英语词汇“girard reagent”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	girard reagent
释义	gi·rard reagent \jə̇ˈrärd-\ noun or gi·rard's reagent \-dz-\ Usage: usually capitalized G Etymology: after André Girard, 20th century French chemist : any of several hydrazides that contain a quaternary ammonium radical and are useful especially in separating aldehydes or ketones (as some steroid hormones) from mixtures by forming soluble hydrazones: as a. : a crystalline compound (CH₃)₃N(Cl)CH₂CONHNH₂ derived from trimethylamine or betaine — called also Girard T reagent b. : a crystalline compound C₅H₅N(Cl)CH₂CONHNH₂ derived from pyridine — called also Girard P reagent
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