theophylline

柯林斯词典

theophylline /ˌθɪəˈfɪliːn, -ɪn, θɪˈɒfɪlɪn/

• 1. N a white crystalline slightly water-soluble alkaloid that is an isomer of theobromine: it occurs in plants, such as tea, and is used to treat asthma. Formula: C7H8N4O2 茶碱

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