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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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Mebeverine Impurity 1???????93-07-2C9H10O4
Fluorouracil Impurity 15??????67-52-7C4H4N2O3
2-Oxetanone??-??????57-57-8C3H4O2
Propofol EP Impurity H4-???????99-89-8C9H12O
7-(dimethylamino)-9,9-dimethyl-9H-fluorene-2-carbaldehyde1627118-52-8C18H19NO
Perampanel Impurity 3380919-34-6C23H17N3O2
Bumetanide Impurity N128469-01-4C21H28N2O5S
Pyruvic aldehyde, 35-45% w/w aq. Soln?? ????78-98-8C3H4O2
Pilocarpine HCl54-71-7C11H17ClN2O2
1,3,5-Triazine, 2-(9,9'-spirobi[9H-fluoren]-2-yl)-4,6-bis([1,1':3',1''-terphenyl]-5'-yl)1233200-52-6C64H41N3
Levodopa EP Impurity BL-(-)-???60-18-4C9H11NO3
Rivaroxaban Impurity 139?????85-41-6C8H5NO2
4''-Ethyl-2',4-difluoro-1,1':4',1''-terphenyl132054-44-5C20H16F2
2,9,9-Triphenyl-9H-fluorene1158844-76-8C31H22
Dibenzothiophene, 4-phenyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1556069-50-1C24H23BO2S
Verapamil EP Impurity C3490-05-9C12H19NO2
Verapamil Impurity 262-???-1-????78-89-7C3H7ClO
Triethyl Phosphate???????78-40-0C6H15O4P
1,1'-(2,5-dibromo-1,4-phenylene)bis[1-(1-piperidinyl)-methanone)1050611-59-0C18H22Br2N2O2
4-Bromophenyldiphenylamine1160294-93-9
Thiamine /Vitamin B1 Impurity 2073-67-6C6H9N3O
Leuprorelin EP Impurity C Acetate
Promethazine EP Impurity A?????92-84-2C12H9NS
Tenofovir Alafenamide Impurity 1??????????1342631-41-8C21H22N5O4P
Azilsartan Impurity 921417576-01-2C32H28N4O8
Perampanel Impurity 5380918-54-7C23H15N3O
N,N-DimethylformamideN,N-?????????68-12-2C3H7NO
Acetylcysteine Impurity 40N-????????25779-79-7C8H14N2O5S2
Phenytoin????57-41-0C15H12N2O2
L-Aspartic AcidL-????? ?56-84-8C4H7NO4
Voriconazole Impurity 50????? ???79-03-8C3H5ClO
Quetiapine EP Impurity E1371638-05-9C40H44N6O2S2
Pyridoxal Hydrochloride???? ?????????65-22-5C8H10ClNO3
Pregabalin EP Impurity C(Glycopyrronium Bromide EP Impurity C)????90-64-2C8H8O3
Zidovudine EP Impurity D???????76-84-6C19H16O
Moxifloxacin Impurity 19
Pyrazinamide Impurity 3????????98-97-5C5H4N2O2
Streptomycin???????57-92-1C21H39N7O12
Chlorzoxazone Impurity 22(3H)-??????59-49-4C7H5NO2
Ascorbic Acid EP Impurity F????????89-65-6C6H8O6
Sodium taurine gossypol1360200-41-4
Lidocaine Hydrochloride???? ?????73-78-9C14H23ClN2O
propionic acid?????79-09-4C3H6O2
3,4-Dimethoxyphenyl acetic acid(3,4-??????)????93-40-3C10H12O4
Progesterone??????57-83-0C21H30O2
4-(4-Phenyl-1-piperazinyl)-1,3-benzenediamine1358071-65-4C16H20N4
7,7-Dimethyl-7H-fluoreno[4,3-b]benzofuran1374677-48-1C21H16O
Cholesterol Impurity 14??-?????83-46-5C29H50O
3-bromo-9-(dibenzo[b,d]furan-3-yl)-9H-carbazole1613325-84-0C24H14BrNO
Sodium Fusidate EP Impurity E2802408-15-5C31H47NaO6
9-chloro-7,7-dimethyl-7H-fluoreno[4,3-b]benzofuran1374677-42-5C21 H15 Cl O
5,5'-((3,3',5,5'-tetramethyl-[1,1'-biphenyl]-4,4'-diyl)bis(oxy))bis(isobenzofuran-1,3-dione)150314-47-9C32H22O8
Stearic Acid?????57-11-4C18H36O2
D-Alfa-Tocopherol Acetate?? ????58-95-7C31H52O3
N,N'-Bis(naphthalen-1-yl)-N,N'-bis(phenyl)-2,7-diamino-9,9-dimethyl-fluoreneDMFL-NPB,N,N'-??(????-1-?)-N,N'-??(??)-1229226-27-0C47H36N2
3-Mercapto-1,2-propanediol1-??????96-27-5C3H8O2S
D-Tagatose87-81-0C6H12O6
Benzenamine,4-benzo[b]thien-2-yl-N-(4-benzo[b]thien-2-ylphenyl)-1426435-71-3C28H19NS2
Phenylephrine Impurity 46??????54-06-8C9H9NO3
Phloroglucinol Impurity 9????87-66-1C6H6O3
1,2-Dipalmitoyl-sn-glycero-3-phosphocholine63-89-8C40H80NO8P
Glucosamine EP Impurity E5-???????-2-???????67-47-0C6H6O3
L-CystineL-(-)-???56-89-3C6H12N2O4S2
Tetracaine Impurity 5??4-(?????)?????94-32-6C13H19NO2
Phloroglucinol Impurity 102,6-??????87-65-0C6H4Cl2O
Perphenazine?????58-39-9C21H26ClN3OS
Mesalazine EP Impurity D3-??????99-05-8C7H7NO2
Valproic Acid????99-66-1C8H16O2
Aniline (Mesalazine EP Impurity K)???62-53-3C6H7N
5-aMino-2-hydroxy-Benzaldehyde58186-71-3C7H7NO2
3,5-Difluoro-4'-pentyl-1,1'-biphenyl137528-89-3C17H18F2
4-Chloro-3-nitrobenzoic Acid4-???-3-??? ????96-99-1C7H4ClNO4
Acetylcysteine Impurity 35L-????52-90-4C3H7NO2S
4,7-Dibromo-2,1,3-benzothiadiazole4,7-????-2,1,3-???????15155-41-6C6H2Br2N2S
8-chlorofluoranthene145730-31-0C16H9Cl
L-(+)-Ascorbic Acid??? C50-81-7C6H8O6
Cytidine???65-46-3C9H13N3O5
Furosemide Impurity 28??? ???98-00-0C5H6O2
N-(2,6-dimethylphenyl)piperidine-3-carboxamide337488-90-1C14H20N2O
Methyl Benzoate??????93-58-3C8H8O2
6-Methyl-1-aza-9H-carbazole6-??-1-??-9H-???108349-67-3C12H10N2
Tenofovir alafenamide Impurity 67??????????4851456-00-3C15H25N6O5P
Mesalazine EP Impurity C2-?????95-55-6C6H7NO
L(-)-Epinephrine?????51-43-4C9H13NO3
Ursodeoxycholic Acid EP Impurity E83-44-3C24H40O4
Lidocaine EP Impurity A2,6-???????87-62-7C8H11N
Ebastine Impurity 10?????91-01-0C13H12O
Dexmedetomidine Impurity 553,4-????95-64-7C8H11N
Benzo[1,2-b:4,5-b']dithiophene-4,8-diyl bis(trifluoromethanesulfonate)1620482-22-5C12H4F6O6S4
Indapamide Impurity 40N-?????????55-18-5C4H10N2O
Tryptophan EP Impurity F(N-Acetyltryptophan EP Impurity F) HCl
D-Cycloserine68-41-7C3H6N2O2
Travoprost Impurity 55??????75-03-6C2H5I
Glucosamine Impurity 9????98-01-1C5H4O2
Carglumic Acid Impurity 3L-????? ?98-79-3C5H7NO3
Mesalazine EP Impurity R85-38-1C7H5NO5
Amlodipine Impurity 65o-?????????89-98-5C7H5ClO
4-Ethyl-2,3-difluoro-1,1'-biphenyl1448511-53-2C14H12F2
Chlortetracycline hydrochloride64-72-2C22H24Cl2N2O8
Dimethyl Sulfate???????77-78-1C2H6O4S
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