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About This Item
Empirical Formula (Hill Notation):
C11H9N3O2
CAS Number:
Molecular Weight:
215.21
Beilstein:
184665
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47
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Quality Level
Assay
96%
form
powder
composition
Carbon: 58.6-64.2%
Nitrogen: 18.6-20.4%
technique(s)
titration: suitable
color
brown-red
mp
192-202 °C (lit.)
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
SMILES string
Oc1ccc(\N=N\c2ccccn2)c(O)c1
InChI
1S/C11H9N3O2/c15-8-4-5-9(10(16)7-8)13-14-11-3-1-2-6-12-11/h1-7,15-16H/b14-13+
InChI key
RJNYNDHYSJRRDW-BUHFOSPRSA-N
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General description
4-(2-Pyridylazo)resorcinol (PAR) is a monosodium salt(1), dibasic acid that forms the protonated complexes with most metal ions.
Application
4-(2-Pyridylazo)resorcinol (PAR) serves as a metallochromic indicator and is suitable as a chromogenic agent for the quantitative determination of over 50 elements.
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
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Douglas A Mitchell et al.
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The inducible isoform of nitric oxide synthase (iNOS) and three zinc tetrathiolate mutants (C104A, C109A, and C104A/C109A) were expressed in Escherichia coli and purified. The mutants were found by ICP-AES and the zinc-specific PAR colorimetric assay to be zinc free
Wan Mohd Ebtisyam Mustaqim Mohd Daniyal et al.
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In this study, X-ray photoelectron spectroscopy (XPS) was used to study chitosan-graphene oxide (chitosan-GO) incorporated with 4-(2-pyridylazo)resorcinol (PAR) and cadmium sulfide quantum dot (CdS QD) composite thin films for the potential optical sensing of cobalt ions (Co2+). From the XPS
Edson Luiz Silva et al.
Journal of hazardous materials, 171(1-3), 1133-1138 (2009-08-04)
A procedure for simultaneous separation/preconcentration of copper, zinc, cadmium, and nickel in water samples, based on cloud point extraction (CPE) as a prior step to their determination by inductively coupled plasma optic emission spectrometry (ICP-OES), has been developed. The analytes
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[NiFe]-hydrogenase, which catalyzes the reversible conversion between hydrogen gas and protons, is a vital component of the metabolism of many pathogens. Maturation of [NiFe]-hydrogenase requires selective nickel insertion that is completed, in part, by the metallochaperones SlyD and HypB. Escherichia
Gilles Montavon et al.
Dalton transactions (Cambridge, England : 2003), 39(5), 1366-1374 (2010-01-28)
Literature reports of the efficacy of para-sulfonatocalix[6]- and calix[8]-arenes as U(vi) complexants indicated that they might be useful for in vivo chelation of the novel therapeutic alpha-emitter (230)U. We have studied the complexation of U(vi) with para-sulfonatocalix[6]arene and para-sulfonatocalix[8]arene by
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