5,5′-indigotindisulfonic acid
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indigotindisulfonic acid — “+... noun Etymology: indigotindisulfonic from indigotin + disulfonic : indigodisulfonic acid … Useful english dictionary
indigodisulfonic acid — | ̷ ̷ ̷ ̷(ˌ) ̷ ̷+... noun 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… … Useful english dictionary
