| CHEM000092 | Thorium CAS7440-29-1 | Th monoisotopic mass232.038 Avg mass232.038 | | |
| CHEM000098 | Thorium-230 CAS14269-63-7 | Th monoisotopic mass230.033 Avg mass230.033 | | |
| CHEM000099 | Uranium-235 CAS15117-96-1 | U monoisotopic mass235.044 Avg mass235.044 | | |
| CHEM000102 | Uranium-234 CAS13966-29-5 | U monoisotopic mass234.041 Avg mass234.041 | | |
| CHEM000104 | Thorium-228 CAS14274-82-9 | Th monoisotopic mass228.029 Avg mass228.029 | | |
| CHEM000111 | Plutonium-239 CAS15117-48-3 | Pu monoisotopic mass239.052 Avg mass239.052 | | |
| CHEM000114 | Plutonium-238 CAS13981-16-3 | Pu monoisotopic mass238.050 Avg mass238.050 | | |
| CHEM000116 | Plutonium CAS7440-07-5 | Pu monoisotopic mass244.000 Avg mass244.000 | | |
| CHEM000119 | Americium-241 CAS86954-36-1 | Am monoisotopic mass241.057 Avg mass241.057 | | |
| CHEM000126 | Neptunium-237 CAS13994-20-2 | Np monoisotopic mass237.048 Avg mass237.048 | | |
| CHEM000130 | Plutonium-240 CAS14119-33-6 | Pu monoisotopic mass240.054 Avg mass240.054 | | |
| CHEM000161 | Americium CAS7440-35-9 | Am monoisotopic mass243.000 Avg mass243.000 | | |
| CHEM000162 | Uranium-233 CAS13968-55-3 | U monoisotopic mass233.040 Avg mass233.040 | | |
| CHEM000193 | Thorium-227 CAS15623-47-9 | Th monoisotopic mass227.028 Avg mass227.028 | | |
| CHEM000202 | Actinium-227 CAS14952-40-0 | Ac monoisotopic mass227.028 Avg mass227.028 | | |
| CHEM000704 | Uranium-238 CAS7440-61-1 | U monoisotopic mass238.051 Avg mass238.051 | | |
| CHEM002952 | Uranium CASNot Available | U monoisotopic mass238.051 Avg mass238.029 | | |
| CHEM106450 | Neptunium CASNot Available | Np monoisotopic massNot Available Avg massNot Available | | |
| CHEM131745 | Actinium CAS7440-34-8 | Ac monoisotopic mass227.000 Avg mass227.000 | | |
| CHEM131790 | Berkelium CAS7440-40-6 | Bk monoisotopic mass247.000 Avg mass247.000 | | |