| Warp Red™ Chromogen Kit, 500mL | 00847627013903 | Biocare Medical | Class A | |
| Warthin-starry | 08033976230722 | Bio-Optica Milano S.p.A. | Class A | |
| Washing Solution | 06971808256231 | Wuhan HealthCare Biotechnology Co., Ltd. | Class A | |
| Washing Solution | 06971808258266 | Wuhan HealthCare Biotechnology Co., Ltd. | Class A | |
| Washing Solution | 06971808258273 | Wuhan HealthCare Biotechnology Co., Ltd. | Class A | |
| Wash Solution Concentrate (50X) 1000 mL | 00810108719311 | ScyTek Laboratories Inc. | Class A | |
| Weigert long method | 08033976230852 | Bio-Optica Milano S.p.A. | Class A | |
| Weigert rapid method | 08033976230883 | Bio-Optica Milano S.p.A. | Class A | |
| Weigert Van Gieson long method | 08033976230869 | Bio-Optica Milano S.p.A. | Class A | |
| Weigert Van Gieson rapid method | 08033976230906 | Bio-Optica Milano S.p.A. | Class A | |
| Wilson Disease Stain | 08033976231422 | Bio-Optica Milano S.p.A. | Class A | |
| X-free | 08034120274906 | Bio-Optica Milano S.p.A. | Class A | |
| X-free | 08034120276085 | Bio-Optica Milano S.p.A. | Class A | |
| X-free for B-Pro 450 | 08034120278522 | Bio-Optica Milano S.p.A. | Class A | |
| XILENE PER USO ISTOLOGICO | 08050054130934 | Titolchimica S.p.A. | Class A | |
| XILENE PER USO ISTOLOGICO | 08050054130941 | Titolchimica S.p.A. | Class A | |
| X-Solv | 05407007970353 | YVSOLAB NV | Class A | |
| Xylene | 03701516402100 | LAURYPATH | Class A | |
| Xylene 1 l - 12 bottle | 08055672950094 | Bio-Optica Milano S.p.A. | Class A | |
| XYLENE 1 LT | 08033895012461 | Diapath S.p.A. società a socio unico | Class A | |
| XYLENE (1 x 1L) | 08430155005896 | QUIMICA CLINICA APLICADA S.A. | Class A | |
| XYLENE (1 x 2.5L) | 08430155010227 | QUIMICA CLINICA APLICADA S.A. | Class A | |
| XYLENE (1 x 5L) | 08430155006183 | QUIMICA CLINICA APLICADA S.A. | Class A | |
| XYLENE 2.5 LT | 08033895012485 | Diapath S.p.A. società a socio unico | Class A | |
| XYLENE 2 LT | 08033895012478 | Diapath S.p.A. società a socio unico | Class A | |
| Xylene 5000 ml | 08057724951820 | Micras di Cipressi Gabriele | Class A | |
| Xylene 5 l | 08055672950087 | Bio-Optica Milano S.p.A. | Class A | |
| XYLENE 5 LT | 08033895037211 | Diapath S.p.A. società a socio unico | Class A | |
| Xylene 97.0-99.0% (Mixture of Isomers) | 05055914721430 | Atom Scientific Ltd | Class A | |
| Xylene 97.0-99.0% (Mixture of Isomers) | 05055914721447 | Atom Scientific Ltd | Class A | |
| Xylene 97.0-99.0% (Mixture of Isomers) | 05055914721454 | Atom Scientific Ltd | Class A | |
| Xylene 97.0-99.0% (Mixture of Isomers) | 05055914721461 | Atom Scientific Ltd | Class A | |
| Xylene 97.0-99.0% (Mixture of Isomers) | 05055914721485 | Atom Scientific Ltd | Class A | |
| Xylene histological grade | 08034120274807 | Bio-Optica Milano S.p.A. | Class A | |
| Xylene histological grade | 08034120274814 | Bio-Optica Milano S.p.A. | Class A | |
| Xylene Histological Grade 1L | 08681349080506 | Medikal Olusum Sanayi ve Ticaret Limited Sirketi | Class A | |
| Xylene Histological Grade 5L | 08681349080513 | Medikal Olusum Sanayi ve Ticaret Limited Sirketi | Class A | |
| Xylene histological grade for B-Pro 450 | 08034120278553 | Bio-Optica Milano S.p.A. | Class A | |
| XYLENE SUBSTITUTE (1 x 2.5L) | 08430155011811 | QUIMICA CLINICA APLICADA S.A. | Class A | |
| XYLENE SUBSTITUTE (1 x 5L) | 08430155006541 | QUIMICA CLINICA APLICADA S.A. | Class A | |
| YES PATH Preservative solution | 08809919760010 | YESONG Co., Ltd. | Class A | |
| YES PATH Preservative solution | 08809919760027 | YESONG Co., Ltd. | Class A | |
| YES PATH Preservative solution | 08809919760034 | YESONG Co., Ltd. | Class A | |
| YES PATH Preservative solution | 08809919760041 | YESONG Co., Ltd. | Class A | |
| Ziehl-Neelsen | 08033976231101 | Bio-Optica Milano S.p.A. | Class A | |
| Ziehl-Neelsen 100 test | 08057724952254 | Micras di Cipressi Gabriele | Class A | |
| Ziehl Neelsen 100 Test | 08698934340815 | Medikal Olusum Sanayi ve Ticaret Limited Sirketi | Class A | |
| ZIEHL NEELSEN DECOLORANTE (ALCOOL-ACIDO) | 08050054130972 | Titolchimica S.p.A. | Class A | |
| Ziehl-Neelsen Fite | 08033976231132 | Bio-Optica Milano S.p.A. | Class A | |
| Ziehl-Neelsen Fite | 08033976231149 | Bio-Optica Milano S.p.A. | Class A | |
UDI Compass