Mandelic Acid

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mandelic acid

[man′del·ik ′as·əd]
(organic chemistry)
C6H5CHOHCOOH A white, crystalline compound, melting at 117-119°C, darkening upon exposure to light; used in organic synthesis.

Mandelic Acid

 

amygdalic acid, phenylglycolic acid; the simplest aliphatic-aromatic hydroxy acid.

Mandelic acid exists in two optically active forms, ( + ) and ( − ), as well as in the racemic (paramandelic) ( ± ) form. The first two types melt at 133.3°C; the racemic form

melts at 120.5°C. Natural ( − )-mandelic acid occurs in the bitter almond as the glycoside amygdalin, from which it can be extracted by hydrolysis; ( + )-mandelic acid is present (in a bound form) in the fruits and flowers of the common elder; and (±)-mandelic acid is obtained from benzaldehyde:

References in periodicals archive ?
Kojic, L-ascorbic, azelaic and mandelic acids all work at a deeper skin level to halt melanin production and impart a brightening effect.
Stila | CC Colour Correcting Cream, PS30 (www.stila.co.uk) MASKING TAKE WHILE most face masks rejuvenate by chemically exfoliating the skin, Environ Intensive Revival Masque uses a blend of Asiatic, lactic and mandelic acids to lower the ph balance of skin instead, promoting renewal from the inside.
Glycolic and mandelic acids help improve the appearance of large pores, discoloration and post-acne scarring for a more refined, even complexion.