掌上团酷

羟丙茶碱的意思

qiǎng bǐng chá jiǎn

羟丙茶碱


拼音qiǎng bǐng chá jiǎn
拼音字母qiang bing cha jian
拼音首字母qbcj

百科含义

Characteristics A white, crystalline powder Complies Identification Positive reaction Complies Loss on drying ≤0.5% 0.20% Melting Point 134~136℃ 134.4~135.5℃ Appearance of solution Clear (2.2.1), Colorless (Method II, 2.2.2) Complies Acidity or alkalinity ≤0.4ml 0.01mol/L NaOH 0.05ml Heavy metals ≤2...

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