Pyrazole
- Product NamePyrazole
- CAS288-13-1
- CBNumberCB6689669
- MFC3H4N2
- MW68.08
- EINECS206-017-1
- MDL NumberMFCD00005234
- MOL File288-13-1.mol
Chemical Properties
| Melting point: | 67-70 °C (lit.) |
| Boiling point: | 186-188 °C (lit.) |
| Density | 1.4088 (rough estimate) |
| vapor pressure | 21Pa at 20℃ |
| refractive index | 1.4203 |
| Flash point: | 186-188°C |
| storage temp. | Store below +30°C. |
| solubility | Chloroform, Methanol |
| form | Crystals or Crystalline Powder |
| pka | 2.49(at 25℃) |
| color | White to yellow |
| Water Solubility | SOLUBLE |
| Sensitive | Hygroscopic |
| Merck | 14,7960 |
| BRN | 103775 |
| InChI | 1S/C3H4N2/c1-2-4-5-3-1/h1-3H,(H,4,5) |
| InChIKey | WTKZEGDFNFYCGP-UHFFFAOYSA-N |
| SMILES | c1cn[nH]c1 |
| LogP | 0.33 at 25℃ |
| CAS DataBase Reference | 288-13-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 1H-Pyrazole(288-13-1) |
| EPA Substance Registry System | Pyrazole (288-13-1) |
Safety
| Symbol(GHS) |
   GHS05,GHS06,GHS08 |
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| Signal word | Danger | |||||||||
| Hazard statements | H302-H311-H315-H318-H373-H412 | |||||||||
| Precautionary statements | P273-P280-P301+P312-P302+P352+P312-P305+P351+P338-P314 | |||||||||
| target organs | spleen,Thyroid | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-36/37/38-52-20/21/22 | |||||||||
| Safety Statements | 26-36/37-61-37/39-36 | |||||||||
| RIDADR | 2811 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | UQ4900000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 6.1(b) | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29331990 | |||||||||
| Storage Class |
6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
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| Hazard Classifications |
Acute Tox. 3 Dermal Acute Tox. 4 Oral Aquatic Chronic 3 Eye Dam. 1 Skin Irrit. 2 STOT RE 1 |
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| Toxicity | LD50 (24 hr) in rats, mice (mmol/kg): 19, 21 i.v.; 21, 22 orally (Magnussen) | |||||||||
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704: |
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