sulfadoxine CAS NO.2447-57-6

ITEM

SPECIFICATIONS

RESULTS

IDENTIFICATION

A, THE INFRARED ABSORPTION SPECTRUM;

B, THE THIN-LAYER CHROMATOGRAPHY;

C, THE RESIDUE MELTS AT 80°C TO 82°C

 OR AT 90°C TO 92°C

D, THE REACTION OF PRIMARY AROMATIC AMINES.

CONFORMS

MELTING POINTS

ABOUT 198°C, WITH DECOMPOSITION

197.3~198.4°C

CHARACTERISTICS

WHITE OR YELLOWISH-WHITE CRYSTALLINE POWDER OR CRYSTALS

CONFORMS

APPEARANCE OF SOLUBITION

NOT MORE INTENSELY COLORED THAN Y5, 

BY5 OR GY5

ACIDITY

NMT 0.2ML

<0.2ML

RELATED SUBSTANCES

NMT 0.5%

<0.5%

HEAVY METALS

NMT 20PPM

<20PPM

LOSS ON DRYING

NMT 0.5%

0.10%

SULPHATED ASH

NMT 0.1%

0.05%

ASSAY (ON DRY BASIS )

99.0~101.0%

99.9%

CONCLUSION: CONFORMS TO THE STANDARD OF BP.