Synonyms: Mequinol, 4-Hydroxyanisole, p-Hydroxyanisole, p-Methoxyphenol, Hydroquinone monomethyl ether, MeHQ, p-Guaiacol,

CAS Number: 150-76-5,

Molecular Weight: 124.14,

Chemical Formula: CH3OC6H4OH or C7H8O2,

EINECS EC Number: 205-769-8,

FEMA: ...

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.