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
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