i-Butyl bromide
1-Bromo-2-methylpropane
CAS: 78-77-3
Molecular Formula: C4H9Br
i-Butyl bromide - Names and Identifiers
| Name | 1-Bromo-2-methylpropane |
| Synonyms | bromoisobutane Isobutylbromid Isobutylbromide i-Butyl bromide ISOBUTYL BROMIDE Isobutyl Bromide Iso-Butyl bromide 1-Bromo-isobutane 1-Bromo-iso-butame 2-Methylpropylbromide 1-bromo-2-methyl-propan 1-Bromo-2-methylpropane 1-BROMO-2-METHYLPROPANE |
| CAS | 78-77-3 |
| EINECS | 201-141-2 |
| InChI | InChI=1/C4H9Br/c1-4(2)3-5/h4H,3H2,1-2H3 |
| InChIKey | HLVFKOKELQSXIQ-UHFFFAOYSA-N |
i-Butyl bromide - Physico-chemical Properties
| Molecular Formula | C4H9Br |
| Molar Mass | 137.02 |
| Density | 1.26g/mLat 20°C(lit.) |
| Melting Point | -119 °C |
| Boling Point | 90-92°C(lit.) |
| Flash Point | 65°F |
| Water Solubility | 0.51 g/L (18 ºC) |
| Solubility | 0.51g/l slightly soluble |
| Vapor Presure | 41 hPa (20 °C) |
| Appearance | Liquid |
| Color | Clear colorless |
| Merck | 14,5135 |
| BRN | 1730915 |
| Storage Condition | Store below +30°C. |
| Refractive Index | n20/D 1.435(lit.) |
| Physical and Chemical Properties | character colorless liquid. |
| Use | Used as an intermediate in organic synthesis |
i-Butyl bromide - Risk and Safety
| Risk Codes | R11 - Highly Flammable R37 - Irritating to the respiratory system R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 2342 3/PG 2 |
| WGK Germany | 3 |
| RTECS | TX4140000 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 29033036 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
i-Butyl bromide - Upstream Downstream Industry
| Downstream Products | Sibutramine |
i-Butyl bromide - Nature
Open Data Verified Data
colorless liquid. Flammable. The relative density was 1. 264. The refractive index ranges from 1. 435 to 1. 437. Melting Point -118.5 °c. Boiling point 91.5 °c. Slightly soluble in water (0.6g/L), and ethanol, ether and other organic solvents miscible.
Last Update：2024-01-02 23:10:35
i-Butyl bromide - Preparation Method
Open Data Verified Data
The reaction of isobutanol with phosphorus tribromide was prepared.
Last Update：2022-01-01 10:14:42
i-Butyl bromide - Use
Open Data Verified Data
Solvents, intermediates in organic synthesis and medicine.
Last Update：2022-01-01 10:14:43
i-Butyl bromide - Safety
Open Data Verified Data
anesthetic effects were observed at high concentrations.
Last Update：2022-01-01 10:14:43
i-Butyl bromide - 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) |
| Use | 1-bromo-2-methylpropane is a halogenated alkane used in various synthetic formulations. used as intermediate in organic synthesis used as solvent, also used in organic synthesis solvent, organic synthesis and pharmaceutical intermediates. |
| Application | bromoisobutane can be used as a pharmaceutical and chemical synthesis intermediate, such as the preparation of bortezomib intermediate isobutyl boronic acid, or preparation of febuxostat et al. |
| production method | isobutanol was cooled to -10 °c, and phosphorus tribromide was slowly added dropwise to keep the reaction solution below 0 °c. After completion of the dropwise addition, the mixture was naturally warmed to room temperature with stirring, left overnight, and purified by distillation under reduced pressure to obtain 1-bromo-2-methylpropane. |
| category | flammable liquid |
| toxicity grade | poisoning |
| Acute toxicity | abdominal injection-mouse LD50: 1660 mg/kg |
| flammability hazard characteristics | open flame, heat, oxidant flammable; In case of acid, toxic gases containing bromide are emitted by heat |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature, separate from oxidants and acids |
| fire extinguishing agent | water, foam, sand, carbon dioxide, 1211 extinguishing agent |
Last Update：2024-04-09 02:00:11
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Downstream Products for i-Butyl bromide