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[email protected] Fax: 1-631-614-7828 45-16 Ramsey Road, Shirley, NY 11967, USA https://nucleotech.bocsci.com Name Definition Chemical entity A physical entity of interest in chemistry, including molecular entities, parts thereof, and chemical substances Molecular entity Any constitutionally or isotopically distinct atom, molecule, ion, ion pair, radical, radical ion, complex, conformer, etc.; identifiable as a separately distinguishable entity Main group molecular entity A molecular entity contains one or more atoms from groups 1, 2, 13, 14, 15, 16, 17, and 18 of the periodic table P-block molecular entity A main group molecular entity contains one or more atoms of a p-block element Carbon group molecular entity A p-block molecular entity Organ molecular entity Any molecular entity that contains carbon Heteroorganic entity An organic molecular entity in which carbon atoms or organic groups are bonded directly to one or more heteroatoms Organochalcogen compound A compound containing at least one carbon-chalcogen bond Chalcogen molecular entity Any p-block molecular entity containing a chalcogen Oxygen molecular entity A chalcogen molecular entity Organooxygen compound A compound contains at least one carbon-oxygen bond Carbohydrate and carbohydrate derivative Any organooxygen compounds in the form of polyhydroxy-aldehyde or -ketone and/or compound derivatives; carbohydrates contain only carbon, hydrogen, and oxygen and usually have an empirical formula Cm(H2O)n; carbohydrate derivatives may include other elements by substitution or condensation Carbohydrate derivative Any organooxygen compound derived from carbohydrate by replacement of one or more hydroxy groups by an amino group, a thiol group, or similar heteroatomic groups Glycosyl compound A carbohydrate derivative that arises formally from the elimination of water from a glycosidic hydroxy group and an H atom bound to an oxygen, carbon, nitrogen, or sulfur atom of a separate entity C-glycosyl compound A glycosyl compound that arises formally from the elimination of water from a glycosidic hydroxy group and an H atom bound to a carbon atom, thus creating a C-C bond C-nucleoside A C-glycosyl compound C-glycosyl pyrimidine A C-nucleoside PseudoUridine A C-glycosyl pyrimidine that consists of uracil having a β-D-ribofuranosyl residue attached at 5’-position; the C-glycosyl isomer of the nucleoside uridine methylpseudoUridine A member of the class of pseudoUridines that is pseudoUridine substituted by a methyl group at an unspecified position Graph View chemical entity molecular entity main group molecular entity carbon group molecular entity organic molecular entityp-block molecular entity heteroorganic entitychalcogen molecular entity organooxygen compound oxygen molecular entity carbohydrates and carbohydrate derivatives carbohydrate derivative glycosyl compound C-glycosyl compound C-nucleoside C-glycosyl pyrimidine pseudoUridines methylpseudoUridine pseudoUridine organochalcogen compound