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462268

Sigma-Aldrich

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:
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

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’.

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