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Cato Research Chemicals Inc.??? ?? ??? ?????.

?? ?:Cato Research Chemicals Inc.
??:020-81960175
???:tianwen.zhan@cato-chem.com
??:China
URL: www.cato-chem.com/
? ?? ?:7734
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Ceftizoxime Impurity 137-???-3-???????-4-????68403-70-3C7H10N2O4S
Trazodone EP Impurity G HCl2470441-00-8
Oseltamivir Impurity 47
Ceftizoxime Impurity 964918-77-0C7H8N2O4S
Ruxolitinib Impurity 12606144-44-7C16H18N6O2
Revefenacin Impurity 13864760-28-1C29H31N3O4
Phenylephrine Impurity 14(S)-????????939-38-8C9H14ClNO2
Propranolol EP Impurity A36112-95-5C13H14O3
Progesterone EP Impurity A24377-08-0C21H28O2
Progesterone EP Impurity B4-????-20-??-?-3-?145-14-2C21H32O2
Cholecalciferol EP Impurity F (Cholecalciferol Butyrate)31316-20-8C31H50O2
Bifonazole EP Impurity B91679-37-7C22H18N2
Piperacillin EP Impurity C2649505-15-5C22H29N5O6S
Vancomycin EP Impurity L23-De(aMinocarbonyl)-23-?????????79517-31-0C66H74Cl2N8O25
Vancomycin EP Impurity E?????CDP-155598-85-1C66H74Cl2N8O25
Vitamin A EP Impurity C（Mixture of Z and E Isomers）16729-22-9C20H30O
Verapamil EP Impurity I(HCl)?????????B(50MG)??)-????????????)1794-55-4C26H37ClN2O4
Peramivir Impurity 9 TFA salt229614-37-3C14H26N2O4
Sugammadex Impurity Org199074-12412952-81-7C72H112O48S9
Amikacin EP Impurity H????B48237-20-3C22H44N6O12
Brivaracetam Impurity 372165431-90-1C11H19NO3
Baloxavir Impurity 31985606-14-1C27H23F2N3O7S
13-cis-Vitamin A Palmitate26771-20-0C36H60O2
Pilocarpine EP Impurity A??-????????28958-85-2C11H17ClN2O2
Pilocarpine EP Impurity C Sodium Salt???????????101769-87-3C11H19N2NaO3
(R)-Carbidopa28875-92-5C10H14N2O4
Landiolol Impurity 114432-25-1C12H22N4O4
Pemafibrate???????848259-27-8C28H30N2O6
Eperisone HCl56839-43-1C17H26ClNO
Tizanidine Impurity 6173532-15-5C11H10ClN5OS
Phenylephrine EP Impurity A HCl (R-Isomer)DL-??????????636-87-3C8H12ClNO2
Edoxaban Impurity 542605225-71-4C31H38ClN7O7S2
Bromhexine Impurity 131660957-96-9C14H21BrCl2N2
Ondansetron EP Impurity A119812-29-2C16H21ClN2O
Nicardipine EP Impurity A (Dehydro Nicardipine)59875-58-0C26H27N3O6
N-Nitroso Ciprofloxacin864443-44-7C17H17FN4O4
Probucol USP RC C4-[(3,5-?-tert-??-2-????????)?????????]-2,6-?-tert-????1391054-68-4C31H48O2S2
Eperisone Impurity N170639-76-8C12H14O
Probucol USP RC B4,4'-(?????)??(2,6-?-tert-????)6386-58-9C28H42O2S2
Sodium 4',5'-dibromo-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate)??201?4372-02-5C20H8Br2Na2O5
Thiochrome92-35-3C12H14N4OS
Sucrose Heptasulfate Potassium Salt386229-69-2C12H15K7O32S7
Edoxaban Impurity 552852734-44-0C31H38ClN7O7S2
Edoxaban Impurity 572852734-47-3
Ilaprazole Impurity 342285351-50-8C19H19N4O+
Brexpiprazole Impurity 342247155-42-4C25H27N3O4S
Ilaprazole Impurity 52285346-44-1C19H18N4O3S
Febuxostat Impurity 622476465-11-7C18H21NO5S
Rosuvastatin EP Impurity A (Calcium Salt)1714147-47-3C25H36CaFN3O7S
Sodium Fusidate EP Impurity J13011-12-6C29H44O4
Isavuconazole Impurity 64Trifluoroacetate（Easy to absorb moisture）
Perindopril EP Impurity E1356837-89-2C20H34N2O5
Pregabalin EP Impurity D2-????-2-???????????????4118-51-8C11H14O3
Pregabalin Impurity 534-????-2-?????61312-87-6C8H15NO
Telmisartan EP Impurity B1026353-20-7C33H30N4O2
Ampicillin EP Impurity F
Tropicamide EP Impurity B57322-50-6C17H18N2O
Vitamin K1 Impurity 215576-40-6C31H46O3
Pilocarpine EP Impurity B??????????92598-79-3C11H17N2NaO3
Upadacitinib Impurity 17N-??-5-???-4,7-?????1201186-54-0C13H10BrN3O2S
Phytanic acid ethyl ester3862-29-1C22H44O2
(5Z,8Z,11Z,14Z,17Z)-ethyl nonadeca-5,8,11,14,17-pentaenoate2347415-07-8C21H32O2
Ornidazole Impurity 201413431-46-5C11H18N4O5
cis-Terbinafine Hydrochloride??-????????176168-78-8C21H26ClN
Terbinafine EP Impurity E???????????934365-23-8C36H40N2
Potassium Clavulanate EP Impurity F4-[4-(2-??????)-1H-??-3-????????]-1H-??-3-?????(????????)1260857-16-6C13H14N2O5
Perindopril EP Impurity D?????????MB130061-28-8C17H26N2O4
Perindopril EP Impurity C?????????MA129970-99-6C17H26N2O4
Erythromycin EP Impurity M616234-56-1C37H67NO13
Vonoprazan Impurity 1812250243-23-1C33H27F2N5O4S2
Vortioxetine Impurity 452925447-38-5C18H21N3OS
Empagliflozin Impurity 12
Bromhexine Impurity 7 HCl
Rivaroxaban EP Impurity D1365267-35-1C29H32N6O9
Palonosetron USP Related Compound B1021456-82-5C19H22N2O2
Palonosetron Impurity 5135729-55-4C19H23ClN2O
Ilaprazole Impurity 322285346-39-4C18H16N4O
Ilaprazole Impurity 502285346-38-3
Atorvastatin EP Impurity F(Calcium Salt)AtorvastatinN-(3,5-Dihydroxy-7-heptanoicAcid)???1105067-87-5C40H50CaFN3O8
Atorvastatin EP Impurity C Calcium Salt693793-53-2C33H36CaF2N2O5
Cefixime EP Impurity E72701-01-0C15H15N5O7S2
Levofloxacin Impurity 521152314-62-9C17H17FN4O5
Folic Acid EP Impurity H2366274-27-1C31H31N9O10
Tizanidine Impurity 85391-52-6C5H8N2OS
Loxoprofen Impurity 83334948-52-6C13H18O8
Propranolol EP Impurity B83314-78-7C29H33NO4
Piperacillin Impurity 14(Piperacillin EP Impurity B)?????64817-22-7C23H29N5O8S
Trazodone EP Impurity M157072-18-9C19H23ClN5O
Vancomycin EP Impurity K Ditrifluoroacetate
Ceftizoxime Impurity 833477-97-3C15H14N2O4S
Ruxolitinib?????941678-49-5C17H18N6
Urapidil Impurity 3339615-79-7C6H9N3O2
Vancomycin EP Impurity C?????????82198-76-3C53H52Cl2N8O17
BB-K 6 Disulfate Salt (Amikacin EP Impurity E Disulfate)50866-72-3C22H43N5O13
Nicorandil Impurity 49 2Nitrat2365474-06-0C24H27N8O9+
Tretinoin EP Impurity C (Isotretinoin EP Impurity C, 11,13-di-cis-Retinoic Acid)11-??,13-??-3555-80-4C20H28O2
Ruxolitinib Impurity 32102675-40-9C17H19N5O2
Tretinoin EP Impurity B (9,13-di-cis-Retinoic Acid)9,13-????5352-74-9C20H28O2
Ruxolitinib Phosphate1092939-17-7C17H21N6O4P
Vancomycin EP Impurity D????????????101485-50-1C59H62Cl2N8O22
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