Possible Reactions
| # | Reaction | Mass Difference (Da) | Description |
|---|---|---|---|
| 1 | -H2 | -2.015650 | dehydrogenation |
| 2 | +H2 | 2.015650 | hydrogenation |
| 3 | -CH2 | -14.015650 | demethylation |
| 4 | +CH2 | 14.015650 | methylation |
| 5 | -NH | -15.010899 | loss of NH |
| 6 | +NH | 15.010899 | addition of NH |
| 7 | -O | -15.994915 | loss of oxygen |
| 8 | +O | 15.994915 | Oxidation |
| 9 | -NH3 | -17.026549 | loss of ammonia |
| 10 | +NH3 | 17.026549 | addition of ammonia |
| 11 | -H2O | -18.010565 | loss of water |
| 12 | +H2O | 18.010565 | addition of water |
| 13 | -CO | -27.994915 | loss of CO |
| 14 | +CO | 27.994915 | addition of CO |
| 15 | -C2H4 | -28.031300 | loss of C2H4 |
| 16 | +C2H4 | 28.031300 | addition of C2H4 |
| 17 | -C2H2O | -42.010565 | Deacetylation |
| 18 | +C2H2O | 42.010565 | Acetylation |
| 19 | -CO2 | -43.989830 | loss of CO2 |
| 20 | +CO2 | 43.989830 | addition of CO2 |
| 21 | SO3H->SH | -47.984745 | Sulfonic acid to Thiol |
| 22 | SH->SO3H | 47.984745 | Thiol to Sulfonic acid |
| 23 | -C2H3NO | -57.021464 | loss of glycine |
| 24 | +C2H3NO | 57.021464 | glycine conjugation |
| 25 | -SO3 | -79.956817 | loss of sulfate |
| 26 | +SO3 | 79.956817 | sulfate conjugation |
| 27 | -HPO3 | -79.966333 | loss of Phosphate |
| 28 | +HPO3 | 79.966333 | addition of Phosphate |
| 29 | -C4H3N3 | -93.032697 | loss of Cytosine |
| 30 | +C4H3N3 | 93.032697 | addition of Cytosine |
| 31 | -C4H2N2O | -94.016713 | loss of Uracil |
| 32 | +C4H2N2O | 94.016713 | addition of Uracil |
| 33 | -C3H5NOS | -103.009186 | loss of cysteine |
| 34 | +C3H5NOS | 103.009186 | cysteine conjugation |
| 35 | -C2H5NO2S | -107.004101 | loss of taurine |
| 36 | +C2H5NO2S | 107.004101 | taurine conjugation |
| 37 | -C5H4N2O | -108.032363 | loss of Thymine |
| 38 | +C5H4N2O | 108.032363 | addition of Thymine |
| 39 | - (C5H5N5 - H2O) | -117.043930 | loss of Adenine |
| 40 | + (C5H5N5 - H2O) | 117.043930 | addition of Adenine |
| 41 | -C3H5NO2S | -119.004101 | loss of S-cysteine |
| 42 | +C3H5NO2S | 119.004101 | S-cysteine conjugation |
| 43 | -C5H8O4 | -132.042260 | loss of D-ribose |
| 44 | +C5H8O4 | 132.042260 | addition of D-ribose |
| 45 | -C5H3N5 | -133.038845 | loss of Guanine |
| 46 | +C5H3N5 | 133.038845 | addition of Guanine |
| 47 | -C7H13NO2 | -143.094629 | loss of Carnitine |
| 48 | +C7H13NO2 | 143.094629 | addition of Carnitine |
| 49 | -C5H7NO3S | -161.014666 | loss of N-acetyl-S-cysteine |
| 50 | +C5H7NO3S | 161.014666 | addition of N-acetyl-S-cysteine |
| 51 | -C6H10O5 | -162.052825 | loss of Hexose |
| 52 | +C6H10O5 | 162.052825 | addition of Hexose |
| 53 | -C6H8O6 | -176.032090 | loss of glucuronic acid |
| 54 | +C6H8O6 | 176.032090 | addition of glucuronic acid |
| 55 | -C10H12N2O4 | -224.079708 | loss of Thymidine |
| 56 | +C10H12N2O4 | 224.079708 | addition of Thymidine |
| 57 | -C9H11N3O4 | -225.074957 | loss of Cytidine |
| 58 | +C9H11N3O4 | 225.074957 | addition of Cytidine |
| 59 | -C9H10N2O5 | -226.058973 | loss of Uridine |
| 60 | +C9H10N2O5 | 226.058973 | addition of Uridine |
| 61 | -C16H30O | -238.229665 | loss of Palmitic acid |
| 62 | +C16H30O | 238.229665 | addition of Palmitic acid |
| 63 | -C6H11O8P | -242.019158 | loss of Glucose-6-phosphate |
| 64 | +C6H11O8P | 242.019158 | addition of Glucose-6-phosphate |
| 65 | -C10H11N5O3 | -249.086190 | loss of Adenosine |
| 66 | +C10H11N5O3 | 249.086190 | addition of Adenosine |
| 67 | -C10H11N5O4 | -265.081105 | loss of Guanosine |
| 68 | +C10H11N5O4 | 265.081105 | addition of Guanosine |
| 69 | -C10H15N3O5S | -289.073244 | loss of Glutathione |
| 70 | +C10H15N3O5S | 289.073244 | addition of Glutathione |
| 71 | -C10H15N3O6S | -305.068159 | loss of S-Glutathione |
| 72 | +C10H15N3O6S | 305.068159 | addition of S-Glutathione |
| 73 | -C12H20O10 | -324.105650 | loss of di-hexose |
| 74 | +C12H20O10 | 324.105650 | addition of di-hexose |
| 75 | -C18H30O15 | -486.158475 | loss of tri-hexose |
| 76 | +C18H30O15 | 486.158475 | addition of tri-hexose |