MEQUINOL POWDER

Mequinol is a white crystalline powder or flake, known by synonyms like 4-methoxyphenol or hydroquinone monomethyl ether, that acts as a skin-lightening agent and a polymerization inhibitor. In cosmetics, it inhibits melanin production to lighten skin and is often formulated with tretinoin; it’s also used in the chemical industry as an antioxidant and a stabilizer for plastics and resins. Chemical and physical properties Appearance: White flake or waxy crystalMolecular Formula: \(C_{7}H_{8}O_{2}\)Synonyms: 4-Methoxyphenol, Hydroquinone Monomethyl Ether (MEHQ)CAS Number: 150-76-5Solubility: Soluble in oil, ethanol, and other organic solvents; slightly soluble in water Primary uses Cosmetic: Acts as a skin-lightening agent by inhibiting melanin synthesis. It is often combined with tretinoin in prescription-strength topical treatments for depigmentation, such as for solar lentigines. It is also used as an antioxidant in some cosmetics.Chemical: Functions as a polymerization inhibitor for vinyl monomers like acrylonitrile and acrylic acid, preventing premature polymerization during storage and production. It also serves as an antioxidant, a UV inhibitor, and a stabilizer in other products like polymers and resins. Safety and handling Irritation: Mequinol is generally considered less irritating than hydroquinone.Storage: Store in a cool, dry, and dark place, in an airtight container to protect it from light and moisture.Application (topical): If using a topical product containing mequinol, follow the prescriber’s instructions carefully, such as applying a thin layer only to the affected area and avoiding contact with surrounding skin. Do not apply to sunburned, broken, or irritated skin.