请解释一下「羟丙茶碱」这个词的含义。

助手
羟丙茶碱 qiǎng bǐng chá jiǎn · ㄑㄧㄤˇ ㄅㄧㄥˇ ㄔㄚˊ ㄐㄧㄢˇ
qiang bing cha jian
qbcj
ㄑㄧㄤ ㄅㄧㄥ ㄔㄚ ㄐㄧㄢ
2026-07-15 21:32:28

扩展释义

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...