Overview
5-Methoxyresorcinol is an organic compound derived from resorcinol, featuring a methoxy group at the 5-position of the benzene ring. It serves as a versatile intermediate in fine chemical synthesis and pharmaceutical manufacturing. First identified in the early 20th century, this compound gained industrial significance due to its dual functional groups (hydroxyl and methoxy), which enable diverse chemical modifications. Its production typically involves methylation of resorcinol under controlled conditions.
Physical and Chemical Properties
As a crystalline solid, 5-methoxyresorcinol exhibits typical phenolic properties including weak acidity (pKa ≈ 9.5) and UV absorption at 275 nm. The methoxy group enhances its lipophilicity compared to resorcinol, affecting solubility profiles. Thermal analysis shows stability up to 200°C, with decomposition occurring at higher temperatures. Its redox properties make it useful as a stabilizing agent in formulations where controlled oxidation is required.
Main Applications
In pharmaceuticals, 5-methoxyresorcinol acts as a building block for synthesizing bioactive molecules including kinase inhibitors and antimicrobial agents. The cosmetic industry utilizes it in oxidative hair dyes at concentrations up to 1% as a coupler. Industrial applications include its use as an intermediate for specialty polymers and as a corrosion inhibitor in certain systems. Recent research explores its potential in agricultural chemicals as a bioactive scaffold.
Safety and Storage
Classified as harmful if swallowed (H302) and causes skin irritation (H315), proper handling requires nitrile gloves and chemical goggles. Spills should be contained with inert absorbents and disposed as hazardous waste. For long-term storage, maintain nitrogen atmosphere in tightly sealed amber containers at temperatures below 25°C. Shelf life typically exceeds 24 months when stored correctly, with periodic purity checks recommended for sensitive applications.
B2B Procurement Guide
Industrial buyers should specify required purity (standard 98% or HPLC-grade 99%), packaging (25kg drums or custom quantities), and certificates of analysis including residual solvent profiles. Key suppliers are concentrated in China, India, and Europe, with lead times of 2-4 weeks for standard orders. Sample testing is advised to confirm suitability for specific processes. Some manufacturers offer custom synthesis for derivative compounds.
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