from MERCK INDEX:
Title: Piperonal.
CAS Registry number: [120-57-0]
CAS name(s): 1,3-Benzodioxole-5-carboxaldehyde Additional name(s): 3,4-(methylenedioxy)benzaldehyde; heliotropin ; piperonyl al dehyde; dioxymethyleneprotocatechuic aldehyde
Molecular formula: C 8 H 6 O 3
Molecular weight: 150.13.
Percent Composition: C 64.00%, H 4.03%, O 31.97%.
Literature references: Prepn: Blair,
Patent US2916499
(1959 to Welsbach Corp.); Holum, J. Org. Chem. 26, 4814 (1961);
Feugeas, Bull. Soc. Chim. France 1964, 1892
(
https://www.thevespiary.org/rhodium/Rhodium/pdf/benzodioxole.deriviatives.pdf). Toxicity: Hagan et al., Toxicol. Appl. Pharmacol. 7, 18 (1965).
Properties: Colorless, lustrous crystals, mp 37degrees . Heliotrope odor. bp approximately263degrees ; bp 0.5 88degrees . Sol in 500 parts water; freely sol in alcohol, ether. Keep in cool place protected from light. LD 50 orally in rats: 2700 mg/kg (Hagan).
Boiling point: bp approximately 263degrees; bp 0.5 88degrees
Melting Point: 37degrees
USE: In perfumery, in cherry and vanilla flavors, in organic syntheses.
THERAP CAT: Has been used as pediculicide.
50g cost ~11€, it is heavily watched and regulated!
ORGY
for german speaking bees:
more information on chemistry and all (very good) at:
http://www.omikron-online.de/cyberchem/aroinfo/0568-aro.htm
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