PRODUCT NAME: FOLIC ACID

BATCH NO.:0301020

MANU.DATE:JAN.20,2003

EXPIRY DATE:JAN.20,2007

BATCH NO.:500KGS

DATE OF CERT.:JAN.21,2003

CHARACTERS:

YELLOW OR ORANGE CRYSTALLINE POWDER,ODOURLESS OR ALMOSTODOURLESS,INSOLUBLE IN WATER ANDIN MOST ORGANIC SOLVENTS,DISSOLVES IN DILUTE ACIDS AND IN ALKALINE SOLUTION.

COMPLIES

IDENTIFICATION:
A:SPECIFIC ROTATION:
B:ULTRAVIOLET ABSORBTION:
C:THIN-LAYER CHROMATOGRAPHY:

SPECIFIC OPTICAL ROTATION IS ABOUT +20A256:A365 IS 2.8-3.0IT EXHIBITS THREE MAXIUMA AT 256,283 AND 363nm THE A AT 256nm IS ABOUT 590,AT 283nm IS ABOUT 575,AT 365NM IS ABOUT 206.THE PRINCIPAL SPOT IN THE CHROMATOGRAM OBTAINED WITH SOLUTION SAMPLE IS SIMILAR IN POSITION,FLUORE SCENCE AND SIZE TO THAT IN THE CHROMATOGRAM OBTAIN WITH SOLUTION FOLIC ACID R S

19.71COMPLIESCOMPLIES

CHROMATOGRAPHIC PURITY:

THE SUM OF THE AREA OF ALL PEAKS IS NOT GREATER THAN 2.0%

COMPLIES

FREE AMINES::

A2:A1≤1/6

0.0386

SULPHATED ASH:

≤0.2%

0.14%

ORGANIC VOLATILE IMPURITIES::

MUST COMPLIES

COMPLIES

LOSS ON DRYING:

5.0%-8.5%

7.26%

ASSAY(on dry basis):

96.0%-102%

99.6%