Product Name: Cefalexin
CAS No.: 15686-71-2
Cephalexin Hydrate is a semi-synthetic, cephalosporin antibiotic. it is a first generation cephalosporin. The compound is most effective against gram positive cocci and has moderate activity against some gram negative bacilli.
Description: White or almost white crystalline powder
Cephalexin (cefalexin) is a cephalosporin antibiotic used to treat bacterial infections of the upper respiratory tract, the middle ear, the bones, the skin, and the reproductive and urinary systems. Cephalexin (cefalexin) works by interfering with the bacteria's cell wall formation. This weakens the cell wall, causing it to rupture, and kills the bacteria.
As cephalexin (cefalexin) is only effective against certain types of bacterial infection your doctor may perform tests to identify the organisms causing the infection before beginning treatment.
Cephalexin (cefalexin) may also be used for other purposes not listed here.
Cephalexin (cefalexin) is available in capsule, tablet, and liquid forms.
White or almost white,crystalline powder
White crystalline powder
Sparingly soluble in water, practically insoluble in ethanol(96%)
IR spectrum should match with that of standard
4.0%~8.0%, determined on 0.300g
Specific Optical Rotation
+149°~+158° ( anhydrous substance )
95.0%~102.0% of C16H17N3O4S
( anhydrous substance)
≤1.0% (compared to the area of the 2nd peak)
Any Other Impurity
≤1.0% (compared to the area of the 1st peak)
≤0.2%, determined on 1.0g
Not more than 20 ppm
Not used in process
Tapped Density (g/ml)
Conclusion: This product complies as per above specifications.