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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

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Statements

H302,H315,H317,H319,H341

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1

Storage Class Code

13 - Non 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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Fluorometric measurement of tyrosine in serum and plasma.
J A Ambrose
Clinical chemistry, 20(4), 505-510 (1974-04-01)
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
Nayyef Aljaar et al.
The Journal of organic chemistry, 78(1), 154-166 (2012-11-28)
Reactions between 1-nitroso-2-naphthols and α-functionalized ketones such as α-bromo-, α-chloro-, α-mesyloxy-, α-tosyloxy-, and α-hydroxy ketones under basic conditions delivered 2-substituted naphtho[1,2-d][1,3]oxazoles in a single synthetic operation. The product formation was accompanied by the unexpected loss of the C═O group from
C F Burrows et al.
Journal of the American Veterinary Medical Association, 183(3), 318-322 (1983-08-01)
The nitrosonapthol test, which qualitatively measures urinary excretion of 4-hydroxyphenylacetic acid and related compounds, was evaluated as a screening test for small intestinal disease in 60 dogs with chronic diarrhea. Test results were positive in 8 of 13 dogs with
V Leskovac et al.
The International journal of biochemistry, 25(2), 279-286 (1993-02-01)
1. The endogenous, NADPH-supported production of H2O2 and of O2-.-radicals in liver microsomes, was very strongly enhanced in the presence of 1-nitroso-2-naphthol. 2. A 30-fold induction by NON was the consequence of its direct reduction to NON-radicals, catalyzed by microsomal
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