Mandelic acid

• Hydroxyphenylacetic
• Phenylglykolsäure
• (RS )-mandelic acid
• (R )-mandelic acid
• (S )-mandelic acid
• DL -mandelic acid
• D-mandelic acid
• L- mandelic acid

• 90-64-2 [( RS)- mandelic acid ]
• 611-71-2 [(R )-mandelic acid ]
• 17199-29-0 [(S )-mandelic acid ]

Colorless crystals

Fixed

1.30 g · cm -3

• Soluble in water ( 158.7 g · l-1 at 20 ° C)
• Soluble in diethyl ether, ethanol and isopropanol

300 mg · kg -1 ( LD50, rat, i.m. )

Template: Infobox chemical / molecular formula search available

The mandelic acid ( α -hydroxyphenylacetic acid ) is an aromatic carboxylic acid, which forms two enantiomers due to the asymmetric α -carbon atom, the D-(- ) - and L-( )-mandelic acid [ Synonyms: (R) - and (S )-mandelic acid ]. It is available as a white crystalline solid.

The mandelic acid was discovered by heating an extract of bitter almonds with dilute hydrochloric acid. Industrially mandelic acid is obtained from benzaldehyde and hydrocyanic acid, in order to be further processed in various medicines.

Mandelic acid active at acidic pH in streptococci, staphylococci and coli bacteria as a bacteria or bacteriocidal.

At high styrene in the ambient air are reflected in the occupational medical diagnostics ( plastics production ) as high mandelic acid levels in the urine down.