Skip to Content
Merck
All Photos(2)

Documents

462268

Sigma-Aldrich

4,4′-Diamino-2,2′-stilbenedisulfonic acid

technical grade, 85%

Synonym(s):

Amsonic acid

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
C14H14N2O6S2
CAS Number:
81-11-8
Molecular Weight:
370.40
EC Number:
201-325-2
MDL number:
MFCD00024946
UNSPSC Code:
12352100
PubChem Substance ID:
24869958
NACRES:
NA.22

grade

technical grade

Quality Level

100

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.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 1

1 of 1

4-Tritylaniline 97%

Sigma-Aldrich

159506

4-Tritylaniline

A S Zolotarev et al.
Biochemistry, 38(26), 8521-8531 (1999-07-01)
Although considerable information is available on the oligomeric states of the AE1 (band 3) anion exchanger, little is known about the physiological state of the polypeptides encoded by the nonerythroid AE genes, AE2 and AE3. We have previously characterized the
N Muramatsu et al.
Journal of biomedical materials research, 17(6), 959-971 (1983-11-01)
Microcapsules having different numbers of sulfonic acid groups on their surfaces were prepared by the interfacial polycondensation method. Platelets adhered to these capsules, and the rate and degree of platelet adhesion were found to be remarkable on those microcapsules that
G Yilmaz et al.
Biological trace element research, 75(1-3), 129-138 (2000-10-29)
It is known that the subcutaneous injection of a single dose of sodium selenite into suckling rats results in the development of large nuclear opacities. The intracellular transport of selenite in various cells, except lens cells, occurs via the Cl/HCO3
W Zhu et al.
Water research, 35(8), 2087-2091 (2001-05-08)
A pretreatment method for the biological treatment of wastewater from 4,4'-diaminostilbene-2,2'-disulfonic acid (DSD-acid) manufacturing processes, a refractory dye intermediate wastewater, based on combined ferrous hydrogen peroxide oxidation and coagulation-flocculation, was developed. When the wastewater was treated with ferrous hydrogen peroxide
Toxicology and Carcinogenesis Studies of 4, 4'-Diamino-2, 2'-Stilbenedisulfonic Acid Disodium Salt (CAS No. 7336-20-1) in F344 Rats and B6C3F1 Mice (Feed Studies).
National Toxicology Program Technical Report Series, 412, 1-1 (1992)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service