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82960

1-(2-Pyridylazo)-2-naphthol

Name: 1-(2-Pyridylazo)-2-naphthol
Brand: SIGMA

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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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

mp

138-141 °C

SMILES string

Oc1ccc2ccccc2c1\N=N\c3ccccn3

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+

InChI key

LLYOXZQVOKALCD-ISLYRVAYSA-N

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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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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

Determination of trace amounts of Cu2+, Ni2+, and Mn2 ions after preconcentration onto PAN-immobilized organo nanoclay as a new sorbent.

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

Cloud point extraction combined with graphite furnace atomic absorption spectrometry for speciation of Cr(III) in human serum samples.

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

SERS and DFT investigation of 1-(2-pyridylazo)-2-naphthol and its metal complexes with Al(III), Mn(II), Fe(III), Cu(II), Zn(II) and Pb(II).

László Szabó et al.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 93, 266-273 (2012-04-10)

The development of surface-enhanced Raman scattering (SERS) as a prospective analytical methodology for detection of metal ions was shown in recent years by several studies on metal complexes. In this work, 1-(2-pyridylazo)-2-naphthol (PAN) and its Al(III), Mn(II), Fe(III), Cu(II), Zn(II)

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