{
    "5": {
        "abbrev": "\u221e",
        "formula": "C12O4N5H17S1",
        "lc_elution_comment": null,
        "lc_elution_time": null,
        "mass_avg": 327.3633,
        "mass_monoiso": 327.1001,
        "mass_prot": 328.1079,
        "name": "2-methylthio-N6-methyladenosine",
        "original_base": "A",
        "product_ions": "196",
        "short_name": "ms2m6A",
        "smile": "CNc3nc(SC)nc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O"
    },
    "10": {
        "abbrev": "`",
        "formula": "C15O5N5H21",
        "lc_elution_comment": "after m6A (Kellner 2014)",
        "lc_elution_time": "2,59 (Kellner 2014)",
        "mass_avg": 351.3632,
        "mass_monoiso": 351.1543,
        "mass_prot": 352.1621,
        "name": "N6-(cis-hydroxyisopentenyl)adenosine",
        "original_base": "A",
        "product_ions": "220",
        "short_name": "io6A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN=C1N(CC=C(C)/CO)"
    },
    "16": {
        "abbrev": "E",
        "formula": "C16O8N6H22",
        "lc_elution_comment": "between A and m6A (Kellner 2014)",
        "lc_elution_time": "1,93 (Kellner 2014)",
        "mass_avg": 426.3868,
        "mass_monoiso": 426.1499,
        "mass_prot": 427.1577,
        "name": "N6-methyl-N6-threonylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": "295",
        "short_name": "m6t6A",
        "smile": "O=C(O)C(NC(=O)N(C)c3ncnc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O)C(C)O"
    },
    "19": {
        "abbrev": "\u221a",
        "formula": "C16O8N6H22",
        "lc_elution_comment": "between A and m6A (Kellner 2014)",
        "lc_elution_time": "1,93 (Kellner 2014)",
        "mass_avg": 426.3868,
        "mass_monoiso": 426.1499,
        "mass_prot": 427.1577,
        "name": "N6-hydroxynorvalylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": "295",
        "short_name": "hn6A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN=C1N(C(=O)NC(C(O)CC)C(=O)O)"
    },
    "20": {
        "abbrev": "^",
        "formula": "C15O11N5H22P1",
        "lc_elution_comment": null,
        "lc_elution_time": null,
        "mass_avg": 479.3408,
        "mass_monoiso": 479.1053,
        "mass_prot": null,
        "name": "2\u2032-O-ribosyladenosine (phosphate)",
        "original_base": "A",
        "product_ions": null,
        "short_name": "Ar(p)",
        "smile": "Nc4ncnc3c4ncn3[C@@H]2O[C@H](CO)C(O)[C@@H]2O[C@@H]1O[C@H](COP(=O)(O)O)[C@H](O)C1O"
    },
    "26": {
        "abbrev": "O",
        "formula": "C11O5N4H14",
        "lc_elution_comment": "between G and A (Kellner 2014)",
        "lc_elution_time": "1,24 (Kellner 2014)",
        "mass_avg": 282.2565,
        "mass_monoiso": 282.0964,
        "mass_prot": 283.1042,
        "name": "1-methylinosine",
        "original_base": "A",
        "product_ions": "151",
        "short_name": "m1I",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN(C)C1=O"
    },
    "32": {
        "abbrev": "\u0153",
        "formula": "C12O4N5H17",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 295.2989,
        "mass_monoiso": 295.1281,
        "mass_prot": 296.1359,
        "name": "1,2\u2032-O-dimethyladenosine",
        "original_base": "A",
        "product_ions": "150",
        "short_name": "m1Am",
        "smile": "C3(OC(CO)C(O)C(O(C))3)N2C=NC1=C2N=CN(C)C1=N"
    },
    "33": {
        "abbrev": "\u03be",
        "formula": "C12O5N4H16",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 296.2835,
        "mass_monoiso": 296.1121,
        "mass_prot": 297.1199,
        "name": "1,2\u2032-O-dimethylinosine",
        "original_base": "A",
        "product_ions": "151",
        "short_name": "m1Im",
        "smile": "C3(OC(CO)C(O)C(O(C))3)N2C=NC1=C2N=CN(C)C1=O"
    },
    "37": {
        "abbrev": "/",
        "formula": "C11O4N5H15",
        "lc_elution_comment": "between A and m6A (Kellner 2014, Kellner 2014)",
        "lc_elution_time": "1,65 (Kellner 2014); 1,91 (Kellner 2014)",
        "mass_avg": 281.2719,
        "mass_monoiso": 281.1124,
        "mass_prot": 282.1202,
        "name": "2-methyladenosine",
        "original_base": "A",
        "product_ions": "150",
        "short_name": "m2A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=C(C)N=C1N"
    },
    "41": {
        "abbrev": "\u03b6",
        "formula": "C12O4N5H17",
        "lc_elution_comment": "after m6A (Kellner 2014, Kellner 2014)",
        "lc_elution_time": "1,86 (Kellner 2014); 2,57 (Kellner 2014)",
        "mass_avg": 295.2989,
        "mass_monoiso": 295.1281,
        "mass_prot": 296.1359,
        "name": "N6,N6-dimethyladenosine",
        "original_base": "A",
        "product_ions": "164",
        "short_name": "m6,6A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN=C1N(C)(C)"
    },
    "51": {
        "abbrev": "*",
        "formula": "C16O4N5H23S1",
        "lc_elution_comment": "after m6A (Kellner 2014)",
        "lc_elution_time": "3,54 (Kellner 2014)",
        "mass_avg": 381.4553,
        "mass_monoiso": 381.1471,
        "mass_prot": 382.1549,
        "name": "2-methylthio-N6-isopentenyladenosine",
        "original_base": "A",
        "product_ions": "250",
        "short_name": "ms2i6A",
        "smile": "C/C(C)=C\\CNc3nc(SC)nc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O"
    },
    "55": {
        "abbrev": "[",
        "formula": "C16O8N6H22S1",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 458.4512,
        "mass_monoiso": 458.122,
        "mass_prot": 459.1298,
        "name": "2-methylthio-N6-threonylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": "327",
        "short_name": "ms2t6A",
        "smile": "O=C(O)C(NC(=O)Nc3nc(SC)nc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O)C(C)O"
    },
    "56": {
        "abbrev": "+",
        "formula": "C15O4N5H21",
        "lc_elution_comment": "after m6A (Kellner 2014)",
        "lc_elution_time": "3,24 (Kellner 2014)",
        "mass_avg": 335.3639,
        "mass_monoiso": 335.1594,
        "mass_prot": 336.1672,
        "name": "N6-isopentenyladenosine",
        "original_base": "A",
        "product_ions": "204/136/148",
        "short_name": "i6A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN=C1N(CC=C(C)C)"
    },
    "72": {
        "abbrev": "H",
        "formula": "-",
        "lc_elution_comment": null,
        "lc_elution_time": null,
        "mass_avg": 0.0,
        "mass_monoiso": 0.0,
        "mass_prot": null,
        "name": "unknown modified adenosine",
        "original_base": "A",
        "product_ions": null,
        "short_name": "xA",
        "smile": "-"
    },
    "79": {
        "abbrev": "\u2248",
        "formula": "C17O8N6H24S1",
        "lc_elution_comment": null,
        "lc_elution_time": null,
        "mass_avg": 472.4782,
        "mass_monoiso": 472.1376,
        "mass_prot": 473.1454,
        "name": "2-methylthio-N6-hydroxynorvalylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": "341",
        "short_name": "ms2hn6A",
        "smile": "O=C(O)C(NC(=O)Nc3nc(SC)nc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O)C(O)CC"
    },
    "82": {
        "abbrev": "\u03c7",
        "formula": "C12O4N5H17",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 295.2989,
        "mass_monoiso": 295.1281,
        "mass_prot": 296.1359,
        "name": "N6,2\u2032-O-dimethyladenosine",
        "original_base": "A",
        "product_ions": "150",
        "short_name": "m6Am",
        "smile": "C3(OC(CO)C(O)C(O(C))3)N2C=NC1=C2N=CN=C1N(C)"
    },
    "83": {
        "abbrev": "\"",
        "formula": "C11O4N5H15",
        "lc_elution_comment": "between U and G (Kellner 2014, Kellner 2014)",
        "lc_elution_time": "0,64 (Kellner 2014); 0,72 (Kellner 2014)",
        "mass_avg": 281.2719,
        "mass_monoiso": 281.1124,
        "mass_prot": 282.1202,
        "name": "1-methyladenosine",
        "original_base": "A",
        "product_ions": "150",
        "short_name": "m1A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN(C)C1=N"
    },
    "96": {
        "abbrev": "=",
        "formula": "C11O4N5H15",
        "lc_elution_comment": "after A (Kellner 2014, Kellner 2014)",
        "lc_elution_time": "1,66 (Kellner 2014); 1,97 (Kellner 2014)",
        "mass_avg": 281.2719,
        "mass_monoiso": 281.1124,
        "mass_prot": 282.1202,
        "name": "N6-methyladenosine",
        "original_base": "A",
        "product_ions": "150",
        "short_name": "m6A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN=C1N(C)"
    },
    "109": {
        "abbrev": "A",
        "formula": "C10O4N5H13",
        "lc_elution_comment": "",
        "lc_elution_time": "1.43",
        "mass_avg": 267.2449,
        "mass_monoiso": 267.0968,
        "mass_prot": 268.1046,
        "name": "adenosine",
        "original_base": "A",
        "product_ions": "136",
        "short_name": "A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN=C1N"
    },
    "113": {
        "abbrev": "I",
        "formula": "C10O5N4H12",
        "lc_elution_comment": "between U and G (Kellner 2014, Kellner 2014)",
        "lc_elution_time": "0,95 (Kellner 2014, Kellner 2014)",
        "mass_avg": 268.2295,
        "mass_monoiso": 268.0808,
        "mass_prot": 269.0886,
        "name": "inosine",
        "original_base": "A",
        "product_ions": "137",
        "short_name": "I",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CNC1=O"
    },
    "114": {
        "abbrev": "\u2261",
        "formula": "C13O7N6H16",
        "lc_elution_comment": null,
        "lc_elution_time": null,
        "mass_avg": 368.3066,
        "mass_monoiso": 368.108,
        "mass_prot": 369.1158,
        "name": "N6-glycinylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": "237",
        "short_name": "g6A",
        "smile": "O=C(O)CNC(=O)Nc3ncnc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O"
    },
    "124": {
        "abbrev": "\u03b7",
        "formula": "C13O4N5H19",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 309.3259,
        "mass_monoiso": 309.1437,
        "mass_prot": 310.1515,
        "name": "N6,N6,2\u2032-O-trimethyladenosine",
        "original_base": "A",
        "product_ions": "164",
        "short_name": "m6,6Am",
        "smile": "C3(OC(CO)C(O)C(O(C))3)N2C=NC1=C2N=CN=C1N(C)(C)"
    },
    "125": {
        "abbrev": "\u21d3",
        "formula": "C12O5N5H15",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 309.2822,
        "mass_monoiso": 309.1073,
        "mass_prot": 310.1151,
        "name": "N6-acetyladenosine",
        "original_base": "A",
        "product_ions": "178",
        "short_name": "ac6A",
        "smile": "C3(OC(CO)C(O)C(O)3)N2C=NC1=C2N=CN=C1N(C(=O)C)"
    },
    "126": {
        "abbrev": "\u2260",
        "formula": "C16O5N5H23S1",
        "lc_elution_comment": "after m6A (Kellner 2014)",
        "lc_elution_time": "3,19 (Kellner 2014)",
        "mass_avg": 397.4546,
        "mass_monoiso": 397.142,
        "mass_prot": 398.1498,
        "name": "2-methylthio-N6-(cis-hydroxyisopentenyl) adenosine",
        "original_base": "A",
        "product_ions": "266",
        "short_name": "ms2io6A",
        "smile": "C/C(CO)=C\\CNc3nc(SC)nc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O"
    },
    "127": {
        "abbrev": ":",
        "formula": "C11O4N5H15",
        "lc_elution_comment": "between A and m6A (Kellner 2014, Kellner 2014)",
        "lc_elution_time": "1,59 (Kellner 2014); 1,83 (Kellner 2014)",
        "mass_avg": 281.2719,
        "mass_monoiso": 281.1124,
        "mass_prot": 282.1195,
        "name": "2\u2032-O-methyladenosine",
        "original_base": "A",
        "product_ions": "136",
        "short_name": "Am",
        "smile": "C3(OC(CO)C(O)C(O(C))3)N2C=NC1=C2N=CN=C1N"
    },
    "128": {
        "abbrev": "\u2264",
        "formula": "C11O5N4H14",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 282.2565,
        "mass_monoiso": 282.0964,
        "mass_prot": 283.1042,
        "name": "2\u2032-O-methylinosine",
        "original_base": "A",
        "product_ions": "137",
        "short_name": "Im",
        "smile": "C3(OC(CO)C(O)C(O(C))3)N2C=NC1=C2N=CNC1=O"
    },
    "130": {
        "abbrev": "6",
        "formula": "C15O8N6H20",
        "lc_elution_comment": "between A and m6A (Kellner 2014)",
        "lc_elution_time": "1,62 (Kellner 2014)",
        "mass_avg": 412.3598,
        "mass_monoiso": 412.1343,
        "mass_prot": 413.1421,
        "name": "N6-threonylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": "281",
        "short_name": "t6A",
        "smile": "CC(O)C(N)C(=O)NC(=O)Nc3ncnc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O"
    },
    "131": {
        "abbrev": "\u00e2",
        "formula": "C11O4N5H15",
        "lc_elution_comment": null,
        "lc_elution_time": null,
        "mass_avg": 281.2719,
        "mass_monoiso": 281.1124,
        "mass_prot": 282.1202,
        "name": "8-methyladenosine",
        "original_base": "A",
        "product_ions": "150",
        "short_name": "m8A",
        "smile": "CC1=NC2=C(N)N=CN=C2[N]1C3OC(CO)C(O)C3O"
    },
    "136": {
        "abbrev": "\u00b1",
        "formula": "C12H17N5O4",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 295.2983,
        "mass_monoiso": 295.1281,
        "mass_prot": 296.1358,
        "name": "2,8-dimethyladenosine",
        "original_base": "A",
        "product_ions": "164",
        "short_name": "m2,8A",
        "smile": "CC1=NC(=C2N=C(C)[N](C3OC(CO)C(O)C3O)C2=N1)N"
    },
    "175": {
        "abbrev": "e",
        "formula": "C15O7N6H18",
        "lc_elution_comment": "between G and A (Kellner 2014); between A and m6A (Kellner 2014);",
        "lc_elution_time": "1,28 (Kellner 2014); 1,47 (Kellner 2014); 1,83 (Kellner 2014)",
        "mass_avg": 394.3442,
        "mass_monoiso": 394.1237,
        "mass_prot": 395.1315,
        "name": "cyclic N6-threonylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": "263",
        "short_name": "ct6A",
        "smile": "C(O)(C4N/C(=N\\c1c3c(ncn1)n([C@H]2C([C@H]([C@H](O2)CO)O)O)cn3)OC4=O)C"
    },
    "176": {
        "abbrev": "\u03ea",
        "formula": "C11H15N5O5",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 297.2708,
        "mass_monoiso": 297.1073,
        "mass_prot": 298.1151,
        "name": "N6-hydroxymethyladenosine",
        "original_base": "A",
        "product_ions": "268/136",
        "short_name": "hm6A",
        "smile": "OCNc3ncnc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O"
    },
    "177": {
        "abbrev": "\u03e8",
        "formula": "C11H13N5O5",
        "lc_elution_comment": null,
        "lc_elution_time": null,
        "mass_avg": 295.2549,
        "mass_monoiso": 295.0917,
        "mass_prot": 296.0995,
        "name": "N6-formyladenosine",
        "original_base": "A",
        "product_ions": "164",
        "short_name": "f6A",
        "smile": "O=CNc3ncnc2c3ncn2[C@@H]1O[C@H](CO)[C@H](O)C1O"
    },
    "180": {
        "abbrev": "\u00ff",
        "formula": "C17H21N5O7S",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 439.4429,
        "mass_monoiso": 439.1162,
        "mass_prot": null,
        "name": "2-methylthio cyclic N6-threonylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": null,
        "short_name": "ms2ct6A",
        "smile": "CSC1=NC(C2C(=O)N[C@@H]([C@@H](C)O)C2=O)=C2N=CN([C@@H]3O[C@H](CO)C(O)C3O)C2=N1"
    },
    "181": {
        "abbrev": "\u00ab",
        "formula": "C15H20N6O9",
        "lc_elution_comment": "",
        "lc_elution_time": "",
        "mass_avg": 428.3541,
        "mass_monoiso": 428.1292,
        "mass_prot": null,
        "name": "hydroxy-N6-threonylcarbamoyladenosine",
        "original_base": "A",
        "product_ions": null,
        "short_name": "ht6A",
        "smile": "OCC(O)C(NC(=O)NC1=C2N=CN([C@@H]3O[C@H](CO)C(O)C3O)C2=NC=N1)C(O)=O"
    },
    "182": {
        "abbrev": "\u00a3",
        "formula": "C17H25N5O4S2",
        "lc_elution_comment": "after m6A",
        "lc_elution_time": "3.56",
        "mass_avg": 427.54,
        "mass_monoiso": 427.1347,
        "mass_prot": 428.0,
        "name": "2- methylthiomethylenethio-N6-isopentenyl-adenosine",
        "original_base": "A",
        "product_ions": "",
        "short_name": "msms2i6A",
        "smile": "CSCSC1=NC(NCC=C(C)C)=C2N=CN([C@@H]3O[C@H](CO)C(O)C3O)C2=N1"
    }
}