PYRIDINE-3,4-DICARBOXYLIC ANHYDRIDE
3,4-Pyridinedicarboxylicanhydride
CAS: 4664-08-8
Molecular Formula: C7H3NO3
PYRIDINE-3,4-DICARBOXYLIC ANHYDRIDE - Names and Identifiers
PYRIDINE-3,4-DICARBOXYLIC ANHYDRIDE - Physico-chemical Properties
| Molecular Formula | C7H3NO3 |
| Molar Mass | 149.1 |
| Density | 1.556±0.06 g/cm3(Predicted) |
| Melting Point | 75-77 °C (lit.) |
| Boling Point | 139-142 °C(Press: 12 Torr) |
| Water Solubility | Decomposes in water. |
| pKa | -0.38±0.20(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Sensitive | Moisture Sensitive |
| MDL | MFCD00010680 |
PYRIDINE-3,4-DICARBOXYLIC ANHYDRIDE - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - 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. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| HS Code | 29333990 |
| Hazard Class | IRRITANT |
PYRIDINE-3,4-DICARBOXYLIC ANHYDRIDE - Introduction
3, the chemical formula is C7H3NO3, is an organic compound. The following is a detailed description of its nature, use, preparation and safety information:
Nature:
-Appearance: 3, it is a white to light yellow solid substance.
-Solubility: It can be dissolved in organic solvents, such as ethanol, xylene, etc., but it has poor solubility in water.
-melting point: 3, melting point is about 197-202 ℃.
Use:
3, in the field of chemistry and medicine has some important uses:
-Synthesis intermediate: As an intermediate in organic synthesis, it can be used to synthesize other organic compounds.
-Drug research: It is used as a drug precursor in drug research for the synthesis of specific drugs or active compounds.
-Polymer materials: In materials science, 3, it can be used to prepare flexible or rigid polymers.
Preparation Method:
A general method for preparing 3, is to synthesize by the condensation reaction of 3,4-pyridinedicarboxylic acid with an acid catalyst (such as phosphoric acid). Specific steps are as follows:
1. Add 3,4-pyridinedicarboxylic acid to a reaction vessel with an appropriate acid catalyst.
2. The reaction is carried out at an appropriate temperature, usually under high temperature conditions.
3. After the reaction is completed, the product of 3, is obtained by filtration or crystallization.
Safety Information:
For some basic safety operations, the following are safety precautions:
-Avoid inhalation or contact with skin: 3. May cause irritation to skin and respiratory system. Wear appropriate protective gloves and respiratory protection during operation.
-avoid consumption: 3, is a chemical substance, should not be eaten or ingested.
-Storage: It should be stored in a dry, well-ventilated place, and away from fire and combustibles.
Please note that this information is for informational purposes only. When operating or using 3, be sure to follow laboratory safety specifications and carefully read the relevant chemical safety data sheets (SDS) and instructions for use.
Nature:
-Appearance: 3, it is a white to light yellow solid substance.
-Solubility: It can be dissolved in organic solvents, such as ethanol, xylene, etc., but it has poor solubility in water.
-melting point: 3, melting point is about 197-202 ℃.
Use:
3, in the field of chemistry and medicine has some important uses:
-Synthesis intermediate: As an intermediate in organic synthesis, it can be used to synthesize other organic compounds.
-Drug research: It is used as a drug precursor in drug research for the synthesis of specific drugs or active compounds.
-Polymer materials: In materials science, 3, it can be used to prepare flexible or rigid polymers.
Preparation Method:
A general method for preparing 3, is to synthesize by the condensation reaction of 3,4-pyridinedicarboxylic acid with an acid catalyst (such as phosphoric acid). Specific steps are as follows:
1. Add 3,4-pyridinedicarboxylic acid to a reaction vessel with an appropriate acid catalyst.
2. The reaction is carried out at an appropriate temperature, usually under high temperature conditions.
3. After the reaction is completed, the product of 3, is obtained by filtration or crystallization.
Safety Information:
For some basic safety operations, the following are safety precautions:
-Avoid inhalation or contact with skin: 3. May cause irritation to skin and respiratory system. Wear appropriate protective gloves and respiratory protection during operation.
-avoid consumption: 3, is a chemical substance, should not be eaten or ingested.
-Storage: It should be stored in a dry, well-ventilated place, and away from fire and combustibles.
Please note that this information is for informational purposes only. When operating or using 3, be sure to follow laboratory safety specifications and carefully read the relevant chemical safety data sheets (SDS) and instructions for use.
Last Update：2024-04-09 15:17:58
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Product Name: Pyridine-3,4-Dicarboxylic Anhydride Visit Supplier Webpage Request for quotationCAS: 4664-08-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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