5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid

Basic Information

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CAS Number

119-70-0

Molecular Formula

C12H13N3O3S

Molecular Weight

279.32 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Basic Physical Properties

Melting Point

244 ºC

Density

1.527

Refractive Index

1.726

SMILES

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C1=CC(=CC=C1N)NC2=C(C=C(C=C2)N)S(=O)(=O)O

InChI

InChI=1S/C12H13N3O3S/c13-8-1-4-10(5-2-8)15-11-6-3-9(14)7-12(11)19(16,17)18/h1-7,15H,13-14H2,(H,16,17,18)

InChIKey

VKURVCNKVWKGLX-UHFFFAOYSA-N

LogP

1.8413

Topological Polar Surface Area

118.44 Å²

Hydrogen Bond Donor/Acceptor

6 / 6

Complexity

388

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

Diphenylamine-2-sulfonic acid, 4,4'-diamino-
Diphenylamine-2-sulfonic acid,4'-diamino-
EINECS 204-344-4
NSC5622
AKOS003237016
5-Amino-2-(p-aminoanilino)benzenesulphonic acid
97675-30-4
Benzenesulfonic acid, 5-amino-2-((4-aminophenyl)amino)-
AC-10920
SR-01000636328-2
FT-0617297
119-70-0
LS-07336
NSC 4706
Benzenesulphonic acid, 5-amino-2-(p-aminoanilino)-
DTXSID1059492
5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid
4-(p-Aminoanilino)-3-sulfoaniline
W-108500
6-(p-Aminoanilino)metanilic acid
4,4'-Diaminodiphenylamine-2-sulfonic acid
NSC4706
MFCD00025301
5-Amino-2-((4-aminophenyl)amino)benzenesulfonicacid
Benzenesulphonic acid, 5-amino-2-((4-aminophenyl)amino)-
5-amino-2-[(4-aminophenyl)amino]benzene-1-sulfonic acid
NSC-4706
5-Amino-2-(p-aminoanilino)benzenesulfonic acid
Benzenesulfonic acid, 5-amino-2-[(4-aminophenyl)amino]-
CCG-46643
AI3-23227

MDL Number

MFCD00025301

Customs Code

2921590090

FAQ

What is 5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid (CAS: 119-70-0)?

5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid, also known as disulfanilic acid, is an organic compound with the CAS number 119-70-0. It is a solid with a molecular weight of approximately 274.27 g/mol and a pKa of about 9.25. This compound is characterized by its basic nature and has a melting point of around 240-242°C.

What are the main uses of 5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid (CAS: 119-70-0)?

5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid is widely used as a chemical intermediate in the production of dyes and pharmaceuticals. It also serves as a reagent in research applications, particularly in the synthesis of other compounds and as an analytical reagent.

Is 5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid (CAS: 119-70-0) safe?

5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid is generally safe when handled with proper precautions. However, it can cause skin and eye irritation. It is important to wear appropriate personal protective equipment such as gloves and safety goggles when handling the compound. Ensure adequate ventilation and avoid inhalation of dust and fumes.

How should 5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid (CAS: 119-70-0) be stored?

5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid should be stored in tightly sealed containers in a cool, dry place, away from direct sunlight and heat sources. It should be kept at a temperature not exceeding 25°C and should be protected from moisture and humidity to prevent degradation. Optimal storage conditions will help maintain the compound's stability and purity.