MilliporeSigma
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323209

Sigma-Aldrich

4-(2-Pyridylazo)resorcinol

96%

Synonym(s):
PAR
Empirical Formula (Hill Notation):
C11H9N3O2
CAS Number:
Molecular Weight:
215.21
Beilstein:
184665
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

Quality Level

assay

96%

form

powder

technique(s)

titration: suitable

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 dibasic acid that forms the protonated complexes with most metal ions. It serves as a metallochromic indicator and is suitable as a chromogenic agent for the quantitative determination of over 50 elements.

Packaging

5, 25 g in glass bottle

Storage Class Code

13 - Non 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

Certificate of Analysis

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Certificate of Origin

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