C.I. Direct Yellow 4
5-[(4-hydroxyphenyl)diazenyl]-2-[2-[4-[(4-hydroxyphenyl)diazenyl]-2-sulfophenyl]ethenyl]benzenesulfonic acid
Also Known As: Direct Yellow 4, Direct Yellow 4 dye, C.I. DIRECT YELLOW 4, CCRIS 771, CTK5G9398, EINECS 202-062-6, C.I. Direct Yellow 4 (VAN), 4,4'-bis[azo]stilbene-2,2'-disulphonicacid, Calcomine Brilliant Paper Yellow (*disodium salt*), 4,4'-bis[(4-hydroxyphenyl)azo]stilben-2,2'-disulfonsyre, 4,4'-BIS[(4-HYDROXYPHENYL)AZO]STILBENE-2,2'-DISULPHONIC ACID, 4,4'-Bis((4-hydroxyphenyl)azo)stilbene-2,2'-disulphonic acid, 4,4'-Bis-(4-hydroxy-phenylazo)-stilben-2,2'-disulfonsaeure, Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-((4-hydroxyphenyl)azo)-, 5-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]-2-[2-[4-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]-2-sulfophenyl]ethenyl]benzenesulfonic acid
| Molecular Formula | C26H20N4O8S2 |
|---|---|
| Molecular Weight | 580.07227 g/mol |
| LogP | 6.59 |
| Topological Polar Surface Area | 198.64 Ų |
| Hydrogen Bond Donors | 4 |
| Hydrogen Bond Acceptors | 10 |
| Rotatable Bonds | 8 |
| Exact Mass | 580.07227 |
| Heavy Atoms | 40 |
| Complexity | 1715 |
Chemical Identifiers
| CAS Number | 91-34-9 |
|---|---|
| SMILES | C1=CC(=CC=C1N=NC2=CC(=C(C=C2)C=CC3=C(C=C(C=C3)N=NC4=CC=C(C=C4)O)S(=O)(=O)O)S(=O)(=O)O)O |
Product Overview
C.I. Direct Yellow 4 (CAS 91-34-9), with molecular formula C26H20N4O8S2 and molecular weight 580.07227 g/mol. IUPAC: 5-[(4-hydroxyphenyl)diazenyl]-2-[2-[4-[(4-hydroxyphenyl)diazenyl]-2-sulfophenyl]ethenyl]benzenesulfonic acid.
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