4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt
CAS 6745-67-1 · C36H31N13Na2O7S2 · 867.82 g/mol
![Structure of 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt](https://chemsigma.com/chemicalStructure/67/6745-67-1.png)
Basic information
| CAS number | 6745-67-1 |
|---|---|
| Product name | 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt |
| Chinese name | 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt |
| Synonyms | 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt; C.I.35260; C.I.Direct Black 28; Columbia Fast Black V; Cutamin Black CV; Rayon Black R |
| Molecular formula | C36H31N13Na2O7S2 |
| Molecular weight | 867.82 g/mol |
Certificate of Analysis
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Properties & storage
| Refractive index | 1.795 |
|---|