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Home › 2-phenylbenzimidazole-5-sulphonic acid from isolated 3,4-diaminobenzenesulphonic acid and use thereof in cosmetic preparations

2-phenylbenzimidazole-5-sulphonic acid from isolated 3,4-diaminobenzenesulphonic acid and use thereof in cosmetic preparations

US Patent 6888005 · Granted May 3, 2005

Estimated economic value: $441,000 ⓘ

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