BD3869948
4-Hydroxy-3-nitro-2H-chromen-2-one , 98+% , 20261-31-8
Pack Size | Price | Stock | Quantity |
5g | RMB600.00 | In Stock |
|
others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
Melting point: | 172 °C (dec.) (lit.) |
Boiling point: | 364.5±42.0 °C(Predicted) |
Density | 1.63±0.1 g/cm3(Predicted) |
pka | 4.50±1.00(Predicted) |
form | powder to crystal |
color | White to Yellow to Green |
λmax | 329nm(EtOH(50vol%))(lit.) |
BRN | 1247343 |
CAS DataBase Reference | 20261-31-8(CAS DataBase Reference) |
Description and Uses
4-Hydroxy-3-nitrocoumarin may be used as starting reagent for the synthesis of following compounds:
- 4-chloro-3-nitrocoumarin
- 2-unsubstituted 3-nitrochromone
- 4-amino-3-nitrocoumarins
Safety
Symbol(GHS) | GHS06 |
Signal word | Danger |
Hazard statements | H301 |
Precautionary statements | P264-P270-P301+P310-P405-P501 |
Hazard Codes | T |
Risk Statements | 25 |
Safety Statements | 26-36/37/39-45 |
RIDADR | UN 2811 6.1 / PGIII |
WGK Germany | 3 |
HS Code | 2932.20.4500 |