英语词汇“naphthol AS”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	naphthol AS
释义	naphthol AS noun Usage: usually capitalized N Etymology: German naphthol AS, from naphthol + AS, from anilid anilide + säure acid 1. : a crystalline phenolic anilide HOC₁₀H₆CONHC₆H₅ used as a coupling component for azoic dyes; the anilide of 3-hydroxy-2-naphthoic acid — see dye table I (under Azoic Coupler 2) 2. : any of a series of arylides of either ortho-hydroxy aromatic carboxylic acids (as 3-hydroxy-2-naphthoic acid) or acyl derivatives (as acetoacetic acid) of acetic acid used as coupling components for azoic dyes — see dye table I (under Azoic Coupler)
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