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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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Buspirone-D8????(D8)204395-49-3C21H23D8N5O2
Tryptophan impurity 312-(1H-??-3-?)???????2591-98-2C10H9NO
Benzylpenicillin Potassium EP impurity E11039-68-2C16H20N2O5S
Bupivacaine Impurity 27 HCL
Pantoprazole EP Impurity DN-???????,1?3????????624742-53-6C17H17F2N3O4S
Pioglitazone EP Impurity Da-[(???????)??]-4-[2-(5-??-2-????)???]????????????868754-41-0C21H26N2O4S
N-Despropyl Propafenone HCl1188263-52-6C18H22ClNO3
Isavuconazole Impurity 612-(2-??????)?????683274-86-4C9H6BrNO
Cefadoxil EP Impurity C147103-96-6C16H19N3O6S
Norfloxacin EP Impurity K(Hydrochloride)74011-48-6C15H17ClFN3O3
3-Aminophthalic acid hydrochloride dihydrate1852533-96-0C8H10ClNO5
Quetiapine impurity 6473486-81-4C8H17N3O3
Picosulfate Impurity 82379878-05-2C18H16NNaO9S2
Phenylephrine 4,6-DMTQ Impurity(Peak-1)1,2,3,4-??????-4,6-?????-2-??-?????23824-24-0C10H13NO2
Hydroxy Pioglitazone M-IV???????????146062-44-4C19H20N2O4S
Zoledronic Acid EP Impurity B1632236-60-2C7H17N2O14P4+
Tacrolimus Hydroxy Acid Impurity1700657-83-5C44H71NO13
Faropenem Impurity 4776899-07-5
Ubidecarenone Impurity 3????-1124663-35-2C64H98O4
Atropine Impurity 3735721-90-5C17H23NO3
Budesonide Impurity 2951372-28-2C25H34O6
Triamcinolone Acetonide Impurity 36159210-07-8C20H25FO6
N-Nitroso-Sertraline3006789-98-3C17H16Cl2N2O
Dorzolamide EP Impurity A4R,6R-??????120279-95-0C10H16N2O4S3
Diltiazem USP related compound H HCl
Ursodeoxycholic acid impurity 26859-97-2C24H36O4
Ziprasidone Impurity 30??????????188797-80-0C21H21ClN4O2S
Isavuconazole-d4??????-d41346598-58-0C22H17F2N5OS
Flurbiprofen Impurity 2664858-90-8C17H17FO2
Gemcitabine Impurity 222-???-2,2-?????-D-???-???γ-??95058-77-8C5H6F2O4
Isavuconazole Impurity 78(αR,βR)-β-(2,5-???????)-β-????-α-??-1H-1,2,4-????-1-???483340-19-8C13H13F2N3O3
Loxoprofen-d4
Domperidone Impurity 2362780-89-6C10H11ClN2O
Norepinephrine Impurity 6035538-87-5C8H11NO6S
Telmisartan Impurity 12114772-38-2C15H13BrO2
Roxatidine Impurity 572-???????615-18-9C7H4ClNO
Medroxyprogesterone Acetate EP Impurity A6β-???????????????17-?????984-47-4C24H34O5
Deferasirox EP Impurity D2254105-61-6C21H15N3O4
Idarubicin Impurity 884499-12-7C20H12O5
Furosemide Impurity 3074793-12-7C12H10ClNO3
Cefaclor Impurity 24142975-51-7C30H26Cl2N6O7S2
Lincomycin sulfone Impurity198080-68-1C18H34N2O8S
N-Nitroso Metoprolol138768-62-4C15H24N2O4
Valaciclovir EP Impurity J??????L-???????142963-63-1C14H22N6O4
Valaciclovir EP Impurity P(Valaciclovir Related Compound K)?????????1356019-51-6C27H40N12O8
Betamethasone EP Impurity J18383-24-9C22H30O4
Flomoxef Impurity 222-(5-???????-1-?)???56610-81-2C3H6N4OS
Spironolactone EP Impurity G880106-10-5C24H32O5S
Decarboxy Gatifloxacin1029364-59-7C18H22FN3O2
Mivacurium Chloride Impurity 7 (S-S isomer)104758-51-2C58H80ClN2O14+
Duloxetine EP Impurity F HCl2748376-86-3C18H20ClNOS
Taurodeoxycholic Acid516-50-7C26H45NO6S
Nifedipine Impurity 2573372-63-1C16H14N2O6
Picosulfate impurity 221578259-67-2C33H46N4O6
Isavuconazole Impurity 662,5-?????????????258513-41-6C8H5BrF2O
Tebipenem161715-21-5C16H21N3O4S2
Lincomycin EP Impurity D Hydrochloride(7-epi Lincomycin Hydrochloride)7-??????????26389-84-4C18H35ClN2O6S
Avibactam Impurity 89??(2S,5R)-5-[(????)???]????-2-??????????????1171080-45-7C22H26N2O7
Spironolactone EP Impurity H53866-24-3C20H26O2
Cefaclor Impurity 3721746-02-1C10H10N2O2
Pregabalin Impurity 85466678-44-4C20H35NO11
Dexmedetomidine Impurity 6886347-44-6C13H16N2
Levofolinate EP Impurity H Calcium salt73951-54-9C20H23N7O7
Triamcinolone Impurity 103800-28-0C23H29FO6
Temozolomide Impurity 14????????100-34-5C6H5ClN2
Avibactam Impurity 33（2R,5R）Oxalate2085372-14-9C17H24N2O7
Atropine EP Impurity B?????16839-98-8C16H21NO3
Flurbiprofen Impurity 69
Ampicillin Impurity 226α-[(1-????)???]?????4493-18-9C14H22N2O4S
Nimodipine Impurity 133-???-2-???21112-45-8C4H7NO2
Rivastigmine EP Impurity FS-(-)-[1-(3-?????)??]-N,N-?????889443-69-0C11H17NO
Quetiapine EP Impurity OO-????????????844639-06-1C40H39N3O2S
6-Cyano-2-naphthol52927-22-7C11H7NO
Roxithromycin Impurity 191460313-73-8C41H76N2O16
Rifaximin EP Impurity C14897-39-3C37H48NNaO12
(2R,3S)-Isavuconazole Impurity 251797905-83-9C22H17F2N5OS
(5Z)-Pioglitazone EP Impurity B136401-69-9C19H18N2O3S
N-Nitroso Venlafaxine EP Impurity D2680662-11-5C16H24N2O3
Ziprasidone EP Impurity E3-(1,2-Benzisothiazolyl)?????(????????E)1159977-04-4C28H24ClN5OS2
RivastigmineImpurity 13???????????B(15mg)((R,S)-3-[1-(??????)??]???????????)25081-93-0C13H20N2O2
Dapoxetine Impurity 60????N-????1346603-24-4C21H23NO2
Mivacurium Chloride Impurity 8 (R-R isomer)107740-65-8C58H80ClN2O14+
Telmisartan Impurity 214'-(?????)???-2-??????147404-72-6C14H12BrNO
Valaciclovir EP Impurity H(hydrochloride)9-[[2-(α-L-?????)???]??]??????84499-63-8C11H17ClN6O4
Quetiapine EP Impurity F848814-27-7C21H27N3O3S
2,6-difluoronitrobenzene19064-24-5C6H3F2NO2
Raltitrexed Impurity 81235852-48-8C11H13N3O
Dexmedetomidine Impurity 57????????617-86-7C6H16Si
Azacitidine Impurity 772508-81-8C6H9NO5
Perindopril EP Impurity K2165676-00-4C12H18N2O2
Mivacurium Chloride Impurity 6 (R-S isomer)107740-63-6C58H80ClN2O14+
Sertraline EP Impurity A HCl (rac-trans-Sertraline HCl)4-(3,4-??????)-1,2,3,4-??????-N-??-1-?????????79617-99-5C17H18Cl3N
Gentamicin Impurity 13???49751-51-1C13H27N3O6
Medroxyprogesterone Acetate EP Impurity C1076198-22-5C25H24ClN5O5S
Rilpivirine Impurity 1 HCl
Valaciclovir EP Impurity D1346747-69-0C15H24N6O4
Ziprasidone Impurity 10118305-72-9C21H22N4OS
Famotidine EP Impurity H106649-96-1C6H10N6S2
Hydrocortisone Impurity 32103242-89-3C25H34O8
Piracetam Impurity 13?????????105-39-5C4H7ClO2
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