Piperonal Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R38:Reizt die Haut.
R52/53:Sch?dlich für Wasserorganismen, kann in Gew?ssern l?ngerfristig sch?dliche Wirkungen haben.
S-S?tze Betriebsanweisung:
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
white crystalline solid
Occurrence
Reported found in the essential oils of Robinia pseudo-acacia and Eryngium poterium; in the oils of Spirea
ulmaria and of leaves of Doryphora sassafras; also reported found in Tahitian and Bourbon vanilla, camphor wood oil, violet flowers
concrete and absolute, burley tobacco, rabbiteye blueberry, melon, pepper, cooked chicken, sherry and dill.
Verwenden
Piperonal is an impurity of Tadalafil (T004500). Tadalafil impurity A.
Definition
ChEBI: An arenecarbaldehyde that is 1,3-benzodioxole substituted by a formyl substituent at position 5. It has been isolated from Piper nigrum.
Allgemeine Beschreibung
Colorless lustrous crystals.
Air & Water Reaktionen
Slightly water soluble .
Reaktivit?t anzeigen
Piperonyl aldehyde is an aldehyde. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation. Piperonyl aldehyde is sensitive to light. Piperonyl aldehyde may react with oxidizing materials.
Brandgefahr
Flash point data for Piperonyl aldehyde are not available. Piperonyl aldehyde is probably combustible.
Sicherheitsprofil
Moderately toxic by
ingestion and intraperitoneal routes. Can
cause central nervous system depression. A
human skin irritant. Mutation data reported.
Combustible when exposed to heat or
flame; can react with oxidizing materials. See
also ALDEHYDES.
Stoffwechsel
In the animal body heliotropin undergoes the expected metabolic reaction involving oxidation to the corresponding acid (Williams, 1959).
l?uterung methode
Crystallise piperonal from aqueous 70% EtOH or EtOH/water. [Beilstein 19/4 V 225.]
Piperonal Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
