4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid

Modify Date: 2024-04-03 14:15:23

4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid Structure
4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid structure
Common Name 4,4'-bis[(4-hydroxyphenyl)azo]stilbene-2,2'-disulphonic acid
CAS Number 91-34-9 Molecular Weight 580.58900
Density 1.5g/cm3 Boiling Point N/A
Molecular Formula C26H20N4O8S2 Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name 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
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.5g/cm3
Molecular Formula C26H20N4O8S2
Molecular Weight 580.58900
Exact Mass 580.07200
PSA 208.42000
LogP 5.58400
Index of Refraction 1.691

 Synonyms

Direct Yellow 4 dye
Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis(5-((4-hydroxyphenyl)azo)
C.I. DIRECT YELLOW 4
4,4'-Bis-(4-hydroxy-phenylazo)-stilben-2,2'-disulfonsaeure
(Stilben-disulfonsaeure-(2.2'))-4.4'-bis-[(azo 4)-phenol]
4,4'-Bis((4-hydroxyphenyl)azo)stilbene-2,2'-disulphonic acid
4,4'-bis-(4-hydroxy-phenylazo)-stilbene-2,2'-disulfonic acid
EINECS 202-062-6
Brillantgelb
4,4'-Bis-(4-hydroxy-benzolazo)-stilbendisulfonsaeure-(2,2')