08. 12. 2019.

Vitamin B2 (riboflavin)

 

 

Product Name

 

 

 

VITAMIN B2

Analysis Contents Standard
Appearance Orange yellow crystalline powder
Identification Positive
Acidity or alkalinity

Check the color of the test solution after adding the respective solutions

Lumiflavin  Absorbance of the filtrate at 440 nm does not exceed 0,025 (USP); not more intense than BY6 (EP/BP)
Absorbance

0,31 – 0,33   A373 nm/A267 nm

 0,36 – 0,39   A444 nm/A267 nm

Particle size  100% passes through 60 mesh sieve
Specific Rotation  Between -115° and -135° (EP/BP/USP)
Loss on Drying ≤ 1,5 %
 

Heavy Metals

Arsenic

Lead

Mercury

Cadmium

 

 

< 10 ppm

NMT 1 ppm

NMT 1 ppm

NMT 0,1 ppm

NMT 1 ppm

Residue of Ignition

≤ 0,3 % (USP)

   ≤ 0,1 % (EP/BP)

Residual Solvents

Method IV <467>

(USP)

Assay (on dried basis)

98,0 %  – 102,0 % (USP)

97,0 % – 103,0 % (EP/BP)

 

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