2873-18-9
2-Bromo-5-chlorothiophene
CAS: 2873-18-9
Molecular Formula: C4H2BrClS
2873-18-9 - Names and Identifiers
| Name | 2-Bromo-5-chlorothiophene |
| Synonyms | 2-Brom-5-chlorthiophen Rivaroxaban Impurity 123 α-Bromo-α-chlorothiophene 2-Bromo-5-chlorothiophene 5-Bromo-2-chlorothiophene 2-BROMO-5-CHLOROTHIOPHENE 2-Chloro-5-bromothiophene 2-CHLORO-5-BROMO THIOPHENE Thiophene,2-bromo-5-chloro- Thiophene, 2-bromo-5-chloro- |
| CAS | 2873-18-9 |
| EINECS | 220-708-5 |
| InChI | InChI=1/C4H2BrClS/c5-3-1-2-4(6)7-3/h1-2H |
2873-18-9 - Physico-chemical Properties
| Molecular Formula | C4H2BrClS |
| Molar Mass | 197.48 |
| Density | 1.803 g/mL at 25 °C (lit.) |
| Melting Point | -20°C |
| Boling Point | 69-70 °C/18 mmHg (lit.) |
| Flash Point | 185°F |
| Vapor Presure | 1.46mmHg at 25°C |
| Appearance | liquid |
| Specific Gravity | 1.803 |
| BRN | 109897 |
| Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
| Refractive Index | n20/D 1.596(lit.) |
2873-18-9 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | NA 1993 / PGIII |
| WGK Germany | 3 |
| HS Code | 29349990 |
| Hazard Note | Harmful |
| Hazard Class | IRRITANT |
2873-18-9 - Introduction
It is an organic compound with the chemical formula C4H2BrClS. It is a yellow crystalline powder with a pungent odor.
The compound has many applications in the field of organic synthesis. It can be used as an intermediate for the synthesis of compounds with pharmaceutical or pesticidal activity. In addition, it can also be used for dye synthesis, metal organic compound synthesis, etc.
There are two main methods of preparation. One method is by reacting 2-chloro-5-chlorothiophene with sodium bromate. Another method is obtained by nucleophilic substitution of 2-thiophenemethanol with chloromethyl borate and thioester.
The compound has limited safety information. During operation, care should be taken to avoid skin contact and inhalation, and appropriate protective equipment should be worn, such as laboratory gloves and protective glasses. In case of contact with skin or eyes, rinse with water and seek medical attention. In addition, it should be stored in a dry, cool place, away from fire and oxidizing agents. Detailed safety information and operating instructions can be found in the safety data sheet of the compound.
The compound has many applications in the field of organic synthesis. It can be used as an intermediate for the synthesis of compounds with pharmaceutical or pesticidal activity. In addition, it can also be used for dye synthesis, metal organic compound synthesis, etc.
There are two main methods of preparation. One method is by reacting 2-chloro-5-chlorothiophene with sodium bromate. Another method is obtained by nucleophilic substitution of 2-thiophenemethanol with chloromethyl borate and thioester.
The compound has limited safety information. During operation, care should be taken to avoid skin contact and inhalation, and appropriate protective equipment should be worn, such as laboratory gloves and protective glasses. In case of contact with skin or eyes, rinse with water and seek medical attention. In addition, it should be stored in a dry, cool place, away from fire and oxidizing agents. Detailed safety information and operating instructions can be found in the safety data sheet of the compound.
Last Update：2024-04-09 20:52:54
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