Ключевые слова: atomic, atoms, carbon, chemical, chemistry, cmp, composition, compound, cytidin, cytidine, cytidylate, cytidylic, cytidylyl, drawing, flat, formula, hydrogen, icon, line, molecular, molecule, monophosphate, nitrogen, nucleoside, nucleotide, oxygen, phosphate, pyrimidine, ribofuranose, ribose, rna, skeletal, structure, triphosphate,