3,4-Diaminobenzenesulfonic acid Chemical Properties

Melting point:

-12 °C

Boiling point:

178-179 °C3 mm Hg(lit.)

Density 

0.936 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.441(lit.)

Flash point:

>230 °F

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

hexane, toluene, ethanol and acetone: soluble

pka

-0.52±0.50(Predicted)

form 

Solid

color 

Dark Brown

Dielectric constant

4.5（30℃）

CAS DataBase Reference

7474-78-4(CAS DataBase Reference)

EPA Substance Registry System

Benzenesulfonic acid, 3,4-diamino- (7474-78-4)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

1

RTECS 

VS1150000

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

3,4-Diaminobenzenesulfonic acid Usage And Synthesis

Uses

3,4-Diaminobenzenesulfonic Acid is a useful organic synthetic reagent and a sulfonate-aminium zwitterion.

3,4-Diaminobenzenesulfonic acid(7474-78-4)Related Product Information

• 4-Amino-benzenesulfonic acid monosodium salt
• Aniline-2-sulfonic acid
• 4-Aminobenzoic acid
• Sulfanilic acid
• Aniline
• Metanilic acid
• Anthranilic acid
• 2,4-DIAMINOBENZENESULFONIC ACID,1,3-DIAMINOBENZENESULFONIC ACID
• 2,5-DIAMINOBENZENESULFONIC ACID,2,5-DIAMINOBENZENESULFONIC ACID, TECH., 90%
• 2-NITROANILINE-4-SULFONIC ACID SODIUM SALT
• Congo Red
• BENZOPURPURIN 4B
• Sodium 2-aminosulphanilate
• 2-Nitroaniline-4-sulfonic acid
• Direct Red 13
• Acid Yellow 199
• Acid Orange 67
• 4-(4-Aminoanilino)-3-nitrobenzenesulphonic acid