1-methylinosine

1-methylinosine

formula | C_11H_14N_4O_5 name | 1-methylinosine IUPAC name | 9-[(2R, 3R, 4S, 5R)-3, 4-dihydroxy-5-(hydroxymethyl)-2-tetrahydrofuranyl]-1-methyl-6-purinone mass fractions | C (carbon) 46.8% | H (hydrogen) 5% | N (nitrogen) 19.9% | O (oxygen) 28.3%

Draw the Lewis structure of 1-methylinosine. Start by drawing the overall structure of the molecule, ignoring potential double and triple bonds: Count the total valence electrons of the carbon (n_C, val = 4), hydrogen (n_H, val = 1), nitrogen (n_N, val = 5), and oxygen (n_O, val = 6) atoms: 11 n_C, val + 14 n_H, val + 4 n_N, val + 5 n_O, val = 108 Calculate the number of electrons needed to completely fill the valence shells for carbon (n_C, full = 8), hydrogen (n_H, full = 2), nitrogen (n_N, full = 8), and oxygen (n_O, full = 8): 11 n_C, full + 14 n_H, full + 4 n_N, full + 5 n_O, full = 188 Subtracting these two numbers shows that 188 - 108 = 80 bonding electrons are needed. Each bond has two electrons, so in addition to the 36 bonds already present in the diagram add 4 bonds. To minimize formal charge oxygen wants 2 bonds, nitrogen wants 3 bonds, and carbon wants 4 bonds. Identify the atoms that want additional bonds and the number of electrons remaining on each atom: Fill in the 4 bonds by pairing electrons between adjacent highlighted atoms: Answer: | |

molar mass | 282.26 g/mol

PubChem CID number | 65095 SMILES identifier | CN1C=NC2=C(C1=O)N=CN2C3C(C(C(O3)CO)O)O InChI identifier | InChI=1S/C11H14N4O5/c1-14-3-13-9-6(10(14)19)12-4-15(9)11-8(18)7(17)5(2-16)20-11/h3-5, 7-8, 11, 16-18H, 2H2, 1H3/t5-, 7-, 8-, 11-/m1/s1