product name

Artemisinin 

Characteristics

Colorless needle crystal; a little bitter taste. The product is freely soluble in acetone, ethyl acetate,

chloroform

and glacid acetic acid; is soluble in Methanol, ethanol, dilute ethanol, ether, petroleum ether and

is almost

 insoluble in water. 

Melting Point

 150ºC~153ºC

Optical Rotation

+75°~+78° 

Clarity

 should be under Level 1

Identification 1

 Positive Reaction

Identification 2

 Positive Reaction

Identification 3

The retention time of the main peak of the sample solution for testing is supposed to be coincident with that of

reference sample. 

Identification 4

IR spectrum is in accordance with reference spectrum.

Related Substances 2

The main analogues(RRT0.83) ≤2.8%;

Other individual maximum impurity≤0.45%;

Total impurity≤4.5%

Loss on Drying

≤0.5% 

Residue on Ignition

≤0.1%

Assay

  99.0% (according to the drying quality meter)

Microbial Limit

The total number of aerobe≤500cfu/g;

Yeast & Mold≤50cfu/g;

E.Coli(Negative/1g)