1. Specification: 1) Appearance: off-white powder2) Purity: 82.8%; 87.4%; 90.16% on Free acid (m.w.253.3)3) Water insolubles: ≤0.1%; ≤0.1%; ≤0.1%; 4) Moisture: ≤7%; ≤2%; ≤0.5% 

2. Applicant: Dyestuff intermediate mainly used to produce reactive dyes, acid dyes and fluorescent whitening agent.

3. Packaging: In25kg, 500kg, 750kg bags, or as per customer's requirements

4. Other information:  CAS NO.,: 98-44-2

Molecular formula: C6H6NO6S2NaMolecular weight: 275.2

5. Annual capacity: 8000mts