2-Mercaptopyridine is an organosulfur compound with the formula HSC5H4N. This yellow crystalline solid is a derivative of pyridine. The compound and its derivatives serve primarily as acylating agents. A few of 2-mercaptopyridine’s other uses include serving as a protecting group for amines and imides as well as forming a selective reducing agent. 2-Mercaptopyridine oxidizes to 2,2’-dipyridyl disulfide.

CAS：2637-34-5
中文别名：吡啶-2(1H)-硫酮;2-吡啶硫醇;
英文别名：2-mercapto-pyridine;thiopyridone-2;2(1H)-Pyridinethione;2-Pyridinethiol,2-Pyridyl mercaptan;pyridine-2(1H)-thione;mercaptopyridine;WR 608;pyridine-2-thio;2-pyridinethiol;2-pyridinylthiol;2-Pyridinethiol;pyridine-2-thiol;2-Pyridyl Mercaptan;2-Thiopyridone;Pyrid-2-thione;Alrithiol-2;2-Thiopyridine;
分子式：C5H5NS
分子量：111.165
精确质量：111.014
Psa：51.69
Logp：1.3703

BRN号：105758
EINECS号：220-131-9
RTECS号：UT9600000
MDL号：MFCD00006285

密度：1.2g/cm3
沸点：184.9ºC at 760 mmHg
熔点：127-130°C(lit.)
闪点：125°C
折射率：1.653
水溶解性：50 g/L (20 ºC)
稳定性：Stable. Incompatible with strong bases, strong oxidizing agents.
储存条件：2-8°C
蒸汽压：0.716mmHg at 25°C

RTECS号：UT9600000
安全说明：S26-S36-S28A-S22
危险类别码：R22; R36/38
WGK Germany：3
海关编码：2933399090
危险品标志：Xn
危险性防范说明：P261; P305 + P351 + P338
危险性描述：H315; H319; H335
信号词：Warning
危险标志：GHS07

用途
有机合成中间体。