Overview
Methyl benzoate is an ester derived from benzoic acid and methanol. It is a colorless to pale yellow liquid with a pleasant, fruity aroma reminiscent of ylang-ylang and tuberose. The compound is naturally found in some essential oils but is primarily synthesized for industrial use. Due to its stability and solubility properties, methyl benzoate is widely employed in the food, fragrance, and pharmaceutical industries. It is also used as a solvent for cellulose esters and resins, making it valuable in coatings and adhesives.
Physical and Chemical Properties
Methyl benzoate has a molecular weight of 136.15 g/mol and a density of 1.088 g/cm³. It melts at -12 °C and boils at 199 °C, exhibiting low volatility under standard conditions. The compound is slightly soluble in water but readily dissolves in most organic solvents, including ethanol and ether. Its aromatic structure contributes to its stability and resistance to oxidation. Methyl benzoate is flammable and should be handled with care to avoid ignition. The ester’s low toxicity makes it suitable for food and cosmetic applications, though industrial use requires proper ventilation.
Main Applications
In the food industry, methyl benzoate serves as a flavoring agent for candies, baked goods, and beverages, imparting a sweet, fruity note. It is also a key component in perfumery, where it adds a floral accent to fragrances. Industrially, the compound acts as a solvent for cellulose derivatives and synthetic resins. It is an intermediate in the synthesis of pesticides, pharmaceuticals, and dyes. Recent research explores its potential as a green solvent in organic chemistry due to its low environmental impact.
Safety and Storage
Methyl benzoate is generally regarded as safe (GRAS) for food use in small quantities. However, prolonged exposure to concentrated vapors may cause respiratory or skin irritation. Industrial handlers should wear gloves, goggles, and respirators as needed. The liquid should be stored in tightly sealed containers away from heat sources and open flames. Compatibility with common metals and plastics makes stainless steel or polyethylene containers ideal. Spills should be contained with absorbent materials and disposed of according to local regulations.
B2B Procurement Guide
When sourcing methyl benzoate, prioritize suppliers with ISO or GMP certifications to ensure quality and consistency. Key specifications include purity (typically ≥98%), water content, and absence of heavy metals. Bulk purchases (drums or totes) often reduce costs, but verify logistics for safe transport. Request Safety Data Sheets (SDS) and certificates of analysis (CoA) for compliance with industry standards. Spot prices fluctuate with benzene (raw material) market trends, so monitor chemical indices for optimal timing.
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