FOLIC ACID

Lot No.

20081113

Report No.

     ------------

Quantity

350 KGS

Test date

DEC.12, 2008

DEC.10, 2008

  DEC.09, 2011

Test

Standards

Results

 yellowish or orange, crystalline powder. Practically insoluble in water and in most organic solvents. It dissolves in dilute acids and in alkaline solutions.

 yellowish crystalline powder. Practically insoluble in water and in most organic solvents. It dissolves in dilute acids and in alkaline solutions.

Identification

A: Specific optical rotation

+18 to +22 (anhydrous substance)

19.2

B:HPLC chromatograms

Complies

Complies

C:TLC Identification

Complies

Complies

Related substance

Impurity A not more than 0.5%

Less than 0.5%

Impurity D not more than 0.6%

Less than 0.6%

any other impurity not more than 0.5%

any other impurity less than 0.5%

Total of other impurity not more than 1.0%

Less than 1.0%

UV absorption ratio

A256/A365:2.80-3.0

2.91

Sulphated ash

Not more than 0.2%

0.15%

Organic volatile impurities

Conforms

Conforms

Water

5.0 %- 8.5 %

6.8%

Assay

96.0-102.0% (anhydrous basis)

98.0%

Conclusion :               Complies with USP28

Rechecker by

Wei Wang

Reported by

Min Kang

QC Manager

Shijie Chen