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US 4,061,627 AGranted
Bis-substituted naphthalene-azo phenyleneazo-stilbene-disulfonic and naphthalene-sulfonic acid
AssigneeAmerican Cyanamid Company
InventorsRansom Brown Conrow, Seymour Bernstein, Norman Bauman
Life of this patent
Estimating the term…
Abstract
Bis-substituted naphthylazo - and phenyleneazo - stilbenedisulfonic and naphthalenesulfonic acid salts useful as complement inhibitors.
Claims3
4,4'-b is(2-amino-8-hydroxy-6-sulfo-2-naphthylazo)-2,2'-stilbenedisulfonic acid tetrasodium salt.
5,5'-[oxybis-(2-amino-p-phenyleneazo)]bis-[6-amino-2-naphthalenesulfonic acid] disodium salt.
5,5'-[oxybis-(2-nitro-p-phenyleneazo)]bis-]6-amino-2-naphthalenesulfonic acid] disodium salt.
Dependencies are inferred from the claim text.