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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/
? ?? ?:7735
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Ivabradine Impurity 44(1S)-4,5-????-1-[(?????)??]??????????866783-13-3C12H18ClNO2
Pramipexole EP Impurity D(R)-?????104632-28-2C10H17N3S
Levocetirizine Impurity 44(R)-????N-???442863-80-1C21H25ClN2O4
Phenylephrine Impurity 19N-(2-???)?????(????????????)915278-80-7C13H17NO6
Pregabalin EP Impurity B/(R)-Pregabalin???,3-(?????)-5-??-,(3R)-148553-51-9C8H17NO2
Ranitidine EP Impurity I2,2'-?????[????]207592-21-0C27H44N8O6S2
Salbutamol Impurity 9Levalbuterol?????E(30mg)(alpha-[{(1,1-Dimethylethyl)amino}methyl]-3-(ethoxy-methyl)-4-hydroxy-benzenemethanol)754926-25-5C15H25NO3
Rivaroxaban EP Impurity A5-R-?????865479-71-6C19H18ClN3O5S
Rivaroxaban Impurity 12?????iMpurityA931204-39-6C19H20ClN3O6S
Ticagrelor Impurity 13274693-39-9C23H28F2N6O6S
Tacrolimus EP Impurity G144490-63-1C44H69NO12
Pramipexole EP Impurity A(S)-4,5,6,7-???????-2,6-????????106092-09-5C7H11N3S
Timolol EP Impurity H158636-97-6C13H24N4O3S
Sitagliptin Monophosphate Monohydrate654671-77-9C16H18F6N5O5P
Sildenafil Impurity 7139756-22-2C17H19ClN4O4S
Rivaroxaban Impurity 39446292-07-5C21H21N3O5
Pantoprazole EP Impurity B102625-64-9C16H15F2N3O3S
Sildenafil EP Impurity C???????139755-91-2C20H26N6O4S
Umeclidinium Impurity 3869113-45-1C29H32BrNO3
Dehydro Rac-Benidipine121138-34-9C28H30ClN3O6
S(-)Amlodipine BesylateS-????150566-71-5C26H31ClN2O8S
Tirofiban Impurity 23LN-?????-P-?????????149490-60-8C13H19NO5S
Telmisartan EP Impurity C144702-26-1C37H38N4O2
Sitagliptin EP Impurity B?????????IMpurity5486460-31-5C16H16F5N5O
Rivastigmine EP Impurity A3-[(1S)-1-(????????)]??139306-10-8C10H15NO
Tacrolimus EP Impurity A104987-12-4C43H69NO12
Pregabalin Impurity 60(R)-(-)-3-???????-5-?????181289-33-8C9H17NO3
Sorafenib impurity A284462-37-9C13H13N3O2
Simvastatin EP Impurity D????????476305-24-5C50H76O10
Rosuvastatin Impurity 83147118-36-3C16H20FN3O3S
Rocuronium EP Impurity C??9943119302-86-2C30H51BrN2O3
Sitagliptin Impurity 33(R)-3-???-4-(2,4,5-????????)????936630-57-8C10H10F3NO2
Telmisartan EP Impurity G???[2,6'-?-1H-??????]-1'-?]??]-144702-27-2C33H29N5
Candesartan Cilexetil145040-37-5C33H34N6O6
Triamcinolone Acetonide Related Compound C(11β,16α)-9-Fluoro-11,21,21-trihydroxy-16,17-[(1-Methylethylidene)bis(oxy)]????-1,4-??-3,20-??161740-69-8C24H31FO7
Tryptophan Impurity 22881025-90-7C11H13ClN2O3
Terbutaline EP Impurity B Hemisulphate153657-83-1C13H21NO7S
Tryptophan EP Impurity A(Tryptophan USP Related Compound A)132685-02-0C24H26N4O4
Pregabalin Impurity 76181289-15-6C9H17NO3
Clavulanate Potassium EP Impurity G374816-32-7C13H15NO6
Telmisartan144701-48-4C33H30N4O2
Sitagliptin Impurity 22?????N-Boc???486460-23-5C21H23F6N5O3
Terbinafine EP Impurity C HCI877265-30-0C21H26ClN
para-Hydroxy Atorvastatin Calcium Salt?????????????????265989-44-4C66H70CaF2N4O12
Ivabradine Impurity 2??-????????148849-68-7C27H37ClN2O5
Isavuconazonium SulfateIsavuconazonium??946075-13-4C35H36F2N8O9S2
Linagliptin Impurity 51886588-63-2C33H30N8O4
Ilaprazole Impurity 1172152-37-3C19H18N4O3S
Parecoxib sodium Impurity 2181695-72-7C16H14N2O3S
Tadalafil Impurity 37171489-59-1C22H19ClN2O5
Telmisartan EP Impurity I528560-93-2C34H32N4O2
Ticagrelor?????274693-27-5C23H28F2N6O4S
Ticagrelor Impurity 7220347-05-7C21H24F2N6O3S
Ursodeoxycholic Acid EP Impurity I130593-75-8C24H42O3
Rabeprazole EP Impurity D??????????924663-38-7C18H21N3O4S
Dapoxetine Impurity 74100306-33-0C9H11ClO
Nilotinib Impurity 26641569-94-0C17H14N4O2
Sertraline EP Impurity F155748-61-1C16H12Cl2O
Quetiapine?????111974-69-7C21H25N3O2S
Sitagliptin Impurity 76209995-38-0C8H5F3O2
Pramipexole Dihydrochloride Monohydrate191217-81-9C10H20ClN3OS
Rabeprazole EP Impurity B117977-21-6C18H21N3O2S
Esomeprazole Sodium161796-78-7C34H36MgN6O6S2
Salbutamol EP Impurity A?????????870076-72-5C14H23NO3
Clindamycin Phosphas EP Impurity L7-????????2-???620181-05-7C18H34ClN2O8PS
Quetiapine EP Impurity I????????????329216-67-3C19H21N3OS
Vilazodone Hydrochloride163521-08-2C26H28ClN5O2
Ivabradine Impurity 177-????????304462-60-0C26H34N2O5
Palbociclib Impurity 315-broMo-2-???-N-?????????-4-??733039-20-8C9H11BrClN3
Rivaroxaban Impurity 13721401-53-2C18H20ClN3O4S
Rivaroxaban Impurity 7(S-isomer)161596-47-0C11H9NO3
Pregabalin EP Impurity A(Pregabalin Related Compound C)181289-23-6C8H15NO
Telmisartan EP Impurity Htert-??4'-(?????)???-2-???????114772-40-6C18H19BrO2
Retigabine150812-12-7C16H18FN3O2
Propofol EP Impurity G(Propofol Related Compound C)PROPOFOL?????C(50MG)(2,6-DIISOPROPYLPHENYLISOPROPYLETHER)141214-18-8C15H24O
Pantoprazole?????102625-70-7C16H15F2N3O4S
Faropenem Sodium158365-51-6C12H18NNaO6S
Sitagliptin Impurity 28BOC-(R)-3-AMINO-4-(2,4,5-TRIFLUORO-PHENYL)-????486460-00-8C15H18F3NO4
Voriconazole EP Impurity C137234-88-9C6H7FN2
(3R,5S)-Atorvastatin EP Impurity B (single configuration) Calcium salt651770-09-1C33H35FN2O5
Rabeprazole EP Impurity A???????117976-47-3C18H21N3O4S
Rivaroxaban EP Impurity G446292-08-6C22H19N3O6
Safinamide mesylate202825-46-5C17H19FN2O2.CH4O3S
Salbutamol EP Impurity F???????147663-30-7C26H40N2O5
Buspirone EP Impurity E257877-43-3C21H33N5O3
Rivastigmine EP Impurity C3'-(??(??)?????)???????855300-09-3C12H15NO3
Umeclidinium Bromide??????869113-09-7C29H34BrNO2
Tryptophan EP Impurity B (Mixture of Diastereomers)??????-L-???184955-21-3C11H12N2O4
Rivastigmine EP Impurity D415973-05-6C14H22N2O2
Ticagrelor Impurity 31274693-26-4C26H32F2N6O4S
Umeclidinium Impurity 101-??????[2.2.2]??-4-???,α,α-???-461648-39-5C20H23NO
Vildagliptin Impurity 4?????iMpurityK565453-39-6C17H27N3O3
Sitagliptin EP Impurity A????????1823817-55-6C16H15F6N5O
Sitagliptin EP Impurity C945261-48-3C16H16F5N5O
Rivaroxaban Impurity 7(R-isomer)(R)-(-)-?????????181140-34-1C11H9NO3
Rosuvastatin Calcium147098-20-2C22H30CaFN3O6S
Rivastigmine tartrate129101-54-8C18H28N2O8
Sunitinib????557795-19-4C22H27FN4O2
Tacrolimus104987-11-3C44H69NO12
Posaconazole-d5?????171228-49-2C37H42F2N8O4
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