单词	naphthalenedisulfonic acid
释义	naphthalenedisulfonic acid noun naph·​tha·​lene·​disulfonic 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 Word History Etymology naphthalene + disulfonic
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