indigodisulfonic acid

indigodisulfonic acid
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Etymology: indigodisulfonic International Scientific Vocabulary indigo + disulfonic
: a water-soluble disulfonic acid C16H8N2O2(SO3H)2 obtained by treating indigo with concentrated sulfuric acid — called also indigo extract, 5,5′-indigotindisulfonic acid

Useful english dictionary. 2012.

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  • indigotindisulfonic acid — “+... noun Etymology: indigotindisulfonic from indigotin + disulfonic : indigodisulfonic acid …   Useful english dictionary

  • 5,5′-indigotindisulfonic acid — noun see indigodisulfonic acid …   Useful english dictionary

  • Indigo carmine — Chembox new ImageFile = Indigotine.png ImageSize = ImageFile1 = Indigo carmine 3D balls.png ImageSize1 = IUPACName = A name could not be generated for this structure. OtherNames = 5,5 indigodisulfonic acid sodium salt Section1 = Chembox… …   Wikipedia

  • indigo carmine — noun 1. : a soluble blue dye that is the sodium salt of indigodisulfonic acid and is used chiefly as a biological stain and food color but is no longer used to any extent as a textile dye called also Indigotine IA 2. : a strong greenish blue that …   Useful english dictionary

  • indigo extract — noun 1. : indigodisulfonic acid 2. : indigo carmine …   Useful english dictionary

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