Colour Index Database

Colour Index

  • Name   CAS No.   C.I. No.
Name: Direct Blue 218
CAS: 28407-37-6
C.I. No.: C.I. 24401
Synonyms C.I. 24401; C.I. Direct Blue 218; Direct Blue 218
Molecular Formula C32H16Cu2N6Na4O16S4
Molecular Weight 1087.8111
InChI InChI=1/C32H24N6O16S4.2Cu.4Na/c33-19-11-17(55(43,44)45)5-15-9-25(57(49,50)51)29(31(41)27(15)19)37-35-21-3-1-13(7-23(21)39)14-2-4-22(24(40)8-14)36-38-30-26(58(52,53)54)10-16-6-18(56(46,47)48)12-20(34)28(16)32(30)42;;;;;;/h1-12,39-42H,33-34H2,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;;;/q;2*+2;4*+1/p-8/b37-35-,38-36-;;;;;;/rC32H20Cu2N6O16S4.4Na/c35-19-11-17(57(41,42)43)5-15-9-25(59(47,48)49)29-31(27(15)19)55-33-53-23-7-13(1-3-21(23)37-39-29)14-2-4-22-24(8-14)54-34-56-32-28-16(6-18(12-20(28)36)58(44,45)46)10-26(60(50,51)52)30(32)40-38-22;;;;/h1-12H,35-36H2,(H,41,42,43)(H,44,45,46)(H,47,48,49)(H,50,51,52);;;;/q;4*+1/p-4/b39-37-,40-38-;;;;
CAS Registry Number 28407-37-6
EINECS 249-008-8
Molecular Structure 28407-37-6 tetrasodium [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-)
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