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Home › Asymmetric 1:2 chrome complex dye of a phenylazosulphonaphtholamine and a naphtholazosulphonaphthol

Asymmetric 1:2 chrome complex dye of a phenylazosulphonaphtholamine and a naphtholazosulphonaphthol

US Patent 4663441 · Granted May 5, 1987

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