| Malonamide | malonamide | C3H6N2O2 | C1s | kr-0cckk.os | LCH03 |
| Malonamide | malonamide | C3H6N2O2 | N1s | kr-0nnkk.os | LCH03 |
| Malonamide | malonamide | C3H6N2O2 | O1s | kr-0ookk.os | LCH03 |
| Manganese | manganese | Mn | Mn 2p,2s | aaa-mnll.os | SF |
| Manganese carbonyl | manganese carbonyl | C10Mn2O10 | C 1s | md-0cckk.os | RH89 |
| Manganese carbonyl | manganese carbonyl | C10Mn2O10 | Mn 2p | md-0mnl3.os | RH89 |
| Manganese carbonyl | manganese carbonyl | C10Mn2O10 | O 1s | md-0ookk.os | RH89 |
| Manganese carbonylbromide | manganese carbonylbromide | BrC5MnO5 | C 1s | mb-0cckk.os | RH89 |
| Manganese carbonylbromide | manganese carbonylbromide | BrC5MnO5 | Mn 2p | mb-0mnll.os | RH89 |
| Manganese carbonylbromide | manganese carbonylbromide | BrC5MnO5 | O 1s | mb-0ookk.os | RH89 |
| Manganese carbonylhydride | manganese carbonylhydride | C5HMnO5 | C 1s | mc-0cckk.os | RH89 |
| Manganese carbonylhydride | manganese carbonylhydride | C5HMnO5 | O 1s | mc-0ookk.os | RH89 |
| MDI bis ethyl urethane | mdi bis ethyl urethane | C19H22N2O4 | C 1s | je-0cckk.os | UHR95 |
| MDI bis ethyl urethane | mdi bis ethyl urethane | C19H22N2O4 | N 1s | je-0nnkk.os | UHR95 |
| 3-Me-selenophene | me-selenophene | C5H7Se | C 1s | sm-0cckk.os | HTB89 |
| meta nitroaniline | meta nitroaniline | C6H6N2O2 | C 1s | nk-0cckk.os | TUH96 |
| meta nitroaniline | meta nitroaniline | C6H6N2O2 | N 1s | nk-0nnkk.os | TUH96 |
| meta nitroaniline | meta nitroaniline | C6H6N2O2 | O 1s | nk-0ookk.os | TUH96 |
| Methane | methane | CH4 | C 1s | me-0cckk.os | KH08 |
| methane sulfonic acid | methane sulfonic acid | CH4O3S | C 1s | mv-0cckk.os | HH14 |
| methane sulfonic acid | methane sulfonic acid | CH4O3S | O 1s | mv-0ookk.os | HH14 |
| methane sulfonic acid | methane sulfonic acid | CH4O3S | S 2p, S 2s | mv-0ssll.os | HH14 |
| methanol | methanol | CH4O | C 1s | ml-0cckk.os | IH88 |
| methanol | methanol | CH4O | O 1s | ml-0ookk.os | IH88 |
| Methoxyalkilyd.tricobalt nonacarbonyl | methoxyalkilyd.tricobalt nonacarbonyl | C11Co3H3O10 | Co 2p | mf-0coll.os | HM&93 |
| Methoxyalkilyd.tricobalt nonacarbonyl | methoxyalkilyd.tricobalt nonacarbonyl | C11Co3H3O10 | O 1s | mf-0ookk.os | HM&93 |
| Methoxyalkyd.tricobalt nonacarbonyl | methoxyalkyd.tricobalt nonacarbonyl | C11Co3H3O10 | C 1s | mf-0cckk.os | HM&93 |
| Methy fluoride | methy fluoride | CFH3 | C 1s | my-0cckk.os | H92a |
| Methy fluoride | methy fluoride | CFH3 | F 1s | my-0ffkk.os | H92a |
| 4-methyl 2-pentanone | methyl 2-pentanone | C6H12O | C 1s | mk-0cckk.os | H20 |
| 4-methyl 2-pentanone | methyl 2-pentanone | C6H12O | O 1s | mk-0ookk.os | H20 |
| n-methyl aniline | methyl aniline | C7H9N | C 1s | uz-0cckk.os | UH96 |
| n-methyl aniline | methyl aniline | C7H9N | N 1s | uz-0nnkk.os | UH96 |
| methyl formate | methyl formate | C2H4O2 | C 1s | mr-0cckk.os | IH88 |
| methyl formate | methyl formate | C2H4O2 | O 1s | mr-0ookk.os | IH88 |
| Methyl isocyanide | methyl isocyanide | C2H3N | C 1s | mi-0cckk.os | HTM89 |
| Methyl isocyanide | methyl isocyanide | C2H3N | N 1s | mi-0nnkk.os | HTM89 |
| Methyl mercaptan | methyl mercaptan | CH4S | C 1s | mm-0cckk.os | DTH90 |
| Methyl mercaptan | methyl mercaptan | CH4S | S 2p,2s | mm-0ssll.os | DTH90 |
| Methyl methanesulfonate | methyl methanesulfonate | C2H6O3S | C1s | mw-0cckk.os | HH14 |
| Methyl methanesulfonate | methyl methanesulfonate | C2H6O3S | O1s | mw-0ookk.os | HH14 |
| Methyl methanesulfonate | methyl methanesulfonate | C2H6O3S | S2p | mw-0ssll.os | HH14 |
| Methyl Norbornene | methyl norbornene | C8H12 | C 1s | mn-0cckk.os | WH&90 |
| N-methyl-N-phenylurethane | methyl-n-phenylurethane | C10H13NO2 | C 1s | ig-0cckk.os | UH&95b |
| N-methyl-N-phenylurethane | methyl-n-phenylurethane | C10H13NO2 | N 1s | ig-0nnkk.os | UH&95b |
| N-methyl-N-phenylurethane | methyl-n-phenylurethane | C10H13NO2 | O 1s | ig-0ookk.os | UH&95b |
| Methyl-thio-isocyanide | methyl-thio-isocyanide | C2H3NS | C 1s | ti-0cckk.os | HTM89 |
| Methyl-thio-isocyanide | methyl-thio-isocyanide | C2H3NS | N 1s | ti-0nnkk.os | HTM89 |
| methylcyclopentadienylmanganese triCO | methylcyclopentadienylmanganese trico | C9H7MnO3 | C 1s | mg-0cckk.os | W92 |
| methylcyclopentadienylmanganese triCO | methylcyclopentadienylmanganese trico | C9H7MnO3 | Mn 2p | mg-0mnl3.os | W92 |
| methylcyclopentadienylmanganese triCO | methylcyclopentadienylmanganese trico | C9H7MnO3 | O 1s | mg-0ookk.os | W92 |
| Methylthiocyanide | methylthiocyanide | C2H3NS | C 1s | tc-0cckk.os | HTM89 |
| Methylthiocyanide | methylthiocyanide | C2H3NS | N 1s | tc-0nnkk.os | HTM89 |
| Methylthiocyanide | methylthiocyanide | C2H3NS | S 2p | tc-0ssl3.os | HTM89 |
| monofluorobenzene | monofluorobenzene | C6FH5 | C 1s | ob-0cckk.os | HF&87 |
| monofluorobenzene | monofluorobenzene | C6FH5 | F 1s | ob-0ffkk.os | HF&87 |
| N,N Dimethylaniline | n dimethylaniline | C8H11N | C 1s | ax-0cckk.os | HUR93 |
| N,N Dimethylaniline | n dimethylaniline | C8H11N | N 1s | ax-0nnkk.os | HUR93 |
| N,N,N-tritolyl isocyanurate | n,n-tritolyl isocyanurate | C24H21N3O3 | C 1s | yi-0cckk.os | UA&99 |
| N,N-di(t-butyl)ethylenediamine | n-di(t-butyl)ethylenediamine | C10H24N2 | C 1s | yl-0cckk.os | LU&99 |
| N,N-di(t-butyl)ethylenediamine | n-di(t-butyl)ethylenediamine | C10H24N2 | N 1s | yl-0nnkk.os | LU&99 |
| N,N-diphenyl urea | n-diphenyl urea | C13H12N2O | C 1s | ij-0cckk.os | UH&95b |
| N,N-diphenyl urea | n-diphenyl urea | C13H12N2O | N 1s | ij-0nnkk.os | UH&95b |
| N,N-diphenyl urea | n-diphenyl urea | C13H12N2O | O 1s | ij-0ookk.os | UH&95b |
| Naphthalene | naphthalene | C10H8 | C 1s | na-1cckk.os | GT&03 |
| Naphthalene | naphthalene | C10H8 | C 1s | na-0cckk.os | RI&88 |
| S-naphthalene | naphthalene | C6H4N2S2 | C 1s | bl-0cckk.os | HD&91 |
| S-naphthalene | naphthalene | C6H4N2S2 | N 1s | bl-0nnkk.os | HD&91 |
| S-naphthalene | naphthalene | C6H4N2S2 | S 2p,2s | bl-0sskk.os | HD&91 |
| Neon | neon | Ne | Ne 1s | ne-0nekk.os | HB80c |
| Neon | neon | Ne | Ne 1s | aaa-nell.os | SF |
| nickel-phthalocyanine | nickel-phthalocyanine | C32H16NiN8 | C 1s | zn-0cckk.os | RSH93 |
| Nickelocene | nickelocene | C10NiH10 | C 1s | ni-0cckk.os | HI87 |
| Nitric Oxide | nitric oxide | NO | N 1s | no-0nnkk.os | HF15 |
| Nitric Oxide | nitric oxide | NO | O 1s | no-0ookk.os | HF15 |
| nitro benzene | nitro benzene | C6H5NO2 | C 1s | nj-0cckk.os | TUH96 |
| nitro benzene | nitro benzene | C6H5NO2 | N 1s | nj-0nnkk.os | TUH96 |
| nitro benzene | nitro benzene | C6H5NO2 | O 1s | nj-0ookk.os | TUH96 |
| Nitrogen | nitrogen | N | N 1s | aaa-nnkk.os | SF |
| Nitrogen | nitrogen | N2 | N 1s | nn-0nnkk.os | MC&87 |
| Norbornene | norbornene | C7H10 | C 1s | nb-0cckk.os | WH&90 |
| Octafluoronaphthalene(i.e.Perfluoro-) | octafluoronaphthalene(i.e.perfluoro | C10F8 | C 1s | nf-0cckk.os | RI&88 |
| Octafluoronaphthalene(i.e.Perfluoro-) | octafluoronaphthalene(i.e.perfluoro | C10F8 | F 1s | nf-0ffkk.os | RI&88 |
| 3-octyl-thiophene | octyl-thiophene | C12H21S | C 1s | sx-0cckk.os | HT&89 |
| 3-octyl-thiophene | octyl-thiophene | C12H21S | S 2p | sx-0ssl3.os | HT&89 |
| ortho nitro aniline | ortho nitro aniline | C6H6N2O2 | C 1s | ng-0cckk.os | TUH 96 |
| ortho nitro aniline | ortho nitro aniline | C6H6N2O2 | N 1s | ng-0nnkk.os | TUH 96 |
| ortho nitro aniline | ortho nitro aniline | C6H6N2O2 | O 1s | ng-0ookk.os | TUH 96 |
| Ortho-carborane | ortho-carborane | B10C2H12 | B 1s | bg-0bbkk.os | HW&93 |
| Ortho-carborane | ortho-carborane | B10C2H12 | C 1s | bg-0cckk.os | HW&93 |
| Oxygen | oxygen | O | O 1s | aaa-ookk.os | SF |
| Oxygen | oxygen | O2 | O 1s | ox-0ookk.os | HF&93 |
| Oxygen Difluoride | oxygen difluoride | F2O | F 1s | of-0ffkk.os | MI&87 |
| Oxygen Difluoride | oxygen difluoride | F2O | O 1s | of-0ookk.os | MI&87 |