The Nucleic Acid Modification Database

ID	Symbol	Common_Name	Chemical_Formula	Nucleoside_Mass
1	m¹A	1-methyladenosine	C₁₁H₁₅N₅O₄	281.27
2	m²A	2-methyladenosine	C₁₁H₁₅N₅O₄	281.27
3	m⁶A	N6-methyladenosine	C₁₁H₁₅N₅O₄	281.27
4	Am	2'-O-methyladenosine	C₁₁H₁₅N₅O₄	281.27
5	m⁸A	8-methyladenosine	C₁₁H₁₅N₅O₄	281.27
6	m⁶₂A	N6,N6-dimethyladenosine	C₁₂H₁₇N₅O₄	295.3
7	m⁶Am	N6,2'-O-dimethyladenosine	C₁₂H₁₇N₅O₄	295.3
8	m¹Am	1,2'-O-dimethyladenosine	C₁₂H₁₇N₅O₄	295.3
9	ac⁶A	N6-acetyladenosine	C₁₂H₁₅N₅O₅	309.28
10	m⁶₂Am	N6,N6,2'-O-trimethyladenosine	C₁₃H₁₉N₅O₄	309.33
11	ms²m⁶A	2-methylthio-N6-methyladenosine	C₁₂H₁₇N₅O₄S	327.36
12	i⁶A	N6-isopentenyladenosine	C₁₅H₂₁N₅O₄	335.36
13	io⁶A	N6-(cis-hydroxyisopentenyl)adenosine	C₁₅H₂₁N₅O₅	351.36
14	g⁶A	N6-glycinylcarbamoyladenosine	C₁₃H₁₆N₆O₇	368.31
15	ms²i⁶A	2-methylthio-N6-isopentenyladenosine	C₁₆H₂₃N₅O₄S	381.45
16	ms²io⁶A	2-methylthio-N6-(cis-hydroxyisopentenyl) adenosine	C₁₆H₂₃N₅O₅S	397.45
17	t⁶A	N6-threonylcarbamoyladenosine	C₁₅H₂₀N₆O₈	412.36
18	m⁶t⁶A	N6-methyl-N6-threonylcarbamoyladenosine	C₁₆H₂₂N₆O₈	426.39
19	hn⁶A	N6-hydroxynorvalylcarbamoyladenosine	C₁₆H₂₂N₆O₈	426.39
20	ms²t⁶A	2-methylthio-N6-threonyl carbamoyladenosine	C₁₆H₂₂N₆O₈S	458.45
21	ms²hn⁶A	2-methylthio-N6-hydroxynorvalyl carbamoyladenosine	C₁₇H₂₄N₆O₈S	472.47
22	Ar(p)	2'-O-ribosyladenosine (phosphate)	C₁₆H₂₄N₅O₁₁P	479.37