2-Bromothiophene - Names and IdentifiersName2-BromothiopheneSynonymsINDIP-0202-Bromothiophene2-
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| Name | 2-Bromothiophene |
| Synonyms | INDIP-020 2-Bromothiophene 2-BROMOTHIOPHENE 2-BROMO THIOPHENE 2-Thienyl bromide 2-THIENYL BROMIDE TIMTEC-BB SBB003931 2 - broMine thiophene Clopidogrel Impurity 74 |
| CAS | 1003-09-4 |
| EINECS | 213-699-4 |
| InChI | InChI=1/C4H3BrS/c5-4-2-1-3-6-4/h1-3H |
| InChIKey | TUCRZHGAIRVWTI-UHFFFAOYSA-N |
| Molecular Formula | C4H3BrS |
| Molar Mass | 163.04 |
| Density | 1.684 g/mL at 25 °C (lit.) |
| Melting Point | -10 °C |
| Boling Point | 149-151 °C (lit.) |
| Flash Point | 140°F |
| Water Solubility | IMMISCIBLE |
| Vapor Presure | 4.99mmHg at 25°C |
| Appearance | Liquid |
| Specific Gravity | 1.684 |
| Color | Clear colorless to slightly brownish |
| BRN | 104663 |
| Storage Condition | 2-8°C |
| Sensitive | Light Sensitive |
| Refractive Index | n20/D 1.586(lit.) |
| Physical and Chemical Properties | Property: colorless to light yellow liquid |
| Risk Codes | R10 - Flammable R25 - Toxic if swallowed R41 - Risk of serious damage to eyes R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36/37/38 - Irritating to eyes, respiratory system and skin. R23/24 - R22 - Harmful if swallowed R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| 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.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S16 - Keep away from sources of ignition. S36 - Wear suitable protective clothing. |
| UN IDs | UN 2929 6.1/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 8 |
| TSCA | T |
| HS Code | 29349990 |
| Hazard Note | Irritant |
| Hazard Class | 6.1 |
| Packing Group | II |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for organic synthesis. use as an intermediate of the antithrombotic drug clopidogrel 2-thienyl Ester was prepared with CuBr-LiBr and chloroform-treated Grignard reagents. |
| production method | results from bromination of thiophene. Thiophene was dissolved in acetic acid and a solution of bromine in glacial acetic acid was added below 10 °c. Water was then added to the reaction mixture to precipitate an oily liquid. Extract with diethyl ether. The acetic acid was removed by adding potassium carbonate to the extract, dried, distilled off diethyl ether, and then distilled under reduced pressure to obtain 2-46 ° C. (1.73kPa) fractions to obtain 2-bromothiophene in a yield of 55%. |
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