Florfenicol

ITEMS

STANDARDS

Appearance

White or off-white powder or crystalline powder, odorless

Solubility

Very soluble in N,N-Dimethylformamide, Soluble in methanol, Sparingly soluble in glacial acetic acid, Very slightly soluble  in chloroform , Practically insoluble in water

Melting Point

152.0℃~156.0℃

Optical Rotation

-16.0°~-19.0°

identification

The retention time of the major peak of the Sample solution should correspond to that of the Standard solution, as obtained in the Assay

The absorption maxima in the spectrum obtained with the Sample should correspond in position and relative size to those in the spectrum obtained with the Standard

pH

4.5~6.5

Chloride

≤0.02%

Fluoride

≥4.8%

Related Substances

Individual impurities

≤0.50%

Total impurities

≤2.00%

Water(KF)

≤0.50%

Residue on ignition

≤0.1%

Heavy Metals

≤20ppm

Assay

≥98.0%(On the anhydrous basis)