1-Ethylpyrazole
- CAS NO.：2817-71-2
- Empirical Formula: C5H8N2
- Molecular Weight: 96.13
- MDL number: MFCD03444367
- EINECS: 808-102-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-14 15:27:00
What is 1-Ethylpyrazole?
Synthesis Reference(s)
Synthetic Communications, 20, p. 2849, 1990 DOI: 10.1080/00397919008051498
Properties of 1-Ethylpyrazole
| Melting point: | 82.75°C (estimate) |
| Boiling point: | 137°C(lit.) |
| Density | 0.9537 |
| refractive index | 1.4670 to 1.4710 |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 2.27±0.10(Predicted) |
| form | clear liquid to cloudy liquid |
| color | Colorless to Light yellow |
Safety information for 1-Ethylpyrazole
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. |
Computed Descriptors for 1-Ethylpyrazole
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