Certificate of Analysis

Sr.No.	Test	Specification	Result
1	Description	Off white to light yellow powder	A light yellow powder.
2	Solubility	soluble in methanol	Complies
3	Identification 3.1 a)By IR           b)	IR Spectrum of the sample should match with that of standard spectrum.   The Retention time of major peak of sample should correspond to that of standard by HPLC	Complies     Complies
	3.2 Test for Sodium	Shall respond to test for sodium	Complies
4	Water Content by KF (%w/w)	Not more than 2.0	1.1
5	Heavy Metals (ppm)	Not more than 2.0	Less than 20
6	Related substances by HPLC(%) 6.1 Any individual impurity 6.2 Total Impurities	Not more than 0.5 Not more than 1.5	0.19 0.58
7	Assay by HPLC (%w/w) (on anhydrous basis)	98.8 to 102.0	100.0
8	Residual solvents/OVi by GC-HS (ppm) a.       Methanol b.       Acetone c.        Acetonitrile d.       Dichloromethane e.        N- heptane f.        Ethanol g.        Toluene h.       tetrahydrofuran	Not more  than 3000 Not more  than 5000 Not more  than 410 Not more  than 600 Not more  than 5000 Not more  than 5000 Not more  than 890 Not more  than 720	7 Not detected Not detected Not detected 1488 Not detected 588 142
9	Acetic acid content by GC (ppm)	Not more than 5000	1416