Naphtho[2,3-b]thiophene-3-ol,9-chloro-2-(3-hydroxybenzo[b]thien-2-yl)-, bis(hydrogen sulfate) (8CI);Naphtho[2,3-b]thiophene-3-ol, 9-chloro-2-[3-(sulfooxy)benzo[b]thien-2-yl]-,hydrogen sulfate (9CI)
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