| Turkey feathers | 04251557102877 | Unknown class | |
| Turnip | 04251557104574 | Unknown class | |
| Tyramine | 04251557102211 | Unknown class | |
| Tyrophagus putrescentiae | 04251557102600 | Unknown class | |
| Ureaplasma urealyticum / Ureaplasma parvum Multiplex PCR kit | 04251557100972 | Unknown class | |
| Ureaplasma urealyticum / Ureaplasma parvum Multiplex PCR kit | 04251557100989 | Unknown class | |
| Ureaplasma urealyticum / Ureaplasma parvum Multiplex PCR kit | 04251557109234 | Unknown class | |
| Ureaplasma urealyticum / Ureaplasma parvum Multiplex PCR kit | 04251557109241 | Unknown class | |
| Ureaplasma urealyticum / Ureaplasma parvum Multiplex PCR kit | 04251557109258 | Unknown class | |
| Ureaplasma urealyticum / Ureaplasma parvum Multiplex PCR kit | 04251557109265 | Unknown class | |
| Ureaplasma urealyticum / Ureaplasma parvum Multiplex PCR kit | 04251557109289 | Unknown class | |
| Ureaplasma urealyticum / Ureaplasma parvum Multiplex PCR kit | 04251557109296 | Unknown class | |
| Ustilago avenae | 04251557107018 | Unknown class | |
| Ustilago cynodontis | 04251557107025 | Unknown class | |
| Ustilago maydis | 04251557107032 | Unknown class | |
| Ustilago nuda | 04251557107049 | Unknown class | |
| Ustilago tritici | 04251557107056 | Unknown class | |
| Vancomycin | 04251557108459 | Unknown class | |
| Vanilla | 04251557104628 | Unknown class | |
| Veal | 04251557104079 | Unknown class | |
| Velvet grass (Holcus lanatus) | 04251557105946 | Unknown class | |
| Viburnum berries | 04251557108497 | Unknown class | |
| Virginia live oak (Quercus virginiana) | 04251557107810 | Unknown class | |
| Wall pellitory (Parietaria judaica) | 04251557108190 | Unknown class | |
| Wall pellitory (Parietaria officinalis) | 04251557108176 | Unknown class | |