3-Bromopropionic acid
3-Bromopropionic acid
CAS: 590-92-1
Molecular Formula: C3H5BrO2
3-Bromopropionic acid - Names and Identifiers
3-Bromopropionic acid - Physico-chemical Properties
| Molecular Formula | C3H5BrO2 |
| Molar Mass | 152.97 |
| Density | 1.48g/mLat 25°C(lit.) |
| Melting Point | 58-62°C(lit.) |
| Boling Point | 140-142 °C (45 mmHg) |
| Flash Point | 150°F |
| Water Solubility | 0.1 g/mL |
| Solubility | H2O: 0.1g/mL, clear |
| Vapor Presure | 0.0134mmHg at 25°C |
| Appearance | Crystals or Crystalline Powder |
| Color | White to slightly yellow |
| Merck | 14,1433 |
| BRN | 1071333 |
| pKa | 4.00(at 25℃) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.4753 (estimate) |
| Physical and Chemical Properties |
|
| Use | For Organic synthesis |
3-Bromopropionic acid - Risk and Safety
| Risk Codes | R11 - Highly Flammable 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 3261 8/PG 2 |
| WGK Germany | 3 |
| RTECS | UE7875000 |
| TSCA | Yes |
| HS Code | 29159080 |
| Hazard Note | Corrosive/Highly Flammable |
| Hazard Class | 4.1 |
| Packing Group | III |
3-Bromopropionic acid - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | 3-bromopropionic acid, also known as β-bromopropionic acid. White patchy crystals. Soluble in water, alcohol, ether, chloroform, benzene. In alkaline solution hydrolysis to produce hydroxypropionic acid, corrosive. For organic synthesis. From the reaction of acrylonitrile and hydrogen bromide, Bromo Propionitrile is obtained by hydrolysis. |
| Application | 3-bromopropionic acid is a widely used chemical intermediate. As a starting material can be synthesized Ester, acid halide, amide and other derivatives; Active group bromine can be a series of reactions, mainly used in pesticide, medicine and other fields. Such as pesticides of piroxobin grass, furazolidone and so on. |
| Use | for organic synthesis |
| production method | 3-bromopropionic acid is obtained by reacting acrylonitrile with hydrogen bromide to obtain bromopropionitrile and hydrolyzing it. Acrylonitrile was added to boiling hydrobromic acid, and the mixture was refluxed and reacted at 130 ° C. For 6H. The solid obtained by filtration was extracted with ethanol, and the crude product obtained by recovering ethanol was distilled under reduced pressure. 3-bromopropionic acid can also be produced in a yield of more than 40% by heating 2-cyanoethanol under reflux with 80% hydrobromic acid for 2H. |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | intraperitoneal-mouse LDL0: 500 mg/kg |
| flammability hazard characteristics | combustible flame; Toxic bromide smoke from thermal decomposition |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Separate from food, oxidant and alkali |
| fire extinguishing agent | foam, dry powder, carbon dioxide, water mist |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 15:16:51
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View History
3-Bromopropionic acid
5-CHLOROMETHYLFLUORESCEIN DIACETATE
2-甲基恶唑-5-羧基酸
1-Cyclopentyl-L-Proline Methyl Ester
5-CHLOROMETHYLFLUORESCEIN DIACETATE
2-甲基恶唑-5-羧基酸
1-Cyclopentyl-L-Proline Methyl Ester