Florfenicol

CHARACTER

WHITE or ALMOST WHITE CRYSTALLINE POWDER

MELTING POINT

152.0 ~ 156.0℃

SPECIFIC OPTICAL ROTATION

-16°~ -19°

IDENTIFICATION

THE RETENTION TIME OF THE MAJOR PEAK IN THE CHROMATOGRAM OF THE ASSAY PREPARATION CORRESPONDS TO THAT IN THE CHROMATOGRAM OF THE STANDARD PREPARATION, AS OBTAINED IN THE ASSAY.

UV ABSORPTION MAX. AT 266NM.

IR SPECTRA IS CONSISTENT WITH CRS.

CHECK

PH

4.5 ~ 6.5

APPEARANCE OF SOLUTION

NOT MORE THAN STANDARD OF YELLOW 4 SIZE

CHLORIDES

≤ 0.02%

FLUORIDES

≥4.8%

RELATED SUBSTANCES

INDIVIDUAL IMPORITY ≤0.5%

TOTAL IMPORITIES ≤ 2.0%

WATER

≤ 0.5%

RESIDUE ON IGNITION

≤ 0.1%

HEAVY METALS

≤ 20PPM

ASSAY

CONTENT OF C₁₂H₁₄CL₂FNO₄S ≥98.0%