Overview
3-Methylbenzophenone is an organic compound belonging to the benzophenone family. It is widely utilized in industrial applications due to its photoinitiator properties and role as an intermediate in chemical synthesis. The compound is particularly valued in the production of UV-curable coatings, pharmaceuticals, and fragrances. Its molecular structure includes a methyl group attached to the benzene ring, which enhances its reactivity and solubility in organic solvents. This makes it a versatile component in various chemical processes. The compound is typically supplied as a crystalline powder with a pale yellow to white appearance.
Physical and Chemical Properties
3-Methylbenzophenone exhibits a melting point range of 28-32°C and a boiling point of 310-312°C. Its density is approximately 1.06 g/cm³, and it is soluble in common organic solvents such as ethanol and acetone but insoluble in water. These properties make it suitable for applications requiring solubility in non-aqueous systems. The compound is stable under normal conditions but may degrade upon prolonged exposure to UV light or extreme temperatures. Its UV absorption characteristics are particularly useful in photoinitiator applications, where it facilitates polymerization reactions in coatings and inks.
Main Applications
3-Methylbenzophenone is primarily used as a photoinitiator in UV-curable coatings and inks. Its ability to absorb UV light and initiate polymerization reactions makes it indispensable in industries requiring fast-curing materials. Additionally, it serves as an intermediate in the synthesis of pharmaceuticals and fragrances, where its reactive methyl group is leveraged for further chemical modifications. In the fragrance industry, the compound contributes to the synthesis of aromatic compounds with complex scent profiles. Its role in pharmaceuticals often involves serving as a building block for active ingredients, though specific applications depend on the target molecule.
Safety and Storage
Handling 3-Methylbenzophenone requires precautions to avoid inhalation, skin contact, or ingestion. Personal protective equipment (PPE) such as gloves, goggles, and lab coats should be worn during use. The compound should be stored in a cool, dry place away from direct sunlight and moisture to prevent degradation. In case of exposure, immediate washing with soap and water is recommended for skin contact, while inhalation should be addressed by moving to fresh air. Proper disposal methods must be followed to minimize environmental impact, adhering to local regulations for chemical waste.
B2B Procurement Guide
When procuring 3-Methylbenzophenone, B2B buyers should prioritize suppliers with certifications such as ISO or GMP to ensure quality and consistency. Key factors to verify include the CAS number (643-65-2), purity levels (typically 98% or higher), and packaging specifications. Price ranges vary based on quantity and purity, with bulk purchases often offering cost advantages. Buyers should also consider logistical factors such as storage requirements and shipping conditions to maintain product integrity. Requesting samples for testing can help assess suitability for specific applications before large-scale procurement.
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