Basic information Safety Supplier Related
ChemicalBook >  Product Catalog >  Biochemical Engineering >  Biochemical Reagents >  Acid-base indicator >  4-(2-PYRIDYLAZO)RESORCINOL

4-(2-PYRIDYLAZO)RESORCINOL

Basic information Safety Supplier Related

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
More
Less

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)
form 
Powder
pka
8.18±0.35(Predicted)
color 
Orange
Water Solubility 
Soluble in water (partly), and ethanol (slightly). Insoluble in ether, and low-polarity solvents.
BRN 
184665
CAS DataBase Reference
1141-59-9(CAS DataBase Reference)
EPA Substance Registry System
1,3-Benzenediol, 4-(2-pyridinylazo)- (1141-59-9)
More
Less

Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
RIDADR 
2811
WGK Germany 
3
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29333990

MSDS

More
Less

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.]

4-(2-PYRIDYLAZO)RESORCINOLSupplier

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Email
jkinfo@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Email
market03@meryer.com
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Email
3bsc@sina.com
Alfa Aesar
Tel
400-6106006
Email
saleschina@alfa-asia.com
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Email
Sales-CN@TCIchemicals.com