CAS 88-21-1

2-Aminobenzenesulfonic acid

Description:

2-Aminobenzenesulfonic acid, also known as sulfanilic acid, is an aromatic sulfonic acid characterized by the presence of both an amino group (-NH2) and a sulfonic acid group (-SO3H) attached to a benzene ring. This compound is typically a white to light yellow crystalline solid that is soluble in water, which is a notable feature due to the polar nature of the sulfonic acid group. It has a melting point that varies depending on purity and form, and it exhibits acidic properties due to the sulfonic acid group. 2-Aminobenzenesulfonic acid is commonly used in the synthesis of azo dyes, as well as in the manufacture of various pharmaceuticals and chemical intermediates. Additionally, it serves as a reagent in analytical chemistry, particularly in the determination of nitrite and nitrate ions. The compound is also known for its role in biological systems, where it can act as a precursor to other biologically active molecules. Safety precautions should be observed when handling this substance, as it may cause irritation to the skin and eyes.

Formula: C₆H₇NO₃S

InChI: InChI=1S/C6H7NO3S/c7-5-3-1-2-4-6(5)11(8,9)10/h1-4H,7H2,(H,8,9,10)

InChI key: InChIKey=ZMCHBSMFKQYNKA-UHFFFAOYSA-N

SMILES: S(=O)(=O)(O)C1=C(N)C=CC=C1

Synonyms:

• 1-Aminobenzene-2-sulfonic acid
• 2-Aminobenzene-1-sulfonic acid
• 2-Aminobenzenesulfonate
• 2-Aminobenzenesulfonic acid
• 2-Aminobenzenesulphonic Acid
• 2-Aminophenylsulfonic acid
• 2-Anilinesulfonic acid
• 2-Sulfoaniline
• Aniline-o-sulfonic acid
• Benzenesulfonic acid, 2-amino-
• Benzenesulfonic acid, o-amino-
• NSC 147
• Orthanilic acid
• o-Aminobenzenesulfonic acid
• o-Aminophenylsulfonic acid

2-Aminobenzenesulfonic Acid

CAS: 88-21-1

Formula: C₆H₇NO₃S

Purity: >99.0%(T)(HPLC)

Color and Shape: White to Almost white powder to crystal

Molecular weight: 173.19

Ref: 3B-A0266

Orthanilic acid, 95%

CAS: 88-21-1

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

Formula: C₆H₇NO₃S

Purity: 95%

Color and Shape: White to cream to yellow to pale brown or yellow-green or grey, Crystals or powder or crystalline powder

Molecular weight: 173.19

Ref: 02-H31763

2-Aminobenzenesulfonic acid

CAS: 88-21-1

2-Aminobenzenesulfonic acid

Purity: ≥98%

Molecular weight: 173.19g/mol

Ref: 54-BUP18493

2-Aminobenzenesulphonic acid

CAS: 88-21-1

2-Aminobenzenesulphonic acid

Formula: C₆H₇NO₃S

Purity: 95%

Color and Shape: faint brown powder

Molecular weight: 173.18968g/mol

Ref: 54-OR40577

Orthanilic acid (Aniline-2-sulfonic acid)

CAS: 88-21-1

Formula: C₆H₇NO₃S

Molecular weight: 173.19

Ref: 7W-GK8730

Aniline-2-sulfonic acid

CAS: 88-21-1

Formula: C₆H₇NO₃S

Color and Shape: Neat

Molecular weight: 173.19

Ref: 04-C10262900

2-Aminobenzenesulfonic acid

CAS: 88-21-1

2-Aminobenzenesulfonic acid (2-Sulfoaniline) is a useful research chemical.

Formula: C₆H₇NO₃S

Purity: 99.64%

Color and Shape: Light Brown Solid Amorphous

Molecular weight: 173.19

Ref: TM-T4835

2-Aminobenzenesulfonic Acid

CAS: 88-21-1

Formula: C₆H₇NO₃S

Molecular weight: 173.19

Ref: 4Z-B-4453

2-Aminobenzenesulfonic acid

CAS: 88-21-1

Formula: C₆H₇NO₃S

Purity: 97%

Color and Shape: Solid

Molecular weight: 173.19

Ref: 10-F068231

2-Aminobenzenesulphonic Acid

Controlled Product

CAS: 88-21-1

Applications 2-Aminobenzenesulphonic acid (cas# 88-21-1) is a useful research chemical.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Formula: C₆H₇NO₃S

Color and Shape: Light Brown Solid

Molecular weight: 173.19

Ref: TR-A622548