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Vitamin B2 (Riboflavin)
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Vitamin B2 (Riboflavin)

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INTRODUCTION
Parameters

Product

Riboflavin(Vitamin B2)

CAS No.

83-88-5

Molecular Formula

C17H20N4O6

Molecular Weight

376.37

Molecular Structure

Quality Standard

USP30/BP2007

Packing

25kgs drums with PE liner bags

Shelf Life

2 years

Storage

It must be stored in dry, cool and ventilation place. 

Specification

USP30

BP2007

Appearance

A yellow or orange yellow crystalline powder

A yellow or orange yellow crystalline powder

Identification

Conform

Conform

Specific rotation, °

-115 ~ -135

-115 ~ -135

Assay (on dried basis, %)

98.0 ~ 102.0

97.0 ~ 103.0

Loss on drying (%)

≤1.5

≤1.5

Residue on ignition (%)

≤0.3

≤0.1

Organic volatile impurities

Meets the requirements

/

Acidity or alkalinity(PH)

/

Meets the requirements

Lumiflavine

440 nm

Absorbance≤0.025

≤0.025

Absorbance

/

A373nm/A267nm=0.31~ 0.33

A444nm/A267nm=0.36~ 0.39

 

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