4-methyl-2-nitrobenzoic acid
4-methyl-2-nitrobenzoic acid
CAS: 27329-27-7
Molecular Formula: C8H7NO4
4-methyl-2-nitrobenzoic acid - Names and Identifiers
| Name | 4-methyl-2-nitrobenzoic acid |
| Synonyms | NSC 80180 2-Nitro-p-toluic acid 4-methyl-2-nitrobenzoic acid Benzoic acid, 4-methyl-2-nitro- 4-METHYL-2-NITROBENZOIC ACID 97 |
| CAS | 27329-27-7 |
4-methyl-2-nitrobenzoic acid - Physico-chemical Properties
| Molecular Formula | C8H7NO4 |
| Molar Mass | 181.15 |
| Density | 1.392±0.06 g/cm3(Predicted) |
| Melting Point | 160-164 °C (lit.) |
| Boling Point | 367.6±30.0 °C(Predicted) |
| pKa | 2.36±0.25(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
4-methyl-2-nitrobenzoic acid - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R43 - May cause sensitization by skin contact |
| Safety Description | 37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
4-methyl-2-nitrobenzoic acid - Introduction
4-methyl-2-nitrobenzoic acid (4-methyl-2-nitrobenzoic acid) is an organic compound. The following is a description of the properties, uses, preparation and safety information of the compound:
Nature:
-Appearance: It is colorless to yellow needle-like crystals or crystalline powder.
-Solubility: It is not soluble in water, but can be dissolved in organic solvents such as alcohols, ethers and esters.
-Melting point: Its melting point is about 162-166 degrees Celsius.
-Stability: 4-methyll-2-nitrobenzoic acid is relatively stable, but it may decompose or react under high temperature, strong acid or strong alkali conditions.
Use:
4-methyl-2-nitrobenzoic acid is often used as an intermediate in organic synthesis in chemical laboratories. It can be used to synthesize other organic compounds, such as dyes, drugs and pesticides.
Method:
The method for preparing 4-methyll-2-nitrobenzoic acid can be obtained by nitration of p-Toluic acid. The specific step is to first dissolve the methyl benzoic acid in concentrated nitric acid, and then slowly add sulfuric acid into the mixture. The reaction process needs to be carried out under cooling conditions. Finally, the pure product of 4-methyl-2-nitrobenzoic acid was obtained by filtration and crystallization.
Safety Information:
4-methyl-2-nitrobenzoic acid is a chemical that requires appropriate safety measures during operation. Wear appropriate protective equipment such as lab gloves, safety glasses and lab coats. In addition, it should be used in well-ventilated conditions, avoiding inhalation or contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water and seek medical help. When stored, it should be placed in a closed container, away from fire and oxidizing agents.
Nature:
-Appearance: It is colorless to yellow needle-like crystals or crystalline powder.
-Solubility: It is not soluble in water, but can be dissolved in organic solvents such as alcohols, ethers and esters.
-Melting point: Its melting point is about 162-166 degrees Celsius.
-Stability: 4-methyll-2-nitrobenzoic acid is relatively stable, but it may decompose or react under high temperature, strong acid or strong alkali conditions.
Use:
4-methyl-2-nitrobenzoic acid is often used as an intermediate in organic synthesis in chemical laboratories. It can be used to synthesize other organic compounds, such as dyes, drugs and pesticides.
Method:
The method for preparing 4-methyll-2-nitrobenzoic acid can be obtained by nitration of p-Toluic acid. The specific step is to first dissolve the methyl benzoic acid in concentrated nitric acid, and then slowly add sulfuric acid into the mixture. The reaction process needs to be carried out under cooling conditions. Finally, the pure product of 4-methyl-2-nitrobenzoic acid was obtained by filtration and crystallization.
Safety Information:
4-methyl-2-nitrobenzoic acid is a chemical that requires appropriate safety measures during operation. Wear appropriate protective equipment such as lab gloves, safety glasses and lab coats. In addition, it should be used in well-ventilated conditions, avoiding inhalation or contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water and seek medical help. When stored, it should be placed in a closed container, away from fire and oxidizing agents.
Last Update：2024-04-09 20:52:54
