2-Cyano-1,4-diaminobenzene
2,5-Diaminobenzonitrile
CAS: 14346-13-5
Molecular Formula: C7H7N3
2-Cyano-1,4-diaminobenzene - Names and Identifiers
2-Cyano-1,4-diaminobenzene - Physico-chemical Properties
| Molecular Formula | C7H7N3 |
| Molar Mass | 133.15 |
| Density | 1.24 |
| Melting Point | 90-92 °C |
| Boling Point | 371°C |
| Flash Point | 178°C |
| Vapor Presure | 0mmHg at 25°C |
| pKa | 4.05±0.10(Predicted) |
| Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
| Refractive Index | 1.64 |
2-Cyano-1,4-diaminobenzene - Introduction
2,5-diaminobenzonitril is an organic compound with the chemical formula C8H8N2. The following is an introduction to its nature, use, preparation and safety information:
Nature:
1. Appearance: 2,5-diaminobenzonitril is a white solid.
2. Solubility: It is soluble in organic solvents, such as alcohols and ethers, but insoluble in water.
3. Melting point: The melting point of this compound is about 155-157 degrees Celsius.
4. Stability: It is relatively stable under regular temperature and pressure.
Use:
1. Industrial use: 2,5-diaminobenzonitril can be used for the synthesis of dyes and pigments, such as the preparation of organic cis-trans isomer dyes.
2. Medical use: It can be used as a raw material or synthetic intermediate in the pharmaceutical industry for the synthesis of antibiotics, medicines, pesticides and other organic compounds.
Method:
2,5-diaminobenzonitril can be synthesized:
1. Synthesis Method 1: benzaldehyde reacts with ammonia to generate the corresponding hydroxylamine, and then undergoes condensation reaction to obtain 2,5-diaminobenzonium.
2. Synthesis Method 2: benzaldehyde first reacts with sodium nitrite to obtain the corresponding amine, and then reacts with ammonia to obtain 2,5-diaminobenzonitril.
Safety Information:
1. 2,5-diaminobenzonitril is an organic compound with certain toxicity. Appropriate safety measures should be taken to avoid contact with skin, eyes and respiratory tract.
2. During operation or storage, keep away from fire source, heat source and oxidant to avoid toxic gas.
3. Use should wear appropriate personal protective equipment, such as chemical protective glasses, protective gloves and protective masks.
Nature:
1. Appearance: 2,5-diaminobenzonitril is a white solid.
2. Solubility: It is soluble in organic solvents, such as alcohols and ethers, but insoluble in water.
3. Melting point: The melting point of this compound is about 155-157 degrees Celsius.
4. Stability: It is relatively stable under regular temperature and pressure.
Use:
1. Industrial use: 2,5-diaminobenzonitril can be used for the synthesis of dyes and pigments, such as the preparation of organic cis-trans isomer dyes.
2. Medical use: It can be used as a raw material or synthetic intermediate in the pharmaceutical industry for the synthesis of antibiotics, medicines, pesticides and other organic compounds.
Method:
2,5-diaminobenzonitril can be synthesized:
1. Synthesis Method 1: benzaldehyde reacts with ammonia to generate the corresponding hydroxylamine, and then undergoes condensation reaction to obtain 2,5-diaminobenzonium.
2. Synthesis Method 2: benzaldehyde first reacts with sodium nitrite to obtain the corresponding amine, and then reacts with ammonia to obtain 2,5-diaminobenzonitril.
Safety Information:
1. 2,5-diaminobenzonitril is an organic compound with certain toxicity. Appropriate safety measures should be taken to avoid contact with skin, eyes and respiratory tract.
2. During operation or storage, keep away from fire source, heat source and oxidant to avoid toxic gas.
3. Use should wear appropriate personal protective equipment, such as chemical protective glasses, protective gloves and protective masks.
Last Update：2024-04-09 02:00:42
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