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  • Contact Person : Mr. LIU Robert
  • Company Name : Shanghai Rokem International Co., Ltd.
  • Tel : 86-21-50811396
  • Fax : 86-21-58818728
  • Address : Shanghai,Shanghai,9D DOUBLE DOVE GREAT TOWER ,438 PUDIAN ROAD,SHANGHAI P.R.CHINA
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DSD acid /4,4-Diaminostilbene-2,2-disulfonic acid

DSD acid /4,4-Diaminostilbene-2,2-disulfonic acid
Product Detailed
Related Categories:Organic Intermediate
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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



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