Researching Relationships

Riboflavin (Vitamin B2)

Lactoflavin, Vitamin B2

Molecular Formula / Molecular Weight C17H20N4O6 = 376.37
Physical State (20 deg.C) Solid
CAS RN 83-88-5
Unit Price
25 g 1200
50 g 2000
100 g 3500
Appearance White to Yellow to Orange powder to crystal
Specific rotation [a]20/D -128.0 to -142.0 deg (C=0.5, JP Method)
Absorbance(E1%1cm) min. 800(pH 7.0, 264.0 to 280.0 nm)
abs-ratio(a/b) 0.32 to 0.33(E374/E267)
abs-ratio(2a/2b) 0.36 to 0.38(E445/E267)

• Pharmaceutical Ingredients (for Research and Experimental Use) is provided as delivered and specified by the issuing Pharmacopoeia.
• The contents of the specifications are subject to change without advance notice.The specification values displayed here are the most up to
date values.There may be cases where the product labels display different specification; however, the product quality still meets the latest