D.A.S.D.A.

We are engaged in manufacturing and exporting excellent quality D.A.S.D.A. to our valuable clients. EC NO:201-325-2 Molecular Formula:C14H14N2O6S2 Molecular Weight:370.4008 Specification: InChI:InChI=1/C14H14N2O6S2/c15-11-5-3-9(13(7-11)23(17,18)19)1-2-10-4-6-12(16)8-14(10)24(20,21)22/h1-8H,15-16H2,(H,17,18,19)(H,20,21,22) Product description: Chemical name:4,4a -Diaminostilbene-2,2a -disulfonic acid Structural formula: Chemical formula: C14H14N2O6S2 Molecular weight: 370.4 CAS NO.:81-11-8 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 Quality index: ItemIndex (1)Appearance dry/wetlight yellow powder/light yellow cream (2)Dry product total amino value(gross dry sample)%a Y95.0 (3)Degree of pigmentation(EOD)a 0.12 (4)Content of alkali insolubles (gross cream )%a 0.08 (5)Benzyl compound(gross sample)%a 0.25 (6)Ash content%a 2.2 Main use:In the manufacture of fluorescent brighteming agenta 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. Synonyms:2,2'-(1,2-Ethylenediyl)bis(5-aminobenzenesulfonic acid); Amsonic acid;4,4'-Diaminostilbene-2,2'-Disulfonic Acid;2,2'-ethene-1,2-diylbis(5-aminobenzenesulfonic acid);4,4'-Diamino-2,2'-stilbenedisulfonic acid;