citrulline. alpha amino acid. structural chemical formula and molecule 3d model. c6h13n3o3. atoms with color coding.

abstract acid amino atom atomic bio biochemistry bond c6h13n3o3 chain chem chemical chemistry citrulline clipart compound contour design dietary education element equation flat formula graphic icon illustration infographic lab line medicine model molecular molecule nutrient particle science shape sign silhouette simple skeletal sketch structure substance substitute supplement symbol vector