4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid 81-11-8, China 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid 81-11-8 Manufacturers, China 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid 81-11-8 Suppliers

4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid

Category :

Intermediates

EC NO : 201-325-2

Molecular Formula : C₁₄H₁₄N₂O₆S₂

Main Specifications :

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;

4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid

Molecular Structure:

4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid 81-11-8

Product description:

Chemical name:4,4’-Diaminostilbene-2,2’-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:

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)	≤0.12
(4)Content of alkali insolubles (gross cream )%	≤0.08
(5)Benzyl compound(gross sample)%	≤ 0.25
(6)Ash content%	≤2.2

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.

Send your inquiry to 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid supplier

Company：	Zhengzhou Meinl Chemical Co.,Ltd.
Contact：	Manager Duan
Phone：	+86-371-56871707
Mobile phone：	+86-13526897435
Fax：	+86-371-56871707
E-mail：	Contact Supplier
Website：	http://www.meinlchem.com
Address：	109# Bitao Road,High-tech Zone,Zhengzhou,Henan,China.
Zip Code：	450000