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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

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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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K.L. Cheng et al. et al.
Handbook of Organic Analytical Reagents null
Z. Holzbecher et al.
Handbook of Organic Reagents in Inorganic Analysis null
Daryoush Afzali et al.
Journal of AOAC International, 91(6), 1430-1434 (2009-02-11)
The application of organo nanoclay 1-(2-pyridylazo)-2-naphthol (PAN)-immobilized as a new, easily prepared, and stable solid sorbent for preconcentration of trace amounts of Cu2+, Ni2+, and Mn2+ ions in aqueous solution is presented. The organo nanoclay was prepared by adding tetradecyldimethylbenzylammonium
Abbas Afkhami et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 60(1-2), 181-186 (2003-12-13)
A very simple and selective spectrophotometric method for simultaneous determination of Co(II) and Ni(II) by 1-(2-pyridylazo) 2-naphthol (PAN), in micellar media, using H-point standard addition method (HPSAM) is described. The ligand and its metal complexes (Co(II)-PAN and Ni(II)-PAN) were made
Mustafa Tuzen et al.
Journal of hazardous materials, 121(1-3), 79-87 (2005-05-12)
A preconcentration/separation procedure is presented for the solid phase extraction of trace cadmium and lead ions as their 1-(2-pyridylazo) 2-naphthol (PAN) chelates in environmental samples on Chromosorb-106 resin, prior to cadmium and lead determinations by atomic absorption spectrometry. The preconcentration
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