核苷是糖胺，可以被認(rèn)為是不含磷酸基的核苷酸。核苷由一個(gè)核苷酸(也稱為氮基)和一個(gè)五碳糖(核糖或脫氧核糖)組成，而核苷酸由一個(gè)核苷酸、一個(gè)五碳糖和一個(gè)或多個(gè)磷酸基組成。在核苷中，堿基通過(guò)-糖苷鍵與核糖或脫氧核糖結(jié)合。核苷酸是有機(jī)分子，是構(gòu)成核酸聚合物的單體單位，脫氧核糖核酸(DNA)和核糖核酸(RNA)，兩者都是地球上所有生命形式中必不可少的生物分子。核苷酸是核酸的基本組成部分;它們由三個(gè)亞基分子組成:一個(gè)氮基、一個(gè)五碳糖(核糖或脫氧核糖)和至少一個(gè)磷酸基。核苷是含氮的堿和5碳的糖。因此，一個(gè)核苷加上一個(gè)磷酸基產(chǎn)生一個(gè)核苷酸。
2'-Deoxyguanosine-5'-monophosphoric acid disodium salt
Disodium uridine-5-monophosphate
1-((2R,3R,4R,5R)-3,4-Dihydroxy-5-(hydroxymethyl)-3-methyltetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione
Sodium ((2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl diphosphate
Sodium ((2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl dihydrogentriphosphate dihydrate
Cytidine 5'-(trihydrogen diphosphate),disodium salt
Sodium ((2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl dihydrogentriphosphate
((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate hydrate
Sodium ((2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl diphosphate
1-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one
4-Amino-1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one hydrochloride
1-((2R,4S,5R)-4-Hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde
(2R,3R,4S,5R)-2-(6-((3-Hydroxybenzyl)amino)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol
tert-Butyl (tert-butoxycarbonyl)(9-((3aR,4R,6R,6aR)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-9H-purin-6-yl)carbamate
(2R,3R,4S,5R)-2-(6-Amino-2-iodo-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol
1-((2R,4S,5S)-4-Azido-5-(hydroxymethyl)tetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione
Sodium ((2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-3-hydroxytetrahydrofuran-2-yl)methyl phosphate
2'-Deoxyguanosine-5'-triphosphate trisodium salt
(2R,3R,4S,5R)-2-(6-Amino-9H-purin-9-yl)-5-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol
N-(1-((2R,4S,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxytetrahydrofuran-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)benzamide
3'-O-tert-Butyldimethylsilyl-5'-O-DMT-N2-isobutyrylguanosine 2'-CE phosphoramidite
N-(9-((2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-oxo-6,9-dihydro-1H-purin-2-yl)-2-phenylacetamide
5-Bromo-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione
5-Methyl-2'-deoxycytidine 5'-monophosphate
((2R,3S,5R)-3-Acetoxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl acetate
(2R,3R,4S,5R)-2-(6-Amino-2-hydrazinyl-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol
1,3,5-Tri-O-benzoyl-a-D-ribofuranose
Udp-alpha-d-n-acetylgalactosamine,disodiumsalt
