Cysteamine is the chemical compound with the formula HSCH2CH2NH2. It is the simplest stable aminothiol and a degradation product of the amino acid cysteine. It is often used as the hydrochloride salt, HSCH2CH2NH3Cl. The comparatively high melting point of cysteamine (95-97 °C), indicates that it exists in a salt form.

CAS：156-57-0
中文别名：beta-巯基乙胺盐酸盐;β-巯基乙胺盐酸盐;2-氨基乙硫醇盐酸盐;巯乙胺盐酸盐;α-巯基乙胺盐酸盐;2-巯基乙胺盐酸盐;半胱胺 HCL;硫化乙醇胺盐酸盐;
英文别名：Decarboxycysteine hydrochloride;Thioethanolamine hydrochloride;CYSTEAMINE HCL SOLID;Cysteamine Hydrochloride;2-Mercaptoethylamin;β-Mercaptoethylamine hydrochloride;Cysteamine HCl;2-Mercaptoethylamine hydrochloride;thiol hydrochloride;2-mercaptoethanamine hydrochloride;2-amino-ethanethiol hydrochloride;2-mercaptoethylamine hydrochloride;Cysteamine (Hydrochloride);2-Aminoethanethiol hydrochloride;2-AMino&CYSTEAMINE HCL;CYSTEAMINIUM CHLORIDE;2-aminoethylmercaptan hydrochloride;
分子式：C2H8ClNS
分子量：113.61
精确质量：113.007
Psa：64.82
Logp：1.3772

EINECS号：205-858-1
PubChem号：9082
MDL号：MFCD00012904
BRN号：3590083
RTECS号：KJ0200000

外观与性状：白色结晶粉末带有一种强烈的和不愉快的气味
密度：0.75
沸点：116.4ºC at 760 mmHg
熔点：67-71°C
闪点：24.2ºC
水溶解性：VERY SOLUBLE
稳定性：Stable, but hygroscopic. Incompatible with strong oxidizing agents.
储存条件：2-8ºC
蒸汽压：16.7mmHg at 25°C

RTECS号：KJ0200000
安全说明：S36/37/39-S26
WGK Germany：3
危险类别码：R22; R36/37/38
海关编码：2921199090
危险品标志：Xn
危险标志：GHS07
信号词：Warning
危险性描述：H302

用途
雷尼替丁、西米替丁的中间体，也可作扑热息痛中毒的解毒剂。