Description and references
From buds of Populus balsamifer L., Salicaceae: Goris, Canal, Bull. Soc. Chim. Fr. 3, 1982 (1936); from Lavanga scandens Buch.-Ham., Lavangalata: Baslas, Deshapande, J. Indian Chem. Soc. 27, 379 (1950). Synthesis of (E,E)-form: Klemm et al., Tetrahedron 20, 871 (1964).
Derivative
(E,E)-Form.
Nomenclature
CAS number: 40918-97-6
Properties
Needles from abs ethanol, mp 44°. uv max (95% ethanol):
216, 223 nm (log ε 3.45, 3.25). Practically
insol in water. 1 g dissolves in 22 ml cold, 3 ml boiling alcohol,
3 ml ether.