Citrulline bụ L-enantiomer nke citrulline.Ọ nwere ọrụ dị ka EC 1.14.13.39 (nitric oxide synthase) inhibitor, onye na-ahụ maka nchebe, nutraceutical, micronutrient, metabolite mmadụ, Escherichia coli metabolite, Saccharomyces cerevisiae metabolite na òké metabolite.Ọ bụ ihe mgbakwunye nke D-citrulline.Ọ bụ tautomer nke L-citrulline zwitterion.