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| | 4-(2-PYRIDYLAZO)RESORCINOL Basic information |
| | 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) |
| 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 |
| | 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)RESORCINOL Preparation Products And Raw materials |
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