羟丙茶碱
qiǎng bǐng chá jiǎn
ㄑㄧㄤˇ ㄅㄧㄥˇ ㄔㄚˊ ㄐㄧㄢˇ
📖 词语释义
- 拼音字母qiang bing cha jian
- 首字母qbcj
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- 更新2026-07-15 22:22:54
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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...