Aniline 2,5 di sulphonic acid

Aniline 2,5 Di Sulphonic Acid is a sulphonated aromatic intermediate manufactured through controlled sulphonation processes. It is used as a key building block in the synthesis of dyes and specialty chemical products. The manufacturing process focuses on maintaining consistent chemical composition, purity, and batch-to-batch reproducibility to support reliable downstream processing in industrial dye and chemical applications.

Specifications

Structural Formula

Molecular Weight

275.2 g/mol

Empirical Formula

C6H6NNaO6S2

Typical Purity

~80% min; HPLC figures often show 98–99% for HPLC profile.

Cas No.

24605-36-5

Synonym

2-amino-1,4-benzenedisulphonic acid; 2,5-disulfoaniline

Nature of Material

Free sulphonic acid / wet powder

Solubility

Soluble in dilute alkaline solutions / water

Description

Off-white to light brown wet powder / off-white moist cake

Packaging

HDPE/PP bags with polyethylene inner liner