外觀性質(zhì)白色片狀結(jié)晶。在257～260℃分解。溶于水、稀酸和稀堿溶液，不溶于乙醚。最小致死量（大鼠，經(jīng)口）500mg/kg。有致癌的可能性。熔點：265-268℃

熔點265-268 °C

比旋光度[α]D20 0±0.5° (c=5, dil. HCl)

沸點310℃

密度1.164

折射率1.5500 (estimate)

閃點142℃

儲存條件−20°C

酸度系數(shù)(pKa)2.23±0.10(Predicted)

形態(tài)結(jié)晶粉末或薄片

顏色白色至灰白色

水溶解性易溶于水。

Merck14,3738

BRN1722529

警示詞警告

WGK Germany3

RTECS號ES6825200

TSCAYes

海關(guān)編碼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.