C.I. Food Black 2

tetrasodium;6-amino-4-hydroxy-3-[[7-sulfinato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1-yl]diazenyl]naphthalene-2,7-disulfonate

Also Known As: C.I. Food Black 2|Food black 2|EINECS 218-326-9|CI 27755|tetrasodium;6-amino-4-hydroxy-3-[[7-sulfinato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1-yl]diazenyl]naphthalene-2,7-disulfonate|2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-((7-sulfo-4-((4-sulfophenyl)azo)-1-naphthalenyl)azo)-, tetrasodium salt|Tetrasodium 6-amino-4-hydroxy-3-((7-sulphonato-4-((4-sulphonatophenyl)azo)-1-naphthyl)azo)naphthalene-2,7-disulphonate|2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-((7-sulfo-4-((sulfophenyl)azo)-1-naphthalenyl- )azo)-, tetrasodium salt|2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, tetrasodium salt|Tetrasodium 6-amino-4-hydroxy-3-((7-sulfo-4-((4-sulfophenyl)azo)-1-naphthalen- yl)azo-2,7-naphthalenedisulfonate)|2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-(2-(7-sulfo-4-(2-(4-sulfophenyl)diazenyl)-1-naphthalenyl)diazenyl)-, sodium salt (1:4)|2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[[7-sulfo- 4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, tetrasodium salt|2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-7-sulfo-4-(4-sulfophenyl)azo-1-naphthalenylazo-, tetrasodium salt|tetrasodium (3E)-6-amino-4-oxo-3-[[7-sulfinato-4-(4-sulfonatophenyl)azo-1-naphthyl]hydrazono]naphthalene-2,7-disulfonate|tetrasodium (3Z)-6-amino-4-oxo-3-[[7-sulfinato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1-yl]hydrazinylidene]naphthalene-2,7-disulfonate|Tetrasodium 6-amino-4-hydroxy-3-[(E)-{7-sulfinato-4-[(E)-(4-sulfonatophenyl)diazenyl]naphthalen-1-yl}diazenyl]naphthalene-2,7-disulfonate

Molecular Formula	C26H15N5Na4O12S4
Molecular Weight	808.91907 g/mol
LogP	-7.92
Topological Polar Surface Area	307.42 Ų
Hydrogen Bond Donors	2
Hydrogen Bond Acceptors	17
Rotatable Bonds	8
Exact Mass	808.91907
Heavy Atoms	51
Complexity	2558.4

Chemical Identifiers

CAS Number	2118-39-0
SMILES	C1=CC(=CC=C1N=NC2=C3C=CC(=CC3=C(C=C2)N=NC4=C(C5=CC(=C(C=C5C=C4S(=O)(=O)[O-])S(=O)(=O)[O-])N)O)S(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]