Title: Mandelic Acid Isoamyl Ester

CAS Registry Number: 5421-04-5

CAS Name: a-Hydroxybenzeneacetic acid 3-methylbutyl ester

Additional Names: mandelic acid isopentyl ester; isoamyl mandelate

Trademarks: Atractyl; Spasmol; Vermiparin; Spasmostenyl

Molecular Formula: C13H18O3

Molecular Weight: 222.28

Percent Composition: C 70.24%, H 8.16%, O 21.59%

Literature References: Prepd by esterification of DL-mandelic acid with an excess of isoamyl alcohol in the presence of concd H2SO4: Rona et al., Biochem. Z. 181, 50 (1927). Improved procedure and spasmolytic activity: N. Brock et al., Arzneim.-Forsch. 2, 165 (1952).

Properties: Oily liquid. bp11 172° (Rona); bp12 155° (Brock). Practically insol in water. Miscible with fat solvents. Easily hydrolyzed by esterases.

Boiling point: bp11 172° (Rona); bp12 155° (Brock)

CAUTION: The pure, undiluted liquid is a skin irritant.

Therap-Cat-Vet: Has been used as an anthelmintic.