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Merck
CN

82960

1-(2-Pyridylazo)-2-naphthol

for spectrophotometric det. of metal ions, ≥97.0%

Synonym(s):

PAN

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About This Item

Empirical Formula (Hill Notation):
C15H11N3O
CAS Number:
85-85-8
Molecular Weight:
249.27
EC Number:
201-637-9
UNSPSC Code:
12171500
PubChem Substance ID:
329769273
Beilstein/REAXYS Number:
206390
MDL number:
MFCD00004071

Key Documents

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InChI key

LLYOXZQVOKALCD-ISLYRVAYSA-N

InChI

1S/C15H11N3O/c19-13-9-8-11-5-1-2-6-12(11)15(13)18-17-14-7-3-4-10-16-14/h1-10,19H/b18-17+

SMILES string

Oc1ccc2ccccc2c1\N=N\c3ccccn3

assay

≥97.0% (HPLC), ≥97.0%

quality

for spectrophotometric det. of metal ions

technique(s)

UV/Vis spectroscopy: suitable, titration: suitable

color

green to red, upon chelation with metal, orange-red, as an amorphous solid, yellow, when dissolved in organic solvent

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Other Notes

Indicator in complexometry; reagent for the extraction and spectrophotometric determination of many transition metals

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
WXBC3444V
WXBC2610V
WXBC2247V
BCBK4303V
WXBC0711V

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Z. Holzbecher et al.
Handbook of Organic Reagents in Inorganic Analysis null
K.L. Cheng et al. et al.
Handbook of Organic Analytical Reagents null
Mei Sun et al.
Journal of pharmaceutical and biomedical analysis, 60, 14-18 (2011-11-29)
A cloud point extraction (CPE) method for the preconcentration of ultra-trace chromium speciation in human serum samples prior to determination by graphite furnace atomic absorption spectrometry (GFAAS) had been developed in this paper. In this method, Cr(III) reacts with 1-(2-pyridylazo)-2-naphthol
Mohammad Ali Taher
Annali di chimica, 94(5-6), 437-446 (2004-07-29)
A highly selective, sensitive, rapid and economical differential pulse polarographic method has been developed for the determination of trace amount of lead in various samples after adsorption of its 1-(2-pyridylazo)-2-naphthol (PAN) on naphthalene in the pH range of 8.4 -
Dengqing Zhang et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 90, 35-39 (2012-02-07)
A copper (II) complex of azo-dye (Cu-1) has been synthesized by the reaction of 1-(2-pyridylazo)-2-naphthol (1) with copper (II) chloride. The complex Cu-1 is able to selectively sense hydrogen sulfide over other anions followed by the release of compound 1
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