4, 4′-Diaminostilbene-2, 2′diasulfonic Acid (DSD ACID)

• Type: Synthesis Material Intermediates
• Appearance: Crystal
• Quality: Industrial
• Colour: Yellow
• Transport Package: 25kg/Carton
• Specification: 98%
• Model NO.: DSD acid
• Trademark: DEBORN
• Origin: China
• HS Code: 290899
• Production Capacity: 5000mt/Year

Product Description

4, 4'-Diaminostilbene-2, 2'diasulfonic acid
Chemical name: 4, 4'-Diaminostilbene-2, 2'diasulfonic acid (DSD ACID)

Molecular formula: C14H14N2O6S2
Molecular weight: 370.4
CAS number: 81-11-8

Specification:

Appearance: Yellowish powder Yellowish paste
Assay (Amino value) ≥ 96% ≥ 60%
Assay (HPLC) ≥ 95% ≥ 95%
Content of DND ≤ 0.3% ≤ 0.5%
Content of alkaline undissolved matter ≤ 0.1% ≤ 0.1%
Ash content ≤ 2.50% ≤ 2.50%
Chrominance ≤ 0.2 ≤ 0.25

Application: Used in the synthesis of fluorescent brightening agent, Chrysophenine
G, Sun yellow and Pesticide. Insecticide