Appearance:  off-white or yellowish crystalline powder
Moisture:  0.5%max.
Sulfated ash:  0.2% max.
(Z) isomer: 89% min.
(E) isomer: 10% max.

Impurities:

1)    7-ADCA impurity: 0.5% max.

2)    Total unknown impurity: 1.0% max,

3)    Total impurities: 1.5% max. 

Assay: 95%-105%