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70862

Sigma-Aldrich

4-Amino-1-naphthalenesulfonic acid sodium salt hydrate

technical

Synonym(s):

1-Naphthylamine-4-sulfonic acid sodium salt, Naphthionic acid sodium salt, Sodium 4-amino-1-naphthalenesulfonate

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About This Item

Linear Formula:
H2NC10H6SO3Na · xH2O
CAS Number:
Molecular Weight:
245.23 (anhydrous basis)
Beilstein:
3784871
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

grade

technical

Quality Level

form

crystals

impurities

~25% water

mp

280 °C (dec.) (lit.)

SMILES string

[Na+].[H]O[H].Nc1ccc(c2ccccc12)S([O-])(=O)=O

InChI

1S/C10H9NO3S.Na.H2O/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9;;/h1-6H,11H2,(H,12,13,14);;1H2/q;+1;/p-1

InChI key

PGVZBSXAFZCRTM-UHFFFAOYSA-M

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Application

4-Amino-1-naphthalenesulfonic acid sodium salt hydrate can be used:
  • To prepare 1-bromo-4-naphthalenesulfonic acid, applicable as a phosphorophore in the detection of peptides by capillary electrophoresis.
  • As a reactant to synthesize scandium complexes, applicable as artificial receptors in the removal of amphoteric α−amino acids from aqueous solutions.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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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Detection of nonderivatized peptides in capillary electrophoresis using quenched phosphorescence
Kuijt J, et al.
Analytical Chemistry, 73(21), 5026-5029 (2001)
Nobuyuki Hayashi et al.
The Journal of organic chemistry, 77(21), 9652-9658 (2012-10-12)
To recognize α-amino acids with highly polar side chains in water, poorly water soluble scandium complexes with both Lewis acidic and basic portions were synthesized as artificial receptors. A suspension of some of these receptor molecules in an α-amino acid

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