250619
4-Amino-1-naphthalenesulfonic acid
97%
Synonym(s):
1-Naphthylamine-4-sulfonic acid, Naphthionic acid
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About This Item
Linear Formula:
H2NC10H6SO3H
CAS Number:
Molecular Weight:
223.25
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
201-567-9
Beilstein/REAXYS Number:
1971299
MDL number:
Assay:
97%
Form:
powder
InChI key
NRZRRZAVMCAKEP-UHFFFAOYSA-N
InChI
1S/C10H9NO3S/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9/h1-6H,11H2,(H,12,13,14)
SMILES string
Nc1ccc(c2ccccc12)S(O)(=O)=O
assay
97%
form
powder
mp
≥300 °C (lit.)
solubility
water: very slightly soluble(lit.)
functional group
sulfonic acid
Quality Level
Related Categories
General description
4-Amino-1-naphthalenesulfonic acid is a diazo compound. It is also known as Piria′s acid.
Application
4-Amino-1-naphthalenesulfonic acid has potent therapeutic applications. Its sodium salt has been used as non-toxic hemostatic.
Hazard Classifications
Skin Corr. 1B
signalword
Danger
hcodes
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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Tracing polar benzene-and naphthalenesulfonates in untreated industrial effluents and water treatment works by ion-pair chromatography-fluorescence and electrospray-mass spectrometry.
Alonso MC and Barcelo D.
Analytica Chimica Acta, 400(1), 211-231 (1999)
C Juárez-Ramírez et al.
Journal of industrial microbiology & biotechnology, 39(8), 1169-1177 (2012-04-12)
By decolorization of azo dyes, caused by reductive cleavage of the azo linkage, toxic or recalcitrant amines are generated. The present study deals with the effect of the inflowing medium composition (C:N ratio) on the kinetic behavior of a bacterial
Circulating naphthionic acid in nonpregnant and pregnant rats after feeding amaranth.
R F Willes et al.
Toxicology and applied pharmacology, 54(2), 276-284 (1980-06-30)
I Lindh et al.
Rapid communications in mass spectrometry : RCM, 8(10), 797-803 (1994-10-01)
A series of small peptides has been studied by negative-ion fast-atom bombardment mass spectrometry with collision-induced dissociation. It has been found that by derivatizing peptides with 4-aminonaphthalenesulphonic acid in a peptide linkage at the C-terminus, negative-ion formation can be enhanced
David E Lefebvre et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 110, 395-401 (2017-11-07)
The chemical amaranth (AM) is permitted as a colouring agent in a variety of foods. Safety was established based on chronic rodent studies. AM and its metabolite naphthionic acid (NA) can be absorbed through the intestine, exposing circulating immune cells
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