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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)

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)
[A modified method of determination of bound 5-hydroxyindoleacetic acid in the urine].
N G Shafranova et al.
Laboratornoe delo, (7)(7), 25-26 (1983-01-01)
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
C A Georgiou et al.
The Analyst, 115(3), 309-313 (1990-03-01)
The reaction of para- and meta-substituted phenols with 1-nitroso-2-naphthol in the presence of either CeIV or PbIV as an oxidant has been used to develop a fast automated flow injection (Fl) method. A stopped-flow kinetic study of the reaction revealed
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
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