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Gold Suppliers > Kelco Chemicals Co.,Ltd.
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Featured Products
  • inquireDirect Black 80
    CAS NO : 8003-69-8;   MF : C36H23N8Na3O11S3

    ;;C.I. Direct Black 80;trisodium 5-amino-8-[(E)-{4-[(2Z)-2-{7-[(2Z)-2-(7-amino-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene)hydrazinyl]-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene}hydr... >>>

  • inquireDirect Black 154
    CAS NO : 37372-50-2;   MF : C36H29N9Na2O7S2

    ;disodium (3Z)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]-3,3'-dimethylbiphenyl-4-yl}diazenyl]-4-oxo-3-(2-phenylhydrazinylidene)-3,4-dihydronaphthalene-2,7-disulfonate;... >>>

  • inquireDirect Black 166
    CAS NO : 57131-19-8;   MF : C35H26N10Na2O8S2

    2,7-Naphthalenedisulfonic acid, 4-amino-3-(2-(4-(((4-(2-(2,4-diaminophenyl)diazenyl)phenyl)amino)carbonyl)phenyl)diazenyl)-5-hydroxy-6-(2-phenyldiazenyl)-, sodium salt (1:2);2,7-N... >>>

  • inquireDirect Black 168
    CAS NO : 85631-88-5;   MF : C34H24N9Na3O11S3

    ;Direct Black SB;trisodium (3E)-5-amino-6-{(E)-[4-({4-[(2E)-2-(2-amino-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]phenyl}amino)-3-sulfonatophenyl]diazenyl}-4-oxo-3-(2-phenylhydr... >>>

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