| 英文名称: | | 7-naphthalenedisulfonic acid, 3-hydroxy-4-[(4-sulfo-1-naphthalenyl)azo]- tri | | sodium salt, complex with vinylpyrrolidone polymer | | 2,7-naphthalenedisulfonic acid,3-hydroxy-4-[(4-sulfo-1-naphthalenyl)azo]-, trisodium salt, complexwith vinylpyrrolidone polymer |
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