Ortho Toluic Acid (CAS No. 118 - 90 - 1) is a significant organic compound. It appears as a white to off - white crystalline powder. The molecular formula of ortho toluic acid is C₈H₈O₂, and its molecular weight is approximately 136.15 g/mol. It has a melting point in the range of 102 - 105°C and a boiling point around 259°C. This product features high purity, which ensures its quality and performance in various applications. It is soluble in organic solvents such as ethanol, ether, and acetone, while having limited solubility in water.
1. **In the Pharmaceutical Industry**: Ortho toluic acid serves as an important intermediate in the synthesis of various drugs. It participates in the production of anti - inflammatory and analgesic medications. Its chemical structure allows it to react with other compounds to form complex drug molecules with specific pharmacological activities.
2. **In the Dye Industry**: It is used as a raw material for the synthesis of certain dyes. The unique chemical properties of ortho toluic acid enable it to contribute to the color - forming and stability of dyes, resulting in vibrant and long - lasting colors in textile and other dyeing processes.
3. **In the Fragrance Industry**: As a component in the synthesis of some fragrance compounds, ortho toluic acid imparts a unique and pleasant scent note. It can be used in the formulation of high - end perfumes and scented products.
1. **Handling Precautions**: When handling ortho toluic acid, proper personal protective equipment (PPE) should be worn, including gloves, goggles, and a lab coat. This is to prevent direct contact with the skin, eyes, and inhalation of dust particles.
2. **Storage**: Store the product in a cool, dry, and well - ventilated place. Keep it away from sources of ignition and incompatible substances. It should be stored in a tightly sealed container to prevent moisture absorption and contamination.
3. **Reaction Conditions**: In chemical reactions, the appropriate reaction conditions need to be carefully controlled, such as temperature, pressure, and reaction time. Follow the standard chemical reaction procedures and use appropriate catalysts if necessary.
1. **Pharmaceutical Synthesis Case**: A pharmaceutical company was engaged in the development of a new anti - inflammatory drug. They used ortho toluic acid as a key intermediate. By controlling the reaction conditions precisely, they were able to synthesize the target drug molecule with high yield and purity. The final product passed the pre - clinical trials successfully, showing significant anti - inflammatory effects. The use of high - quality ortho toluic acid ensured the stability and reproducibility of the synthesis process, which is crucial for large - scale production.
2. **Dye Manufacturing Case**: A dye manufacturer used ortho toluic acid to produce a new type of red dye. Through a series of chemical reactions, the ortho toluic acid was incorporated into the dye structure, resulting in a dye with excellent color fastness and brightness. This new dye was well - received in the textile market, as it could meet the high - quality requirements of customers for colored textiles.
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