| Masson Trichrome Stain Kit | 00673693169028 | Richard-Allan Scientific LLC | Class A | |
| Mayer | 06952383300359 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Mayer | 06952383300366 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Mayer | 06952383300373 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Mayer's Hematoxylin 1000mL | 08698934340785 | Medikal Olusum Sanayi ve Ticaret Limited Sirketi | Class A | |
| Mayer's Hematoxylin 500mL | 08698934341430 | Medikal Olusum Sanayi ve Ticaret Limited Sirketi | Class A | |
| Mayer's hematoxylin solution | 06430074451684 | Reagena Oy | Class A | |
| MAYERS HEMATOXYLIN SOLUTION | 04061834066460 | Sigma-Aldrich Corporation | Class A | |
| MAYERS HEMATOXYLIN SOLUTION | 04061834066477 | Sigma-Aldrich Corporation | Class A | |
| MAYERS HEMATOXYLIN SOLUTION | 04061838207906 | Sigma-Aldrich Corporation | Class A | |
| MAYERS HEMATOXYLIN SOLUTION | 04061838262004 | Sigma-Aldrich Corporation | Class A | |
| May Grunwald Pappenheim | 08033976232610 | Bio-Optica Milano S.p.A. | Class A | |
| May Grunwald Pappenheim | 08033976232627 | Bio-Optica Milano S.p.A. | Class A | |
| May Grunwald Pappenheim | 08033976234867 | Bio-Optica Milano S.p.A. | Class A | |
| May Grünwald Pappenheim 1000 ml | 08057724950434 | Micras di Cipressi Gabriele | Class A | |
| May Grünwald Pappenheim 20 l | 08057724951998 | Micras di Cipressi Gabriele | Class A | |
| May Grünwald Pappenheim 2500 ml | 08057724950441 | Micras di Cipressi Gabriele | Class A | |
| May Grünwald Pappenheim 500 ml | 08057724950458 | Micras di Cipressi Gabriele | Class A | |
| MAY GRUNWALD REAGENTE | 08050054130682 | Titolchimica S.p.A. | Class A | |
| MAY GRUNWALD REAGENTE | 08050054130699 | Titolchimica S.p.A. | Class A | |
| MAY GRUNWALD REAGENTE | 08050054130705 | Titolchimica S.p.A. | Class A | |
| MAY-GRUNWALD REAGENTE | 08050054130712 | Titolchimica S.p.A. | Class A | |
| May-Grünwald's buffer(concentrated) | 06952383313304 | Baso Diagnostics Inc. Zhuhai | Class A | |
| May-Grünwald's stain | 06952383313250 | Baso Diagnostics Inc. Zhuhai | Class A | |
| May-Grünwald's stain | 06952383313281 | Baso Diagnostics Inc. Zhuhai | Class A | |
| May-Grünwald’s Stain | 06952383301882 | Baso Diagnostics Inc. Zhuhai | Class A | |
| May-Grünwald Stain | 00673693090445 | Richard-Allan Scientific LLC | Class A | |
| MAY-GRÜNWALD STAIN | 04061834066415 | Sigma-Aldrich Corporation | Class A | |
| MAY-GRÜNWALD STAIN | 04061834066422 | Sigma-Aldrich Corporation | Class A | |
| MAY-GRÜNWALD STAIN | 04061838106391 | Sigma-Aldrich Corporation | Class A | |
| MAY-GRÜNWALD STAIN | 04061838261991 | Sigma-Aldrich Corporation | Class A | |
| Methenamine-Borax Capsules | 00673693089708 | Richard-Allan Scientific LLC | Class A | |
| Methylene blue counterstain method | 06952383302759 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methylene blue counterstain method | 06952383302766 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methylene blue counterstain method | 06952383315360 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methylene blue solution | 06952383300694 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methylene blue solution | 06952383300991 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methylene blue solution | 06952383301028 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methylene blue solution | 06952383302520 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methylene blue solution | 06952383303824 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methyl green method | 06952383300878 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methyl green method | 06952383301349 | Baso Diagnostics Inc. Zhuhai | Class A | |
| Methyl green method | 06952383301356 | Baso Diagnostics Inc. Zhuhai | Class A | |
| METHYL GREEN-PYRONIN (MGP) SOLUTION | 04061833835456 | Sigma-Aldrich Corporation | Class A | |
| Methyl Green-Pyronin Y Stain Solution | 00673693089210 | Richard-Allan Scientific LLC | Class A | |
| MGG Quick Stain | 08033976230999 | Bio-Optica Milano S.p.A. | Class A | |
| MGG Quick Stain | 08034120274777 | Bio-Optica Milano S.p.A. | Class A | |
| MGG quick stain - 4 reagenti in formato da 1 litro | 08052597870230 | Bio-Optica Milano S.p.A. | Class A | |
| Modified EA | 00673693088404 | Richard-Allan Scientific LLC | Class A | |
| Modified Grocott’s Methenamine Silver Stain Kit | 00673693089180 | Richard-Allan Scientific LLC | Class A | |