PRODUCT NAME:NIFUROXAZIDA

EXPIRY DATE: 4 years

CAS NO.:

ITEMS

SPECIFICATIONS

RESULTS

APPEARANCE

BRIGHT YELLOW,CRYSTALLINE POWDER

BRIGHT YELLOW CRYSTALLINE POWDER

SOLUBILITY

PRACTICALLY INSOLUBLE IN WATER,SLIGHTLY SOLUBLE IN ALCOHOL AND IN METHYLENE CHLORIDE.

CONFORM

LOSS ON DRYING

0.5% MAX

0.34%

HEAVY METAL(AS Pb)

0.002% MAX

CONFORM

SULPHATED ASH

0.1% MAX

0.03%

IDENTIFICATION BY IR

THE IR SPECTRUM MATCHES NIFUROXAZIDE STANDARD SPECTRUM.

CONFORM

IMPURITY A

0.05% MAX

0.02%

RELATED SUBSTANCE

RELATIVE RETENTION:WITH REFERENCE TO NIFUROXAZIDE (RETENTION TIME=ABOUT 8 MIN)

IMPURITY A=ABOUT 0.36 AND 0.39,

IMPURITY B=ABOUT1.2,

IMPURITY C= ABOUT2.6,

IMPURITY D= ABOUT3.4.

CONFORM

IMPURITY PEAK AREA:

IMPURITY B,C,D:FOR EACH IMPURITY,NOT MORE THAN 0.6 TIMES THE AREA OF THE PRINCIPAL PEAK

UV ABSORPTION

THE SPECIFIC ABSORPTION AT ABOUT 367nm IS BETWEEN 940~1000.

CONFORM

ASSAY(ON DRIED)

98.5~101.5%

99.4%