44'-dinitrostilbene-22'-disulphonic Acid (Dnst)

We are exporting and supplying of 44'-Dinitrostilbene-22'-Disulphonic Acid (DNST) with the following specification:
CAS NO:128-42-7
EC NO:204-885-6
Molecular Formula:C14H10N2O10S2
Molecular Weight:430.37
Specification:
InChI:InChI=1/C14H10N2O10S2.Na/c17-15(18)11-5-3-9(13(7-11)27(2122)23)1-2-10-4-6-12(16(19)20)8-14(10)28(2425)26;/h1-8H(H212223)(H242526);/q;+1/p-1
Product description:
Category: Intermediates
CAS NO: 128-42-7
EC NO: 204-885-6
Molecular Formula: C14H10N2O10S2
Molecular Weight: 430.37
Chemical name: 44-Dinitrostilbene-22-disulfonic acid
Structural formula:

Quality index:
ItemIndex
(1)Appearanceorange powder
(2)Binitro acid content(gross dry product)%a a a Y80.0
(3)binitrobenzyl compound (gross dry product )%a 4.0
(4)Other organic impurities(gross dry product )%a a 2.0
(5)Inorganic salt(gross dry product )%a a a a a a a a 10.0
(6)Water insolubles(gross dry product)%a a a a a a a a 1.0
Main use: it is an intermediate of dyes can be used to manufacture DSD acid.
Packing: 40kg plastic woven bag or upon clients' request.
Synonyms:44-Dinitrostilbene-22-disulfonic acid;44'-Dinitrostilbene-22'-Disulfonic Acid;22'-ethene-12-diylbis(5-nitrobenzenesulfonic acid);sodium 5-nitro-2-[2-(4-nitro-2-sulfophenyl)ethenyl]benzenesulfonate;
Molecular Structure:44'-dinitrostilbene-22'-disulphonic acid 128-42-7