4-(2-PYRIDYLAZO)RESORCINOL CAS 1141-59-9

Introduction：Basic information about 4-(2-PYRIDYLAZO)RESORCINOL CAS 1141-59-9, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

4-(2-PYRIDYLAZO)RESORCINOL Basic information

• Product Name: 4-(2-PYRIDYLAZO)RESORCINOL
• Synonyms: TIMTEC-BB SBB008938;3-Benzenediol,4-(2-pyridinylazo)-1;4-(2'-PYRIDYLAZO)-RESORCINOL;4-(2-PYRIDYLAZO)RESORCINOL;[=4-(2-Pyridylazo)resorcinol] [SpectrophotoMetric reagent for transition Metals];PAR 4-(2-Pyridylazo)resorcinol, 99% 5GR;4-(2-Pyridylazo)reso
• CAS: 1141-59-9
• MF: C11H9N3O2
• MW: 215.21
• EINECS: 214-528-6
• Product Categories: Analytical Chemistry;Azo Compounds;Chelating Reagents;Pyridylazo Compounds
• Mol File: 1141-59-9.mol

4-(2-PYRIDYLAZO)RESORCINOL Chemical Properties

• Melting point: 192-202 °C(lit.)
• Boiling point: 355.48°C (rough estimate)
• density: 1.2579 (rough estimate)
• refractive index: 1.4930 (estimate)
• storage temp.: room temp
• solubility: DMSO (Slightly), Methanol (Slightly)
• pka: 8.18±0.35(Predicted)
• form: Powder
• color: Orange
• Water Solubility: Soluble in water (partly), and ethanol (slightly). Insoluble in ether, and low-polarity solvents.
• BRN: 184665
• Major Application: diagnostic assay manufacturing hematology histology
• 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+
• InChIKey: RJNYNDHYSJRRDW-BUHFOSPRSA-N
• SMILES: Oc1ccc(\N=N\c2ccccn2)c(O)c1
• CAS DataBase Reference: 1141-59-9(CAS DataBase Reference)
• EPA Substance Registry System: 1,3-Benzenediol, 4-(2-pyridinylazo)- (1141-59-9)

Safety Information

• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• RIDADR: 2811
• WGK Germany: 3
• TSCA: TSCA listed
• HazardClass: 6.1
• PackingGroup: III
• HS Code: 29333990
• Storage Class: 11 - Combustible Solids

4-(2-PYRIDYLAZO)RESORCINOL Usage And Synthesis

Chemical Properties

ORANGE POWDER

Uses

4-(2-Pyridylazo)resorcinol is used in studies of zinc release from Escherichia coli aspartate transcarbamoylase. It is used in cloud point extraction of copper, zinc, cadmium, and nickel in water samples. It is used in the chelate titration of aluminum, mercury, lead and nickel. It is employed as reagent in the colorimetric analysis of gold, cobalt, chromium, iron.

General Description

for synthesis

Purification Methods

Purify PAR as the sodium salt by recrystallisation from 1:1 EtOH/water. Purity can be checked by TLC using a silica gel plate and a mixed solvent (n-BuOH:EtOH:2M NH3; 6:2:2). [Beilstein 22 I 694, 22 III/IV 7074, 22/14 V 619.]