
分子式：C5H10O
分子量：86.1323
精确质量：86.0732
Psa：9.23
Logp：1.1869

PubChem号：24857635
MDL号：MFCD00006585
EINECS号：205-552-8

外观与性状：无色至淡黄色液体
密度：0.881g/mLat 25°C(lit.)
沸点：88°C(lit.)
熔点：−45°C(lit.)
闪点：4°F
折射率：n20/D 1.42(lit.)
水溶解性：80 g/L (25 ºC)
稳定性：Stable under normal temperatures and pressures. On long term storage, substances with similar functional groups form explosive peroxides. Explosive peroxides may form on concentration. Tends to form explosive peroxides; especially when anhydrous. Peroxide
储存条件：Flammables area
蒸汽密度：3 (vs air)
蒸汽压：70.1mmHg at 25°C

安全说明：S9-S16-S26-S33-S36
危险类别码：R11; R19; R9; R36/37/38
WGK Germany：3
海关编码：2932999099
危险品运输编码：UN 1993 3/PG 2
危险类别：3
包装等级：II
危险品标志：F; Xi
危险标志：GHS02, GHS07
补充危害声明：可能生成爆炸性的过氧化物。
信号词：Danger
危险性描述：H225; H315; H319; H335
危险性防范说明：P210; P261; P305 + P351 + P338

用途
用作硝基喷漆、橡胶等的溶剂及Grignard反应的溶剂。