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

?? ?:Cato Research Chemicals Inc.
??:020-81960175
???:3008394369@qq.com
??:China
URL: www.cato-chem.com/
? ?? ?:15726
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Carvedilol EP impurity B??????-???918903-20-5C39H39N3O6
Diosmin EP Impurity D1431536-92-3C28H31IO15
Everolimus impurity 421708118-13-1C53H83NO14
Butafosfan17316-67-5C7H18NO2P
Nintedanib Impurity 7656961-85-4C7H4Cl4
Drospirenone EP Impurity C6,7,15,16-????-4-?-3,17-???????116298-21-6C21H26O2
Bortezomib Impurity 61132709-14-8C19H25BN4O4
6-Aminocaproic Acid Dimer?????,6-[(6-AMINO-1-OXOHEXYL)???]-2014-58-6C12H24N2O3
Nicorandil????65141-46-0C8H9N3O4
Vonoprazan Impurity 41807642-39-2C16H10FN3O2S
Alprazolam EP Impurity E2- ??? -5- ??? ??719-59-5C13H10ClNO
Norfloxacin EP Impurity I
Riboflavin-3＇-phosphate80400-93-7C17H21N4O9P
Fluorouracil Impurity 146623-81-0C5H6N2O3
Amorolfine EP Impurity F106614-66-8C14H20O
Landiolol Impurity 37
Losartan EP Impurity JO-???????1006062-27-6C24H25ClN6O2
Dabigatran Impurity 66211914-50-0C27H30ClN7O3
Dexamethasone Acetate EP Impurity F21-O-????????9,11-?????2884-51-7C24H30O6
Axitinib Impurity 1???????a1347304-18-0C22H18N4O2S
Canagliflozin Impurity 151830346-16-1C15H14BrClO
Cefuroxime Sodium EP Impurity B39685-31-9C17H17N3O8S
Molsidomine EP Impurity BN-????????59-89-2C4H8N2O2
Atomoxetine-d3 HCl1217776-38-9C17H22ClNO
Isosorbide Dinitrate Impurity 13??????????16051-77-7C6H9NO6
Cefuroxime Sodium EP Impurity C69822-88-4C15H15N3O6S
S-Polaprezinc Impurity 87389-97-1C17H16N4O5
Spironolactone EP Impurity I
(4-aminobenzoyl)-D-glutamic acid5959-18-2C12H14N2O5
Oxcarbazepine Impurity 1233948-22-0C15H10ClNO
Ceftriaxone Disodium Salt Hemiheptahydrate?????? ??? ?????????104376-79-6C18H21N8NaO8S3
D-Glucaric acid87-73-0C6H10O8
Cefotaxime EP Impurity C66403-32-5C17H17N5O8S2
Flunarizine Impurity 161,1'-(??????)??(4-??????)345-90-4C13H9BrF2
(R,R)Palonosetron HCl??????HCL135729-75-8C19H24N2O
Linagliptin Impurity 76 (Mixture of Diastereomers)
Carbidopa EP Impurity Bα-??-3,4-?????-L-???????????18181-08-3C11H15NO4
Argatroban Impurity 14 (Mixture of Diastereomers)(2S,4S)-??????189264-03-7C23H36N6O5S
Pramipexole Impurity BI-IO460BSracN-???-2-?????????-5-????1246833-75-9C10H15N3O2
Omadacycline389139-89-3C29H40N4O7
Riboflavin-4＇-phosphate60697-29-2C17H21N4O9P
Clemastine Impurity 4???????-1-??????67004-64-2C7H15NO
Dotinurad1285572-51-1C14H9Cl2NO4S
Pimecrolimus Impurity 6
Sodium 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,13-heptacosafluorotridecane-1-sulcid791563-89-8C13HF27O3S
Posaconazole Impurity 156766473-61-4C16H17N3O3
Leuprorelin EP Impurity H Trifluoroacetic acid(D-LEU7)-??????112710-58-4C59H84N16O12
Vonoprazan Impurity 1616133-25-8C5H4ClNO2S
Levonorgestrel EP Impurity C13-Ethyl-3-ethynyl-18,19-dinor-17α-pregna-3,5-dien-20-yn-17-ol(???????????)1337972-89-0C23H28O
Tenofovir disoproxil Impurity 13????????????????????1244022-54-5C23H36N5O12P
Carfilzomib Impurity 481541172-75-1C40H59N5O8
Olmesartan Impurity 411443544-27-1C5H4Cl2O3
Hyoscine Butylbromide EP Impurity D Bromide30269-50-2C20H28BrNO4
Oseltamivir Impurity 195312904-18-0C19H32N2O4
(S)-Citalopram Oxalate219861-08-2C22H23FN2O5
Pirfenidone Impurity 33?????108-86-1C6H5Br
Cyclophosphamide EP Impurity E DiHCl?????????????D(25mg)(3-[2-(2-????????)?????]????????????)158401-51-5C7H19Cl2N2O4P
Carvedilol EP impurity AN-2-?????-3-[[2-(??????)??]a??????1198090-73-1C36H43N3O7
Ganciclovir EP Impurity H84222-50-4C9H13N5O4
Vonoprazan Fumarate Impurity 30
Azacitidine Impurity 515-?????931-86-2C3H4N4O
Arbidol Impurity 3153633-10-4C22H24Br2N2O3S
Ornidazole Impurity 14116989-52-7C6H8ClN3O3
Tolvaptan Impurity 261580889-25-3C26H25ClN2O3
Caffeine Impurity 5????611-59-6C7H8N4O2
Meropenem Impurity 42,6-???108-48-5C7H9N
Methylprednisolone EP Impurity F1625-39-4C22H32O5
Pramipexole Dihydrochloride Monohydrate191217-81-9C10H20ClN3OS
Cumene Hydroperoxide technical grade, 80%???????????80-15-9C9H12O2
Azilsartan Impurity 11586011-04-2C26H25N3O4
Imatinib????152459-95-5C29H31N7O
Tenofovir disoproxil???????????????202138-50-9C23H34N5O14P
Ubidecarenone (Coenzyme Q10) EP Impurity E65085-30-5C59H90O4
Faropenem Sodium158365-51-6C12H18NNaO6S
Lurasidone Impurity 48R,R-??-????HCl1318074-25-7C28H36N4O2S
Vonoprazan Fumarate Impurity 25-(2-??????)-1H-??-3-??????1240948-77-9C11H7FN2
Beclomethasone dipropionate EP Impurity I52092-12-3C28H36O6
Vericiguat????1350653-20-1C19H16F2N8O2
Montelukast EP Impurity A220927-27-5C35H36ClNO3S
Buspirone hydrochloride???? ?????33386-08-2C21H32ClN5O2
Dexmedetomidine Impurity 92240179-63-7C13H16N2
Tolvaptan Impurity 231580889-33-3C25H23ClN2O3
Silicristin33889-69-9C25H22O10
Calcifediol Monohydrate?-25-OH???D63283-36-3C27H46O3
Isosorbide Dinitrate EP Impurity B16106-20-0C6H9NO6
Ilaprazole Impurity 24
Limaprost74397-12-9C22H36O5
Safinamide mesylate202825-46-5C17H19FN2O2.CH4O3S
Lumateperone Tosylate Salt?????(?????)1187020-80-9C31H36FN3O4S
Nafamostat Impurity 1963101-32-6C9H12ClN5O2
Canagliflozin Impurity 57
Dexamethasone Sodium Phosphate EP Impurity I
Brimonidine EP Impurity G Trifluoroacetic acid salt1391054-10-6C13H13BrF3N5O3
Sugammadex Impurity Org197339-1
Levothyroxine Impurity 29(Mixture of Diastereomers)
Fluazinam Impurity 1169327-87-1C13H4Cl2F6N4O4
Paroxetine Impurity 642361294-43-9C19H19FN2O4
Pramipexole Impurity 7177835-18-8C21H24O5
Benazepril EP Impurity B(1R,3S-Isomer)86541-76-6
Cefazolin USP Related Compound D(Diastereoisomer Mixture)
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