p-Anisidine-2-sulfonic acid

CAS: 6470-17-3

Ref. 3D-FA40151

Product Information

• Name: p-Anisidine-2-sulfonic acid
• Synonyms: 1-Amino-4-methoxy-3-benzenesulfonic acid, 1-Amino-4-methoxybenzene-3-sulphonic acid, 1-Methoxy-4-Amino-Benzene-2-Sulphonic Acid, 3-Amino-6-methoxybenzenesulfonic acid, 4-Methoxy Aniline-2-Sulfonic Acid, 4-Methoxyaniline-3-sulfonic acid, 5-Amino-2-methoxybenzenesulfonic acid, 6-Methoxymetanilic acid, Benzenesulfonic acid, 5-amino-2-methoxy-, Metanilic acid, 6-methoxy-, NSC 7546, Para anisidine ortho sulphonic acid, Para-Anisidine-2-Sulphonic Acid, p-Anisidine-3-sulfonic acid

Description

p-Anisidine-2-sulfonic acid is a reactive dye that can be used in paper, textiles, and inks. Its strong absorption band in the visible region makes it an effective pigment for coloring paper products and textiles. It is also used as a pH indicator to measure the acidity of solutions. The reactivity of p-anisidine-2-sulfonic acid with aromatic amines leads to its use in assays for these compounds. The chromophore of this compound is an amine group and it has two reactive groups that are bifunctional and electrochemically active. This compound deteriorates when exposed to light and air due to oxidation by atmospheric oxygen.

• Brand: Biosynth

Chemical properties

• Molecular weight: 203.22 g/mol
• Formula: C₇H₉NO₄S
• Purity: Min. 95%
• Color/Form: Powder