Structural Formula Vector Image
Title: Piperonal
CAS Registry Number: 120-57-0
CAS Name: 1,3-Benzodioxole-5-carboxaldehyde
Additional Names: 3,4-(methylenedioxy)benzaldehyde; heliotropin; piperonylaldehyde; dioxymethyleneprotocatechuic aldehyde
Molecular Formula: C8H6O3
Molecular Weight: 150.13
Percent Composition: C 64.00%, H 4.03%, O 31.97%
Literature References: Prepn: Blair, US 2916499 (1959 to Welsbach Corp.); Holum, J. Org. Chem. 26, 4814 (1961); Feugeas, Bull. Soc. Chim. Fr. 1964, 1892. Toxicity: Hagan et al., Toxicol. Appl. Pharmacol. 7, 18 (1965).
Properties: Colorless, lustrous crystals, mp 37°. Heliotrope odor. bp ~263°; bp0.5 88°. Sol in 500 parts water; freely sol in alcohol, ether. Keep in cool place protected from light. LD50 orally in rats: 2700 mg/kg (Hagan).
Melting point: mp 37°
Boiling point: bp ~263°; bp0.5 88°
Toxicity data: LD50 orally in rats: 2700 mg/kg (Hagan)
Use: In perfumery, in cherry and vanilla flavors, in organic syntheses.
Therap-Cat: Has been used as pediculicide.

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