Molecular formula
C32H24N6NaO6S2+

SMILES
C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)O)N)S(=O)(=O)O.[Na+]

Fragrance
Odorless	67.29%
Cooked	26.22%
Grape	24.23%
Fruity	22.46%
Bitter	21.74%
Savory	20.69%
Burnt	18.65%
Meaty	18.16%
Roasted	17.56%
Milky	14.68%

 

Flavor
Bitter	91.21%
Odorless	31.03%
Nitrile	20.57%
Bland	19.4%
Very strong	19.07%
Indole	18.65%
Bread crust	18.01%
Taco	17.87%
Moth ball	17.71%
Rotten	17.52%

 

Odor impact est.
Odorless

pKa est.
4.83 (weak acid)

Molecular weight
675.7 g/mol

Vapor pressure est.

• hPa @ 20°C
• hPa @ 25°C

Evaporation rate
Slow

Boiling point est.
1782°C

Flash point

• 445.7 ˚C est.

• Direct Red-28
• Benzo Congo Red
• Direct Red C
• Congo Red RS
• Congo Red ICI
• Sodium diphenyldiazo-bis(alpha-naphthylaminesulfonate)
• NSC7232
• sodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonic acid
• Sodium diphenyldiazo-bis(.alpha.-naphthylaminesulfonate)
• WLN: L66J BZ ESWQ CNUNR DR DNUN- CL66J BZ ESWQ &-NA- 2
• 1-Naphthalenesulfonic acid,3'-[4,4'-biphenylenebis(azo)]bis[4-amino-, disodium salt
• 1-Naphthalenesulfonic acid,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[4-amino-, disodium salt
• NSC56651

Benzo Congo Red is primarily used as a dye/colorant in textile dyeing and printing, with applications in dyeing synthetic fibers and leather and in ink formulations and coatings to deliver uniform, durable color; additionally, the compound may be employed as a pigment for plastics and rubber in the polymers/plastics sector and can serve as an intermediate or precursor in the synthesis of other azo dyes and color formulations; in the industrial chemicals field, it is used for formulation development and color assessment, with use subject to local regulations and formulation limits.

gpt-5-nano

Solvent	Solubility (g/L)
ethanol	0.08
methanol	0.24
isopropanol	0.04
water	0.0
ethyl acetate	0.03
n-propanol	0.06
acetone	0.1
n-butanol	0.03
acetonitrile	0.04
DMF	2.38
toluene	0.01
isobutanol	0.02
1,4-dioxane	0.32
methyl acetate	0.08
THF	1.04
2-butanone	0.12
n-pentanol	0.02
sec-butanol	0.03
n-hexane	0.0
ethylene glycol	0.17
NMP	1.9
cyclohexane	0.0
DMSO	1.09
n-butyl acetate	0.02
n-octanol	0.01
chloroform	0.06
n-propyl acetate	0.03
acetic acid	0.26
dichloromethane	0.06
cyclohexanone	0.13
propylene glycol	0.18
isopropyl acetate	0.02
DMAc	1.88
2-ethoxyethanol	0.31
isopentanol	0.01
n-heptane	0.0
ethyl formate	0.08
1,2-dichloroethane	0.03
n-hexanol	0.01
2-methoxyethanol	0.93
isobutyl acetate	0.01
tetrachloromethane	0.0
n-pentyl acetate	0.04
transcutol	0.5
n-heptanol	0.02
ethylbenzene	0.0
MIBK	0.02
2-propoxyethanol	0.28
tert-butanol	0.02
MTBE	0.02
2-butoxyethanol	0.23
propionic acid	0.12
o-xylene	0.01
formic acid	0.64
diethyl ether	0.02
m-xylene	0.0
p-xylene	0.0
chlorobenzene	0.01
dimethyl carbonate	0.13
n-octane	0.0
formamide	0.81
cyclopentanone	0.55
2-pentanone	0.05
anisole	0.03
cyclopentyl methyl ether	0.06
gamma-butyrolactone	0.71
1-methoxy-2-propanol	0.45
pyridine	0.32
3-pentanone	0.04
furfural	0.92
n-dodecane	0.0
diethylene glycol	0.32
diisopropyl ether	0.0
tert-amyl alcohol	0.02
acetylacetone	0.1
n-hexadecane	0.0
acetophenone	0.04
methyl propionate	0.07
isopentyl acetate	0.02
trichloroethylene	0.1
n-nonanol	0.02
cyclohexanol	0.02
benzyl alcohol	0.04
2-ethylhexanol	0.01
isooctanol	0.01
dipropyl ether	0.03
1,2-dichlorobenzene	0.01
ethyl lactate	0.06
propylene carbonate	0.13
n-methylformamide	0.76
2-pentanol	0.01
n-pentane	0.0
1-propoxy-2-propanol	0.16
1-methoxy-2-propyl acetate	0.09
2-(2-methoxypropoxy) propanol	0.16
mesitylene	0.0
ε-caprolactone	0.15
p-cymene	0.0
epichlorohydrin	0.48
1,1,1-trichloroethane	0.01
2-aminoethanol	0.18
morpholine-4-carbaldehyde	2.05
sulfolane	1.05
2,2,4-trimethylpentane	0.0
2-methyltetrahydrofuran	0.12
n-hexyl acetate	0.03
isooctane	0.0
2-(2-butoxyethoxy)ethanol	0.26
sec-butyl acetate	0.01
tert-butyl acetate	0.02
decalin	0.0
glycerin	0.72
diglyme	0.67
acrylic acid	0.26
isopropyl myristate	0.01
n-butyric acid	0.07
acetyl acetate	0.03
di(2-ethylhexyl) phthalate	0.02
ethyl propionate	0.03
nitromethane	0.63
1,2-diethoxyethane	0.08
benzonitrile	0.03
trioctyl phosphate	0.01
1-bromopropane	0.01
gamma-valerolactone	1.73
n-decanol	0.01
triethyl phosphate	0.02
4-methyl-2-pentanol	0.0
propionitrile	0.03
vinylene carbonate	0.16
1,1,2-trichlorotrifluoroethane	1.09
DMS	0.06
cumene	0.0
2-octanol	0.01
2-hexanone	0.03
octyl acetate	0.02
limonene	0.0
1,2-dimethoxyethane	0.52
ethyl orthosilicate	0.02
tributyl phosphate	0.01
diacetone alcohol	0.08
N,N-dimethylaniline	0.02
acrylonitrile	0.11
aniline	0.04
1,3-propanediol	0.2
bromobenzene	0.01
dibromomethane	0.02
1,1,2,2-tetrachloroethane	0.09
2-methyl-cyclohexyl acetate	0.02
tetrabutyl urea	0.04
diisobutyl methanol	0.0
2-phenylethanol	0.03
styrene	0.01
dioctyl adipate	0.03
dimethyl sulfate	0.28
ethyl butyrate	0.03
methyl lactate	0.22
butyl lactate	0.08
diethyl carbonate	0.02
propanediol butyl ether	0.22
triethyl orthoformate	0.04
p-tert-butyltoluene	0.0
methyl 4-tert-butylbenzoate	0.08
morpholine	0.55
tert-butylamine	0.01
n-dodecanol	0.01
dimethoxymethane	0.59
ethylene carbonate	0.08
cyrene	0.29
2-ethoxyethyl acetate	0.12
2-ethylhexyl acetate	0.01
1,2,4-trichlorobenzene	0.02
4-methylpyridine	0.11
dibutyl ether	0.02
2,6-dimethyl-4-heptanol	0.0
DEF	0.15
dimethyl isosorbide	0.3
tetrachloroethylene	0.06
eugenol	0.12
triacetin	0.09
span 80	0.13
1,4-butanediol	0.05
1,1-dichloroethane	0.01
2-methyl-1-pentanol	0.01
methyl formate	0.51
2-methyl-1-butanol	0.02
n-decane	0.0
butyronitrile	0.02
3,7-dimethyl-1-octanol	0.01
1-chlorooctane	0.0
1-chlorotetradecane	0.0
n-nonane	0.0
undecane	0.0
tert-butylcyclohexane	0.0
cyclooctane	0.0
cyclopentanol	0.06
tetrahydropyran	0.08
tert-amyl methyl ether	0.02
2,5,8-trioxanonane	0.39
1-hexene	0.0
2-isopropoxyethanol	0.1
2,2,2-trifluoroethanol	0.16
methyl butyrate	0.04

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