13958-91-3
3,5-Dibromopyridine-4-carboxylic acid
CAS: 13958-91-3
Molecular Formula: C6H3Br2NO2
13958-91-3 - Names and Identifiers
13958-91-3 - Physico-chemical Properties
| Molecular Formula | C6H3Br2NO2 |
| Molar Mass | 280.9 |
| Density | 2.202 |
| Melting Point | 62-64℃ |
| Boling Point | 409.99°C at 760 mmHg |
| Flash Point | 201.755°C |
| Vapor Presure | 0mmHg at 25°C |
| Appearance | White to yellow or brown powder or crystal |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Refractive Index | 1.652 |
| MDL | MFCD08689615 |
13958-91-3 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R43 - May cause sensitization by skin contact |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves. |
| WGK Germany | 3 |
13958-91-3 - Introduction
3,5-dibromo-4-picolinic acid, chemical formula C7H4Br2NO2, is an organic compound. The following is an introduction to its nature, use, formulation and safety information:
Nature:
1. Appearance: 3,5-dibromo-4-picolinic acid is a white crystalline solid.
2. Solubility: It is soluble in organic solvents such as ethanol, dimethylformamide and dichloromethane, but insoluble in water.
3. melting point: its melting point is about 200-203 ℃.
Use:
1. Organic synthesis: 3,5-dibromo-4-picolinic acid is commonly used as an intermediate for certain organic compounds, such as the synthesis of glyphosate (a herbicide widely used in agriculture).
2. Pharmaceutical field: It can also be used to manufacture certain drugs, such as antiepileptic drugs.
Preparation Method:
A common method for preparing 3,5-dibromo-4-picolinic acid is by bromination of 4-picolinic acid. First, 4-picolinic acid is reacted with a brominating agent under appropriate reaction conditions to form 3-bromo-4-picolinic acid. The 3-bromo-4-picolinic acid is then further reacted with a brominating agent to give the target product 3,5-dibromo-4-picolinic acid.
Safety Information:
1. 3,5-dibromo-4-picolinic acid is irritating, avoid direct contact with skin and eyes. Wear appropriate personal protective equipment such as protective gloves and goggles during operation.
2. in the process of storage and handling, to avoid contact with strong oxidants, strong acid and strong alkali, so as to avoid dangerous reaction.
3. In the event of accidental exposure to the compound, immediately flush the affected area with plenty of water and seek medical help.
Nature:
1. Appearance: 3,5-dibromo-4-picolinic acid is a white crystalline solid.
2. Solubility: It is soluble in organic solvents such as ethanol, dimethylformamide and dichloromethane, but insoluble in water.
3. melting point: its melting point is about 200-203 ℃.
Use:
1. Organic synthesis: 3,5-dibromo-4-picolinic acid is commonly used as an intermediate for certain organic compounds, such as the synthesis of glyphosate (a herbicide widely used in agriculture).
2. Pharmaceutical field: It can also be used to manufacture certain drugs, such as antiepileptic drugs.
Preparation Method:
A common method for preparing 3,5-dibromo-4-picolinic acid is by bromination of 4-picolinic acid. First, 4-picolinic acid is reacted with a brominating agent under appropriate reaction conditions to form 3-bromo-4-picolinic acid. The 3-bromo-4-picolinic acid is then further reacted with a brominating agent to give the target product 3,5-dibromo-4-picolinic acid.
Safety Information:
1. 3,5-dibromo-4-picolinic acid is irritating, avoid direct contact with skin and eyes. Wear appropriate personal protective equipment such as protective gloves and goggles during operation.
2. in the process of storage and handling, to avoid contact with strong oxidants, strong acid and strong alkali, so as to avoid dangerous reaction.
3. In the event of accidental exposure to the compound, immediately flush the affected area with plenty of water and seek medical help.
Last Update：2024-04-09 21:01:54
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Mobile: +86-18621343501
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Wechat: 18621343501
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Product Name: 3,5-Dibromoisonicotinic Acid Visit Supplier Webpage Request for quotation
CAS: 13958-91-3
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CAS: 13958-91-3
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