DL-METHYLETHYLACETIC ACID
DL-2-Methylbutyric acid
CAS: 600-07-7
Molecular Formula: C5H10O2
DL-METHYLETHYLACETIC ACID - Names and Identifiers
DL-METHYLETHYLACETIC ACID - Physico-chemical Properties
| Molecular Formula | C5H10O2 |
| Molar Mass | 102.13 |
| Density | 0.936g/mLat 25°C(lit.) |
| Melting Point | -70°C |
| Boling Point | 176-177°C(lit.) |
| Flash Point | 165°F |
| Vapor Presure | 0.5 mm Hg ( 20 °C) |
| pKa | 4.8(at 25℃) |
| Refractive Index | n20/D 1.405(lit.) |
| Physical and Chemical Properties | Colorless liquid. Boiling point of 177 deg C, 84 deg C (2.8kPa), relative density (20/17 deg C) 0.938, refractive index (nD20)1.4055. Soluble in water, ethanol, ether. |
DL-METHYLETHYLACETIC ACID - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R21/22 - Harmful in contact with skin and if swallowed. R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 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.) |
| UN IDs | UN 3265 8/PG 3 |
| WGK Germany | 1 |
| RTECS | EK7897000 |
| FLUKA BRAND F CODES | 13 |
| Hazard Class | 8 |
| Packing Group | III |
DL-METHYLETHYLACETIC ACID - Reference Information
| FEMA | 2695 | 2-METHYLBUTYRIC ACID |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: iaspub.epa.gov (external link) |
| use | organic synthesis intermediate. |
| Production method | 2-chlorobutane is made into Grignard reagent, which reacts with carbon dioxide, and the reaction mixture is solved with 25% sulfuric acid to generate 2-Methylbutyric acid. Yield 76-86%. |
Last Update：2024-04-09 21:11:58
