naphthalenedisulfonic acid

noun
naph·​tha·​lene·​disulfonic acid | \"+...-\

Definition of naphthalenedisulfonic acid 

: any of several disulfonic acids C10H6(SO3H)2 derived from naphthalene and used especially in the form of hydroxy and amino derivatives (as chromotropic acid, H acid, G acid, R acid) as dye intermediates

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History and Etymology for naphthalenedisulfonic acid

naphthalene + disulfonic

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