![](http://www.alamy.com/thumbs/6/166939ED-73FB-4FA1-9C8F-644A266DF089/E7YNNC.jpg)
Vitamin B3 (niacin) molecule. Stylized 2D rendering and conventional skeletal formula.
Size: 14587px × 4471px
Photo credit: © molekuul.be / Alamy / Afripics
License: Royalty Free
Model Released: No
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