67-21-0

外观性质白色片状结晶。在257～260℃分解。溶于水、稀酸和稀碱溶液，不溶于乙醚。最小致死量（大鼠，经口）500mg/kg。有致癌的可能性。熔点：265-268℃

熔点265-268 °C

比旋光度[α]D20 0±0.5° (c=5, dil. HCl)

沸点310℃

密度1.164

折射率1.5500 (estimate)

闪点142℃

储存条件−20°C

酸度系数(pKa)2.23±0.10(Predicted)

形态结晶粉末或薄片

颜色白色至灰白色

水溶解性易溶于水。

Merck14,3738

BRN1722529

警示词警告

WGK Germany3

RTECS号ES6825200

TSCAYes

海关编码29309090

毒性The Sethyl analog of methionine. It is a carcinogen and hepatotoxic agent once proposed as an antineoplastic agent. It inhibits the incorporation of methionine and glycine into proteins and substitutes for methionine in transmethylation reactions, the ethyl group appearing in the products in place of the methyl groups of methionine (e.g., ethylcholine is formed instead of choline). Ethionine is currently used only as an experimental compound in studies of hepatotoxicity and methionine metabolism and nutrition.