Skip to Content
MilliporeSigma
All Photos(2)

Key Documents

462268

Sigma-Aldrich

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

technical grade, 85%

Synonym(s):

Amsonic acid

Sign Into View Organizational & Contract Pricing


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

grade

technical grade

Quality Level

Assay

85%

mp

>300 °C (lit.)

functional group

sulfonic acid

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

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

Signal Word

Warning

Hazard Statements

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

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

N Hassanin et al.
Veterinary and human toxicology, 32(6), 536-540 (1990-12-01)
Metabolites of fusarium moniliforme isolates from different types of corn were characterized biologically and chemically. The biological assays included rat feeding, rat dermal tests and inoculation of embryonated eggs. Thin-layer chromatography, gas liquid chromatography, and mass spectrophotometry were used to
A K Singh et al.
Kidney international, 48(4), 985-993 (1995-10-01)
Chloride channels are ubiquitously distributed, biophysically varied and functionally diverse. Despite the known contribution of chloride channels to the physiology of various cell types and the pathology of several diseases, high affinity ligands are not available to study these channels.
S Lepke et al.
The Journal of physiology, 328, 27-48 (1982-07-01)
1. Dansylation of the red cell membrane produces inverse effects on SO(4) (2-) and Cl(-) equilibrium exchange. The former is enhanced by several orders of magnitude (Legrum, Fasold & Passow, 1980), the latter is inhibited. Both effects are potentiated after
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
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)

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