Mequinol, MeHQ or 4-methoxyphenol,

is a phenol used in dermatology and organic chemistry. Mequinol is a synthetic derivate of hydroquinone and de-pigmenting agent. Mequinol is a skin lightening agent. In organic chemistry 4-methoxyphenol is used to inhibit the radical polymerization of monomers.

Specifications of Mequinol or MeHQ or 4-methoxyphenol

Appearance: White to Off White Powder or Crystals or Granule or Flakes
Purity by GC: 99.5% minimum.
Color (APHA) 10% in Acetone: 10 APHA maximum.
Melting Point: 54C to 56C
Water Content (Karl Fischer Titration): 0.3% maximum.
Solubility: Slightly soluble in water, soluble in alcohol.
Residue on Ignition: 0.01% maximum.
Hydroquinone by GC: 0.1% maximum.