625-35-4
(E)-2-Butenoyl chloride
CAS: 625-35-4
Molecular Formula: C4H5ClO
625-35-4 - Names and Identifiers
| Name | (E)-2-Butenoyl chloride |
| Synonyms | CrotonoyL (E)-2-Butenoyl chlor (E)-2-Butenoyl chloride TRANS-CROTONYL CHLORIDE Crotonoyl chloride (E)- 2-Butenoyl chloride, (E)- Crotonyl Chloride, ReMainder Mainly Cis-IsoMer |
| CAS | 625-35-4 |
| EINECS | 234-010-3 |
| InChIKey | RJUIDDKTATZJFE-NSCUHMNNSA-N |
625-35-4 - Physico-chemical Properties
| Molecular Formula | C4H5ClO |
| Molar Mass | 104.53 |
| Density | 1.091 g/mL at 25 °C(lit.) |
| Melting Point | 72-74 °C |
| Boling Point | 120-123 °C(lit.) |
| Flash Point | 95 °F |
| Water Solubility | Reacts with water. |
| Appearance | Form Liquid, color Clear colorless to brown |
| Storage Condition | 2-8°C |
| Stability | Moisture Sensitive |
| Refractive Index | n20/D 1.459(lit.) |
| Physical and Chemical Properties | NIST Chemical Information 2-Butenoyl chloride, (E)-(625-35-4) |
| Use | Uses are commonly used in the preparation of butenoic acid esters and other derivatives |
625-35-4 - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R10 - Flammable R34 - Causes burns R36/37 - Irritating to eyes and respiratory system. R37 - Irritating to the respiratory system |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S28A - S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 2920 8/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 13-19-21 |
| TSCA | Yes |
| HS Code | 29161900 |
| Hazard Class | 8 |
| Packing Group | II |
625-35-4 - Nature
| BRN | 506118 |
Last Update：2024-04-10 22:29:15