DSD acid /4,4-Diaminostilbene-2,2-disulfonic acid

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4,4-Diaminostilbene-2,2-disulfonic acid  / DSD acidMolecular formula: C14H14N2O6S2Molecular weight: 370.4 Property: 1)Light yellow cream or powder, soluble in ethanol and ether; insoluble in water, easily soluble in alkaline solution. 2)Can be easily oxidized into red; has the property of aromatic acid or aromatic amine

 

Specification

Item	Index
(1)Appearance dry/wet	light yellow powder/light yellow cream
(2)Dry product total amino value(gross dry sample)% ≥	95.0
(3)Degree of pigmentation(EOD) ≤	0.15
(4)Content of alkali insolubles (gross cream )% ≤	0.08
(5)Benzyl compound(gross sample)% ≤	0.25
(6)Ash content% ≤	2.5

Main use: In the manufacture of fluorescent brighteming agent,Chrysophenine G and Direct Yellow R, also as pesticides Packing: dry product: in 25kg woven bags or upon clients' request;

                wet product: in 40kg woven bag or upon clients' request.

DSD acid /4,4-Diaminostilbene-2,2-disulfonic acid