| Subject | German | English |
| commun. | N6 | U6 |
| commun. | N6 | call present |
| chem. | 1,2,3,6-Tetrahydro-N-1,1,2,2-tetrachlorethylthio | captafol ISO |
| chem. | 1,2,3,6-Tetrahydro-N-1,1,2,2-tetrachlorethylthio | 1, 2, 3, 6-tetrahydro-N-1,1,2,2-tétrachloroethylthio phthalimide |
| biol. | 2,2,6,6-Tetramethyl-4piperidinol-N-oxyl | 2,2,6,6-tetramethyl-4-piperidinol-N-oxyl (a radiosensitizer) |