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单词 butyl
释义 bu·tyl
\ˈbyüd.əl, -ütəl, -üˌtil\ noun
(-s)
Etymology: International Scientific Vocabulary but- + -yl
: any of four isomeric alkyl radicals C4H9 derived from butane and isobutane:
 a. : the normal radical CH3CH2CH2CH2 — called also n-butyl
 b. : the secondary radical CH3CH2CH(CH3)− — called also sec-butyl
 c. : the tertiary radical (CH3)3C− — called also tert-butyl
 d. : isobutyl
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