| Total Thyroxine Chemiluminescence Immunoassay Kit | 06955792740693 | Sansure Biotech Inc. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06955792740709 | Sansure Biotech Inc. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06955792740716 | Sansure Biotech Inc. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06955792740723 | Sansure Biotech Inc. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06955792740730 | Sansure Biotech Inc. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06972719600625 | Nanjing RealMind Biotech Co., Ltd. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06972719602032 | Nanjing RealMind Biotech Co., Ltd. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06972719602049 | Nanjing RealMind Biotech Co., Ltd. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06972719602056 | Nanjing RealMind Biotech Co., Ltd. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06972719604241 | Nanjing RealMind Biotech Co., Ltd. | Unknown class | |
| Total Thyroxine Chemiluminescence Immunoassay Kit | 06972719604258 | Nanjing RealMind Biotech Co., Ltd. | Unknown class | |
| Total Thyroxine (CLIA) | 06926802606087 | MEDCAPTAIN MEDICAL TECHNOLOGY CO., LTD. | Unknown class | |
| Total Thyroxine (CLIA) | 06926802606094 | MEDCAPTAIN MEDICAL TECHNOLOGY CO., LTD. | Unknown class | |
| Total Thyroxine (CLIA) | 06926802606100 | MEDCAPTAIN MEDICAL TECHNOLOGY CO., LTD. | Unknown class | |
| Total Thyroxine (CLIA) | 06944904047652 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Class B | |
| Total Thyroxine (CLIA) | 06944904047867 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Class B | |
| Total Thyroxine CLIA Kit (Chemiluminescence Immunoassay) | 06942293590032 | Beijing Diagreat Biotechnologies Co., Ltd. | Class B | |
| Total Thyroxine Determination Kit (Fluorescence Immunochromatographic Assay) | 06942293581030 | Beijing Diagreat Biotechnologies Co., Ltd. | Class B | |
| Total Thyroxine Kit (Electrochemiluminescence Immunoassay) | 06970341686086 | Shenzhen Lifotronic Technology Co., Ltd. | Unknown class | |
| Total Thyroxine Kit (Electrochemiluminescence Immunoassay) | 06970341689421 | Shenzhen Lifotronic Technology Co., Ltd. | Unknown class | |
| Total Thyroxine Kit（Electrochemiluminescence Immunoassay） | 06970341680916 | Shenzhen Lifotronic Technology Co., Ltd. | Class B | |
| Total Thyroxine Kit（Electrochemiluminescence Immunoassay） | 06970341689414 | Shenzhen Lifotronic Technology Co., Ltd. | Class B | |
| Total Thyroxine (T4) Test Kit (Immunofluorescence Method) | 06973720132068 | WUHAN EASYDIAGNOSIS BIOMEDICINE CO., LTD. | Unknown class | |
| Total Thyroxine (T4) Test Kit (Immunofluorescence Method) | 06978896418374 | WUHAN EASYDIAGNOSIS BIOMEDICINE CO., LTD. | Unknown class | |
| Total Thyroxine (T4) Test Kit (lmmunofluorescence Method) | 06978896415588 | WUHAN EASYDIAGNOSIS BIOMEDICINE CO., LTD. | Unknown class | |
| Total Thyroxine (T4) Test Kit (lmmunofluorescence Method) | 06978896415595 | WUHAN EASYDIAGNOSIS BIOMEDICINE CO., LTD. | Unknown class | |
| Total Thyroxine test (Chemiluminescence Immunoassay) | 06936700403497 | Beijing Hotgen Biotech Co., Ltd. | Class B | |
| Total Thyroxine Test Kit (CLIA) | 10850076346055 | Healgen Life Science, LLC | Unknown class | |
| Total Thyroxine Test Kit (CLIA) | 20850076346052 | Healgen Life Science, LLC | Unknown class | |
| Total Thyroxine test (Up-converting Phosphor Technology) | 06936700408720 | Beijing Hotgen Biotech Co., Ltd. | Class B | |
| Total Thyroxine (TT4) Assay Kit (Chemiluminescent Immunoassay) | 06974986813517 | Wuhan Life Origin Biotech Joint Stock Co., Ltd. | Unknown class | |
| Total Thyroxine (TT4) Assay Kit (Chemiluminescent Immunoassay) | 06974986813524 | Wuhan Life Origin Biotech Joint Stock Co., Ltd. | Unknown class | |
| Total Thyroxine (TT4) Assay Kit (Chemiluminescent Immunoassay) | 06974986814453 | Wuhan Life Origin Biotech Joint Stock Co., Ltd. | Unknown class | |
| Total Thyroxine（TT4）Detection Kit （Magnetic Solid Phase Chemiluminescent Immunoassay） | 06974969980960 | Biobase Diagnostic Technology (Shandong) Co., Ltd. | Unknown class | |
| Total Thyroxine（TT4）Detection Kit （Magnetic Solid Phase Chemiluminescent Immunoassay） | 06974969981530 | Biobase Diagnostic Technology (Shandong) Co., Ltd. | Unknown class | |
| Total Thyroxine（TT4）Detection Kit （Magnetic Solid Phase Chemiluminescent Immunoassay） | 06974969982100 | Biobase Diagnostic Technology (Shandong) Co., Ltd. | Unknown class | |
| Total Thyroxine（TT4）Determination Kit（ Chemiluminescence Immunoassay ） | 06976968300619 | Shenzhen Channel Biotechnology Co.,Ltd. | Unknown class | |
| Total Thyroxine (TT4) Diagnostic Kit ( Immunochromatographic Assay) | 06971348760274 | Shenzhen Microprofit Biotech Co., Ltd | Unknown class | |
| Total Thyroxine (TT4) Diagnostic Kit ( Immunochromatographic Assay) | 06971348762803 | Shenzhen Microprofit Biotech Co., Ltd | Class B | |
| Total Thyroxine (TT4) Diagnostic Kit ( Immunochromatographic Assay) | 06971348764623 | Shenzhen Microprofit Biotech Co., Ltd | Class B | |
| Total Thyroxine (TT4) Quantitative Diagnostic Kit (CLIA) | 06974671101813 | Darui Biotechnology Co., Ltd. | Unknown class | |
| Total Thyroxine (TT4) Quantitative Diagnostic Kit (TRFIA) | 06974671101400 | Darui Biotechnology Co., Ltd. | Unknown class | |
| Total thyroxine (TT4) Quantitative Test Kit(Chemiluminescent Immunoassay,CLIA) | 06979355927376 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Total thyroxine (TT4) Quantitative Test Kit(Chemiluminescent Immunoassay,CLIA) | 06979355927383 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Total thyroxine (TT4) Quantitative Test Kit(Chemiluminescent Immunoassay,CLIA) | 06979355927390 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Total thyroxine (TT4) Quantitative Test Kit(Chemiluminescent Immunoassay,CLIA) | 06979355927406 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Total thyroxine (TT4) Quantitative Test Kit(Chemiluminescent Immunoassay,CLIA) | 06979355927413 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Total thyroxine (TT4) Quantitative Test Kit(Chemiluminescent Immunoassay,CLIA) | 06979355927420 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Total thyroxine (TT4) Quantitative Test Kit(Chemiluminescent Immunoassay,CLIA) | 06979355927437 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
| Total thyroxine (TT4) Quantitative Test Kit(Chemiluminescent Immunoassay,CLIA) | 06979355927444 | JIANGSU CONFIDENCE MEDICAL TECHNOLOGY CO.,LTD | Unknown class | |
UDI Compass