This section is from the "A Handbook of Useful Drugs" book, by State Medical Examining and Licensing Boards.
A volatile oil containing about 75 per cent, of cinnamic
aldehyd and occurring as a yellowish liquid having the
characteristic odor of cinnamon and a sweetish spicy and
burning taste. It is freely soluble in alcohol but only very
slightly soluble in water.
Dosage: 0.05 c.c. or 1 minim.