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114693

Sigma-Aldrich

1-Nitroso-2-naphthol

97%

Synonym(s):

1-Nitroso-2-hydroxynaphthalene

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About This Item

Linear Formula:
ONC10H6OH
CAS Number:
131-91-9
Molecular Weight:
173.17
Colour Index Number:
10005
Beilstein:
776947
EC Number:
205-043-0
MDL number:
MFCD00003884
UNSPSC Code:
12352100
PubChem Substance ID:
24847189
NACRES:
NA.22

Assay

97%

form

solid

mp

106-108 °C (dec.) (lit.)

SMILES string

Oc1ccc2ccccc2c1N=O

InChI

1S/C10H7NO2/c12-9-6-5-7-3-1-2-4-8(7)10(9)11-13/h1-6,12H

InChI key

YXAOOTNFFAQIPZ-UHFFFAOYSA-N

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Application

1-Nitroso-2-naphthol is the chelating ion-exchanger in the synthesis of alumina adsorbents that are of acidic, basic and neutral nature. It is used for the removal and preconcentration of Pb(II), Cu(II), Cr(III) from waste, as well as drinking water. It is also used in the preconcentration of cobalt using C(18) microcolumn with flow injection that is coupled to a flame atomic absorption spectrometry (FI-FAAS) system.
1-Nitroso-2-naphthol is used in the preparation of 1-nitroso-2-naphthol-sodium nitrite reagent.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H319,H335

Hazard Classifications

Acute Tox. 4 Oral - 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)

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Improved fluorometric determination of acetaminophen and its conjugates with 1-nitroso-2-naphthol in whole blood and urine.
J Shibasaki et al.
Chemical & pharmaceutical bulletin, 30(1), 358-361 (1982-01-01)
N Schnell et al.
European journal of biochemistry, 200(2), 487-493 (1991-09-01)
o-Phenanthroline (1,10-phenanthroline) is a chemical known to chelate iron and other transition metal ions. This compound was added to solid yeast media to reduce the concentration of biologically available iron. Other essential divalent cations, like Zn2+ or Cu2+, which could
Yingxue Ye et al.
Talanta, 57(5), 945-951 (2008-10-31)
The suitability of 1-nitroso-2-naphthol (NN) as a complexing agent for on-line preconcentration of cobalt using C(18) microcolumn with FI-FAAS system has been tested. Various parameters affecting the complex formation and its elution were optimized. Reagent solution (2.5x10(-3) mol l(-1)) and
Fluorometric measurement of tyrosine in serum and plasma.
J A Ambrose
Clinical chemistry, 20(4), 505-510 (1974-04-01)
J A Knight et al.
Clinical chemistry, 29(11), 1969-1971 (1983-11-01)
1-Nitroso-2-naphthol reacts with various 5-hydroxyindoles as well as para-substituted phenols and guaiacols. Consequently, this reaction has long been used to measure tyrosine in tyrosinosis and tyrosinemia, homovanillic acid in neuroblastoma, and 5-hydroxy-3-indoleacetic acid in the carcinoid tumor. We report here
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