单词 | heptane |
释义 | Word Frequency heptane(ˈhɛpteɪn) noun an alkane existing in nine isomeric forms, esp the isomer with a straight chain of carbon atoms (n-heptane), which is found in petroleum and used as an anaesthetic. Formula: C7H16 Word origin C19: from hepta- + -ane, so called because it has seven carbon atoms |
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