Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-[2-(3,4-dihydroxyphenyl)diazenyl]-, ammonium salt(1:2)

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Names

[ CAS No. ]:
1571-36-4

[ Name ]:
Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-[2-(3,4-dihydroxyphenyl)diazenyl]-, ammonium salt(1:2)

[Synonym ]:
Diammonium 2,2'-[(E)-1,2-ethenediyl]bis{5-[(E)-(3,4-dihydroxyphenyl)diazenyl]benzenesulfonate}
EINECS 216-389-7
Diammonium 4,4'-bis((3,4-dihydroxyphenyl)azo)stilbene-2,2'-disulphonate
Stilbazo=Spectrophotmetricreagentfor
Benzenesulfonic acid, 2,2'-[(E)-1,2-ethenediyl]bis[5-[(E)-2-(3,4-dihydroxyphenyl)diazenyl]-, diammonium salt
Diammonium 2,2'-(E)-ethene-1,2-diylbis{5-[(E)-(3,4-dihydroxyphenyl)diazenyl]benzenesulfonate}

Chemical & Physical Properties

[ Density]:
1.72 g/cm3

[ Melting Point ]:
77-81 °C

[ Molecular Formula ]:
C26H26N6O10S2

[ Molecular Weight ]:
646.649

[ Exact Mass ]:
646.115173

[ PSA ]:
262.34000

[ LogP ]:
8.81300

[ Index of Refraction ]:
1.767

Safety Information

[ Hazard Codes ]:
Xi

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
26-36/37/39