Shanghai Fine Chemicals

API • Vitamins • Food ingredients
Veterinary Injection & Premix

Florfenicol

TESTING ITEMS
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%
HE**Y METALS ≤20PPM
ASSAY CONTENT OF C12H14CL2FNO4S≥98.0%