4,4'-Diaminostilbene-2,2'-disulfonic acid

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Product
4,4'-Diaminostilbene-2,2'-disulfonic acid
Posting date : Aug 06, 2015
Membership
Free Member Scince Apr 10, 2015
FOB Price
4.2/KG
Min. Order Quantity
5KG
Supply Abillity
30t/month
Port
QINGDAO
Payment Terms
T/T
Package
in 25KG woven bags or upon clients' request
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Category
Contact
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Product Detail
Company Info
 
Quick Detail
Place of Origin
China [CN]
Brand Name
Meinl
Model Number
0001
HS-CODE
3206-19
Package & Delivery Lead Time
Package
in 25KG woven bags or upon clients' request
Detailed Description
CAS NO: 81-11-8
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:4,4’-Diaminostilbene-2,2’-disulfonic acidStructural formula:Chemical formula: C14H14N2O6S2     Molecular weight: 370.4CAS NO.:81-11-8Property: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 amineQuality 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 pesticidesPacking: 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;
Molecular Structure: 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid 81-11-8

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