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单词 2-naphthol
释义

WordReference Random House Unabridged Dictionary of American English © 2024
2-naph•thol  (to̅o̅nafthôl, -thol, -nap-),USA pronunciation n. Chem.
  1. beta-naphthol. See under naphthol. 

WordReference Random House Unabridged Dictionary of American English © 2024
naph•thol  (nafthôl, -thol, nap-),USA pronunciation n. [Chem.]
  1. Chemistryeither of two isomeric hydroxyl derivatives, C10H7OH, of naphthalene (alpha-naphthol or 1-naphthol and beta-naphthol or 2-naphthol), white or yellowish crystals, with a phenolic odor, that darken on exposure to light: used chiefly in dyes, drugs, perfumes, and insecticides. Also called hydroxynaphthalene. 
  • naphth- + -ol1 1840–50

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更新时间:2024/9/20 1:05:46