A5484712
3-Methyl-5-pyrazolone , 98% , 108-26-9
Synonym(s):
2,4-Dihydro-5-methyl-3H-pyrazol-3-one;3-Methyl-2-pyrazolin-5-one
CAS NO.：108-26-9
Empirical Formula: C4H6N2O
Molecular Weight: 98.1
MDL number: MFCD00020699
EINECS: 203-565-3
| Pack Size | Price | Stock | Quantity |
| 5G | RMB23.20 | In Stock |
|
| 10G | RMB74.40 | In Stock |
|
| 25G | RMB111.20 | In Stock |
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| 50G | RMB266.40 | In Stock |
|
| 100G | RMB359.20 | In Stock |
|
| 250G | RMB672.80 | In Stock |
|
| 1KG | RMB1199.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 220-224 °C |
| Boiling point: | 183.6°C (rough estimate) |
| Density | 1.1890 (rough estimate) |
| refractive index | 1.4327 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Slightly soluble in ethanol. |
| pka | 13.10±0.40(Predicted) |
| form | powder to crystal |
| color | White to Light yellow |
| CAS DataBase Reference | 108-26-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 3H-pyrazol-3-one, 2,4-dihydro-5-methyl-(108-26-9) |
| EPA Substance Registry System | 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl- (108-26-9) |
Description and Uses
3-Methyl-2-pyrazolin-5-one is used as intermediate for the manufacture of dyestuffs as well as for agrochemicals.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 |
| Risk Statements | 36/37/38 |
| Safety Statements | 24/25 |
| WGK Germany | 3 |
| RTECS | UQ9451500 |
| TSCA | Yes |
| HS Code | 29331990 |
| Toxicity | rat,LDLo,unreported,600mg/kg (600mg/kg),Biochemical Pharmacology. Vol. 14, Pg. 1325, 1965. |
