462268
4,4′-Diamino-2,2′-stilbenedisulfonic acid
technical grade, 85%
Synonym(s):
Amsonic acid
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About This Item
Empirical Formula (Hill Notation):
C14H14N2O6S2
CAS Number:
Molecular Weight:
370.40
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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grade
technical grade
Quality Level
assay
85%
mp
>300 °C (lit.)
SMILES string
Nc1ccc(\C=C\c2ccc(N)cc2S(O)(=O)=O)c(c1)S(O)(=O)=O
InChI
1S/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)/b2-1+
InChI key
REJHVSOVQBJEBF-OWOJBTEDSA-N
Related Categories
General description
Disodium salt of 4,4′-diamino-2,2′-stilbenedisulfonic acid may be used in the synthesis of dyes and optical brighteners or fluorescent whitening agents.
Certificates of Analysis (COA)
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G Yu et al.
Chemosphere, 37(3), 487-494 (1998-07-14)
Two advanced oxidation processes, Fenton's reagent oxidation and ozonation, were used for pretreatment of a 4,4'-diaminostilbene-2,2'-disulfonic acid (DSD-acid) manufacturing wastewater on a laboratory scale. The results showed that both methods are suitable for partial removal of chemical oxygen demand (COD)
Z Li et al.
Huan jing ke xue= Huanjing kexue, 22(6), 57-60 (2002-02-22)
H acid and DSD acid are two important substrate of dyes, which wastewater is treated more difficulty because of containing multi-component, with high chroma value and nonbiodegradability. A treatment way of this wastewater by extraction based on chemical association was
Ahmed Mohamed El-Toni et al.
Journal of colloid and interface science, 293(2), 449-454 (2005-07-19)
Organic ultraviolet (UV) rays absorbents have been used as sunscreen materials, but they may pose a safety problem when used at high concentration. In order to prevent direct contact of organic UV rays absorbent to the human skin, a typical
K A Hostetler et al.
Journal of toxicology and environmental health, 48(2), 141-149 (1996-06-07)
4,4'-Diamino-2,2'-stilbene disulfonic acid (DAS), a key intermediate in the synthesis of dyes and fluorescent whitening agents, has been purported to have weak estrogenic properties based on apparent structural similarity with diethylstibestrol (DES) and unsubstantiated reports of male reproductive dysfunction in
C J Venglarik et al.
Molecular and cellular biochemistry, 140(2), 137-146 (1994-11-23)
We showed previously that the disulfonic stilbene DNDS (4,4'-dinitrostilben-2,2'-disulfonic acid) was a potent blocker of outwardly rectifying chloride channels (ORCC). The studies reported here were designed to quantify the relationship between electron withdrawal by the 4,4'-substituents and blocker potency. Specifically
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