4'-aminoazobenzene-4-sulfonic acid CAS 104-23-4

4'-aminoazobenzene-4-sulfonic acid - Names and IdentifiersName4'-aminoazobenzene-4-sulfonic aci

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4'-aminoazobenzene-4-sulfonic acid - Names and Identifiers

Name	4'-aminoazobenzene-4-sulfonic acid
Synonyms	PAABSA C.I. Food Yellow 6 C.I. 13011 (Free acid) 4-Aminoazobenzene-4-sulfonic acid P-AMINOAZOBENZENE-4'-SULFONIC ACID 4'-aminoazobenzene-4-sulfonic acid 4-Aminoazobenzene-4'-sulfonic acid 4'-Aminoazobenzene-4-sulphonic acid Para amino azo benzene 4 sulphonic acid 4-(4-Aminophenylazo)benzenesulfonic acid 4-((4-aminophenyl)azo)-benzenesulfonicaci 4-[(4'-SULFOPHENYL)AZO]ANILINE SODIUM SALT PARA AMINOAZOBENZENE-4-SULFONIC ACID (PAAB4SA) 4-((4-aminophenyl)diazenyl)benzenesulfonic acid (4-ANILINOAZO)BENZENE-4-SULFONIC ACID SODIUM SALT 4-[(E)-(4-aminophenyl)diazenyl]benzenesulfonic acid sodium 4-[(E)-(4-aminophenyl)diazenyl]benzenesulfonate potassium 4-[(E)-(4-aminophenyl)diazenyl]benzenesulfonate 4-(4-Amino-phenylazo)-benzenesulfonic acid anion SODIUM SALT
CAS	104-23-4
EINECS	203-187-9
InChI	InChI=1/C12H11N3O3S/c13-9-1-3-10(4-2-9)14-15-11-5-7-12(8-6-11)19(16,17)18/h1-8H,13H2,(H,16,17,18)

4'-aminoazobenzene-4-sulfonic acid - Physico-chemical Properties

Molecular Formula	C12H11N3O3S
Molarmassa	277.3
Täthet	1.3764 (rough estimate)
Boling Point	477.42℃[at 101 325 Pa]
Vattenlöslighet	513-1320mg/L at 37℃
Solubility	345.945mg/L in organic solvents at 20 ℃
Vapor Presure	0-0Pa at 25℃
pKa	-1.10±0.50(Predicted)
Refractive Index	1.6630 (estimate)
Use	Used as a dye intermediate

4'-aminoazobenzene-4-sulfonic acid - Reference Information

LogP	-0.352 at 37℃
EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Ansökan	p-aminoazophenyl-4-sulfonic acid is a carboxylic acid derivative that can be used as a dye intermediate.
Use	use as dye intermediate
category	toxic substances
flammability hazard characteristics	flammability; Toxic nitrogen oxide and sulfur oxide fumes from combustion
storage and transportation characteristics	warehouse ventilation and low temperature drying
extinguishing agent	dry powder, foam, sand, carbon dioxide, water mist

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