![](http://www.alamy.com/thumbs/6/1FA7AED0-3B50-4F24-B492-5054F7AD936B/W5157N.jpg)
Molecule model of 4-hydroxyphenylalanine, a common amino acid. Black is Carbon, Red is Oxygen, white is Hydrogen, Blue is Nirogen
Size: 3696px × 2448px
Photo credit: © Kim Christensen / Alamy / Afripics
License: Royalty Free
Model Released: No
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