Monensin Sodium

1.Description

White or Off-white crystalline Powder

2.Identification

A.The retention times of the main peak for monensin A and a minor peak for monensin B in the chromatogram of the assay preparation should correspond to those in the standard preparation.

B.The ethanol solution of the sample should give the color of cyan after adding the test solution of paradime thylaminobenzal-dehyde and heating
C.It should give the characteristic reaction of sodium

3.Loss on

drying

Loss

on

drying

not

more

than

2.0%

4.PH value

6.5—9.5

5.Residue ignition

on

Residue on ignition should be among 8.0%-12.0%

6.Heavy Metals

Not more than 20ppm

7.Arsenic

Not more than 4ppm

8.Content

1)It should contain monensin (C₃₆H₆₂O₁₁₎ not less than 900 ㎎/g（Calculated on dried basis）
2)Monensin  A activity should not be less than 90% in the monensin 3)Monensin A plus monensin B activity in the monensin should not be less than
95%

Conclusion: Tested according to the in-house standard 【USP36】,It complies with the requirements.