A multipurpose reagent for racemate resolution and amide preparation

Stable, but light sensitive. Combustible. Incompatible with strong bases, strong oxidizing agents, strong reducing agents.

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Mandelic acid, also known as bitter amygdalic acid, is a white rhombic flake crystal. Melting point is 119 ℃. Soluble in hot water, ether and isopropyl alcohol, insoluble in ethanol. Overexposure may cause discoloration and decomposition. It can be prepared by benzaldehyde and dibromoacetophenone. Used in organic synthesis, it is a special reagent for determination of zirconium.

In the pharmaceutical industry can be used for cephaloxazole, vascular dilatation drug ring mandelate ester, eye drops hydroxybenzazole, pimorin and other intermediates, can also be used as preservatives.