2-Amino-1,4-benzenedisulfonic acid

Basic Information

View in Editor

CAS Number

98-44-2

Molecular Formula

C6H7NO6S2

Molecular Weight

253.26 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

Basic Physical Properties

Melting Point

>360°C

Boiling Point

500

Density

1.569 (estimate)

Water Solubility

Slightly soluble in water.

Refractive Index

1.5500 (estimate)

SMILES

View in Editor

C1=CC(=C(C=C1S(=O)(=O)O)N)S(=O)(=O)O

InChI

InChI=1S/C6H7NO6S2/c7-5-3-4(14(8,9)10)1-2-6(5)15(11,12)13/h1-3H,7H2,(H,8,9,10)(H,11,12,13)

InChIKey

LDCCBULMAFILCT-UHFFFAOYSA-N

LogP

-0.23779999999999984

Topological Polar Surface Area

134.76 Å²

Hydrogen Bond Donor/Acceptor

4 / 7

Complexity

416

Safety Information

View Safety Information

GHS Hazard Pictograms

H315

H319

H335

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

Aniline 2,5-disulfonic acid
2-Aminobenzene-1,4-disulphonic acid
AKOS015854615
AS-12819
Kyselina anilin-2,5-disulfonova [Czech]
1-Aminobenzene-2,5-disulfonic acid
CAS-98-44-2
DTXSID8044751
3-14-00-02260 (Beilstein Handbook Reference)
2,5-Disulfo-1-aminobenzene
6-AMINOBENZENE-1,4-DISULFONIC ACID
3-aminobenzene-1,2-disulfonic acid
FT-0607352
2-Amino-p-benzenedisulfonic acid
p-Benzenedisulfonic acid, 2-amino-
C6H7NO6S2
98-44-2
WLN: WSQR BZ DSWQ
aniline 2,5 disulphonic acid
EINECS 202-669-6
LDCCBULMAFILCT-UHFFFAOYSA-N
NSC5580
2,5-disulfoaniline, AldrichCPR
2-Amino-1,4-benzenedisulfonic acid
EC 202-669-6
CHEMBL3184682
2-Aminobenzene-1,4-disulfonic Acid (>90%)
SCHEMBL149375
2-Amino-1,4-disulfobenzene
2-Aminobenzene-1,4-disulfonic acid
Aniline-2,5-disulfonic acid

MDL Number

MFCD00035753

Customs Code

2921499090

FAQ

What are the physical and chemical properties of 2-Amino-1,4-benzenedisulfonic acid (CAS: 98-44-2)?

2-Amino-1,4-benzenedisulfonic acid is a crystalline solid with a molecular weight of approximately 216.18 g/mol. It is slightly soluble in water and is known for its reactivity towards metal ions and its ability to form complexes. This compound exhibits moderate basicity due to the amino group and has a high affinity for sulfuric acid groups.

How is 2-Amino-1,4-benzenedisulfonic acid (CAS: 98-44-2) typically synthesized?

2-Amino-1,4-benzenedisulfonic acid is typically synthesized by the reaction of benzene with sulfur trioxide followed by reaction with ammonia. Commonly, a mixture of benzene, sulfur trioxide, and ammonia is heated under pressure to produce the desired compound. This method provides a good yield and selectivity, although careful handling of the reactants is necessary.

What industries use 2-Amino-1,4-benzenedisulfonic acid (CAS: 98-44-2)?

2-Amino-1,4-benzenedisulfonic acid is widely used in the pharmaceutical industry for the synthesis of various drugs, in the polymer industry for the production of special fibers, and in the semiconductor industry for the fabrication of electronic components. It also finds applications in the development of sensors and as a ligand in analytical chemistry.

What precautions should be taken when handling 2-Amino-1,4-benzenedisulfonic acid (CAS: 98-44-2)?

When handling 2-Amino-1,4-benzenedisulfonic acid, it is important to use personal protective equipment (PPE) such as gloves, goggles, and a lab coat. The compound should be stored in a cool, dry place away from direct sunlight. In case of a spill, it is recommended to use a fume hood and follow proper spill cleanup procedures. Always refer to the Safety Data Sheet (SDS) for detailed safety information and guidelines.