| Scott’s Tap Water Substitute Working Solution | 00849832014003 | Leica Biosystems Richmond, Inc | Class A | |
| SelecTech Blue Buffer 8 Concentrate | 00849832002901 | Leica Biosystems Richmond, Inc | Class A | |
| SelecTech Blue Buffer 8 Ready-to-Use | 00849832019312 | Leica Biosystems Richmond, Inc | Class A | |
| SelecTech Define Concentrate | 00849832017936 | Leica Biosystems Richmond, Inc | Class A | |
| SelecTech Define MX-aq Concentrate | 10849832003011 | Leica Biosystems Richmond, Inc | Class A | |
| SelecTech Define MX-aq Ready-to-Use | 10849832022937 | Leica Biosystems Richmond, Inc | Class A | |
| Sensitizing Solution | 00673693201247 | Richard-Allan Scientific LLC | Class A | |
| Silicone Scar Sheet | 06951641900294 | Changsha Hairun Biotechnology Co., Ltd. | Class I | |
| Silver Nitrate Solution #1 | 00673693089906 | Richard-Allan Scientific LLC | Class A | |
| Silver Nitrate Solution (10%) | 00673693202282 | Richard-Allan Scientific LLC | Class A | |
| Silver Nitrate Solution (5%) | 00673693089968 | Richard-Allan Scientific LLC | Class A | |
| SILVER STAIN | 04061833826928 | Sigma-Aldrich Corporation | Class A | |
| S method | 06952383301806 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Sodium Hydroxide Solution (3%) | 00673693089326 | Richard-Allan Scientific LLC | Class A | |
| Sodium Hydroxide Solution (3%) | 00673693202299 | Richard-Allan Scientific LLC | Class A | |
| Sodium Thiosulfate Solution (5%) | 00673693089746 | Richard-Allan Scientific LLC | Class A | |
| Sodium Thiosulfate Solution (5%) | 00673693169103 | Richard-Allan Scientific LLC | Class A | |
| SOLUTIE DE IOD 120ml | 05940652026384 | SC MEDICAMED MARKET SRL | Class A | |
| STAINTABS - EOSIN 10 TABS | 08033895049924 | Diapath S.p.A. società a socio unico | Class A | |
| STAINTABS - HEMATOXYLIN 10 TABS | 08033895049917 | Diapath S.p.A. società a socio unico | Class A | |
| ST Infinity 2.0 H&E Staining System | 00849832027041 | Leica Biosystems Richmond, Inc | Class A | |
| ST Infinity H&E Staining System | 00849832027171 | Leica Biosystems Richmond, Inc | Class A | |
| STROMATOL | 08033737981177 | Mascia Brunelli S.p.A. | Class A | |
| STROMATOL | 08033737981184 | Mascia Brunelli S.p.A. | Class A | |
| Sudan Black B Staining System | 04061831960860 | Sigma-Aldrich Corporation | Class A | |
| Sudan Black B Stain(SBB) | 06952383300892 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Sulfuric acid solution | 06952383312468 | Baso Diagnostics Inc. Zhuhai | Class A | |
| SUPERPap | 06973094411080 | Junocare Medical Devices Ltd | Class A | |
| SUPERPap | 06973094411110 | Junocare Medical Devices Ltd | Class A | |
| Tartrazine Stain Solution | 00673693089487 | Richard-Allan Scientific LLC | Class A | |
| Three-Step Fixative | 00673693069564 | Richard-Allan Scientific LLC | Class A | |
| Three-Step Fixative | 00673693069649 | Richard-Allan Scientific LLC | Class A | |
| Three-Step Solution A | 00673693069700 | Richard-Allan Scientific LLC | Class A | |
| Three-Step Solution B | 00673693069717 | Richard-Allan Scientific LLC | Class A | |
| Tissue-marking Dyes | 06952383310839 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Tissue-marking Dyes | 06952383310846 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Tissue marking reagent (black) | 06952383310877 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Tissue marking reagent (blue) | 06952383310860 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Tissue marking reagent (brownish red) | 06952383312406 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Tissue marking reagent (green) | 06952383310853 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Tissue marking reagent (orange) | 06952383312413 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Tissue marking reagent (purple) | 06952383312437 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Tissue marking reagent (yellow) | 06952383312420 | Baso Diagnostics Inc. Zhuhai | Class A | |
| TRICHROME STAIN AB SOLUTION | 04061833828342 | Sigma-Aldrich Corporation | Class A | |
| TRICHROME STAIN LG SOLUTION | 04061833827628 | Sigma-Aldrich Corporation | Class A | |
| TRICHROME STAIN (MASSON) | 04061838261854 | Sigma-Aldrich Corporation | Class A | |
| Trypan blue Stain | 06952383305392 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Trypan blue Stain | 06952383305408 | Baso Diagnostics Inc. Zhuhai | Class A | |
| type I | 06952383300441 | Baso Diagnostics Inc. Zhuhai | Class A | |
| type I | 06952383301141 | Baso Diagnostics Inc. Zhuhai | Class A | |
UDI Compass