Indigo

Indigo (ISP. indigo, lot. indicum, Yun. indicos — hindcha, qindniki), [(bis- (Z-okso-2 indolinilidei), 2,2 – bis- indolindigo] — ko’k-qizg’ish rangli kristall, 390-392° da parchalanish b-n eriydi, nitrobenzol, anilin, xloro- form, … Batafsil

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