Overview
2-Methoxynaphthalene, also known as β-naphthyl methyl ether or Nerolin, is an aromatic organic compound derived from naphthalene. It is widely used in the synthesis of pharmaceuticals, fragrances, and dyes due to its stable structure and reactivity. The compound exhibits a characteristic floral odor, making it valuable in perfumery. Industrially, 2-methoxynaphthalene is produced by methylation of 2-naphthol. Its purity and consistency are critical for high-end applications, particularly in drug manufacturing. Suppliers typically offer technical (≥95%) and pharmaceutical grades (≥98%), with the latter requiring stringent quality controls.
Physical and Chemical Properties
2-Methoxynaphthalene is a white crystalline solid at room temperature, with a melting point of 72-74°C and a boiling point of 274°C. Its molecular weight is 158.20 g/mol, and it has a density of 1.096 g/cm³. The compound is soluble in common organic solvents like ethanol and ether but insoluble in water. Chemically, it is stable under normal conditions but may decompose when exposed to strong oxidizers. Its aromatic ring structure allows for electrophilic substitution reactions, which are exploited in synthetic chemistry. The methoxy group enhances its solubility and reactivity in organic matrices.
Main Applications
The primary use of 2-methoxynaphthalene is as an intermediate in pharmaceutical synthesis, particularly for anti-inflammatory drugs like naproxen. Its role in fragrance formulations is notable, contributing to floral and citrus notes in perfumes and soaps. In agrochemicals, it serves as a precursor for certain pesticides. The compound’s stability and low toxicity also make it suitable for research applications, such as studying reaction mechanisms in organic chemistry. Industrial buyers should specify purity requirements based on end-use, as impurities can affect downstream processes.
Safety and Storage
2-Methoxynaphthalene is generally low in toxicity but may cause irritation upon prolonged skin contact or inhalation. Personal protective equipment (PPE), including gloves and goggles, is recommended during handling. Proper ventilation is essential to minimize exposure to dust or vapors. Storage should be in tightly sealed containers, away from direct sunlight and oxidizing agents. The compound is not classified as hazardous under GHS, but spillage should be contained with inert absorbents. Disposal must comply with local regulations for organic waste.
B2B Procurement Guide
When procuring 2-methoxynaphthalene, verify the supplier’s certifications (e.g., ISO, GMP) and request batch-specific COAs (Certificates of Analysis) to confirm purity. Pharmaceutical-grade material typically commands a higher price due to additional testing requirements. Bulk purchases (≥100 kg) often qualify for discounts, but ensure the supplier can guarantee consistent quality across batches. Shipping should be in moisture-proof packaging, preferably with desiccants. For international transactions, check compliance with REACH or other regional chemical regulations.
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