PRODUCT NAME:RIBOFLAVIN VITAMIN B2 

EXPIRY DATE: 5 years

CAS NO.:83-88-5 

TEST

SPECIFICATIONS

RESULTS

APPEARANCE

YELLOW OR ORANGE-YELLOW CRYSTALLINE POWDER.

YELLOW, CRYSTALLINE POWDER

IDENTIFICATION

ACCORDING TO BP2008

MEETS THE REQUIREMENTS

LOSS ON DRYING

≤1.5%

0.10%

SULPHATED ASH

≤0.1%

0.1%

SPECIFI OPTICAL

ROTATION

-115°TO -135°

-130°

LUMIFLAVIN

≤0.025%

<0.025%

ABSORBANCE

A373nm/A267nm=0.31 TO 0.33

0.32

A444nm/A267nm=0.36 TO 0.39

0.38

CONTENTS

(DRIED SUBSTANCE)

97.0% TO 103.0%

98.8%

CONCLUSION: THE ABOVE ANALYTICAL RESULTS CONFORM TO BP2008