Physical Characteristic

Specification

Appearance

Clear, mobile, yellow or reddish-brown liquid.

Odor

Characteristic odour reminiscent of cinnamic aldehyde.

Identification Second identification A.

First identification B.

Complying with test

Thin-layer chromatography

Relative density @ 25°C

1.052 to 1.070.

Refractive index @ 20°C

1.600 to 1.614.

Optical rotation @ 20°C

- 1° to + 1°.

Acid value

Maximum 1.0

Solubility

Soluble, at 20°, in 6 volumes of ethanol (70%),

Assay by GC

trans-cinnamic aldehyde

cinnamyl acetate

eugenol

trans-2 methoxy cinnamaldehyde

coumarin

70.0 to 90.0%

1.0 to 6.0%%

Max 0.5%

3.0 to 15.0%

1.5 to 4.0%