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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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Tiotropium EP Impurity G??????????1508-46-9C9H16BrNO2
Tranexamic Acid?????1197-18-8C8H15NO2
Ursodeoxycholic Acid EP Impurity D2955-27-3C24H40O5
Tetracaine EP Impurity B4740-24-3C11H15NO2
Prilocaine Hydrochloride?????????1786-81-8C13H21ClN2O
Glucosamine sulfate Impurity 13???-2-?????????1003-29-8C5H5NO
Teprenone Impurity 71113-21-9C20H34O
6-Aminocaproic Acid Dimer?????,6-[(6-AMINO-1-OXOHEXYL)???]-2014-58-6C12H24N2O3
L-Ornithine L-Aspartate Impurity 37327-72-2C9H17N3O5
Testosterone EP Impurity D4-????????1156-92-9C19H30O2
Oxacillin Impurity 55053-35-0C19H19N3O4S2
Epalrestat Impurity 21???-3-????5718-83-2C5H5NO3S2
Phloroglucinol Impurity 293,5-???????????2174-64-3C7H8O3
Uridine 5'-Monophosphate Disodium Salt ·X Hydrate????????????3387-36-8C9H14N2NaO9P
Triamcinolone Acetonide EP Impurity F3870-07-3C26H33FO7
Amidosulfonic Acid????5329-14-6H3NO3S
α-Cellulose (powdered)????9004-34-6(C12H20O10)n
Sodium Fluoride????7681-49-4FNa
Haloperidol Impurity 184-???-1-(2-??????)-1-????2823-19-0C10H10ClFO
rac Norphenylephrine Hydrochloride4779-94-6C8H11NO2.ClH
D-Mannosamine hydrochloride5505-63-5C6H14ClNO5
3-Deoxy-galactosone3-???-????4134-97-8C6H10O5
5-(Hydroxymethyl)furan-2-carboxylic Acid5-???????-??-2-?????6338-41-6C6H6O4
2-Hydroxy-2-methylpropiophenone2-?????-2-??-1-??-1-????7473-98-5C10H12O2
Valerophenone1009-14-9C11H14O
Hydroxylamine Hydrochloride?? ??????5470-11-1NH2OH·HCl
Sodium Metabisulfite ????????7681-57-4H2O5S2.2Na
Aristolochic Acid C4849-90-5C16H9NO7
Methyl Thioglycolate???????????2365-48-2C3H6O2S
N-(2-Mercaptoethyl)acetamideN-(2-MERCAPTOETHYL)?????1190-73-4C4H9NOS
Tetra-tert-butyldiphenoquinone3,3',5,5'-???-tert-???????2455-14-3C28H40O2
Sodium Dichloroacetate?? ?????????2156-56-1C2H3Cl2NaO2
1-Tetradecylpyridinium Chloride1-??????????????2785-54-8C19H34ClN
Tipiracil Impurity 71,8-????????[5.4.0]???-76674-22-2C9H16N2
Afatinib Impurity 382106-04-9C6H5ClFN
Vonoprazan Impurity 1545402-20-0C5H5NO3S
Topiroxostat Impurity 481,2-??(4-???????)????4329-75-3C12H10N4O2
Tadalafil Impurity 14??????????????7524-52-9C12H15ClN2O2
Vildagliptin Impurity 185001-18-3C10H16O2
Pramipexole Impurity 14?????-2-???4570-41-6C7H6N2O
Avanafil Impurity 721892-57-5C8H17N3
Sildenafil Impurity 74???????? ?????1643-19-2C16H36BrN
Brexpiprazole Impurity 70??????????????6940-78-9C4H8BrCl
Olaparib Impurity 711-??????????? ????2592-95-2C6H5N3O
Potassium Clavulanate EP Impurity LN,N'-???????????????4013-94-9C8H20N2
Potassium Clavulanate EP Impurity M??(2-????????)???3033-62-3C8H20N2O
Propofol EP Impurity A2,4-????????2934-05-6C12H18O
Propofol EP Impurity J(Propofol Related Compound B)1988-11-0C12H16O2
Sodium Valproate Impurity 152163-48-6C10H18O4
Valproic Acid EP Impurity J2,2-??????????5340-48-7C11H21N
Paracetamol EP Impurity M3.3-???-????1752-24-5C12H11NO2
Leuprorelin EP Impurity C Trifluoroacetic acid54785-87-4C59H84N16O12
DL-2-Aminobutyric AcidDL-2-???????2835-81-6C4H9NO2
Ranaconitine?????1360-76-5C32H44N2O9
9-Methylene-9H-fluorene9-????????4425-82-5C14H10
1,2-Distearoyl-sn-glycero-3-phosphoethanolamine1,2-?????-SN-????-3-????????1069-79-0C41H82NO8P
Sodium glycollate????????, ??? ?2836-32-0C2H3NaO3
Tryptophan EP Impurity H2,3,4,9-???????-1H-??-???-3-????6052-68-2C12H12N2O2
N-Formyl Kynurenine2-???-4-(2-???????)-4-??-???1022-31-7C11H12N2O4
Tryptophan Impurity 245-????-L-?????4350-09-8C11H12N2O3
Tryptophan EP Impurity C2922-83-0C10H12N2O3
5'-Deoxy-5'-Methylthioadenosine????????2457-80-9C11H15N5O3S
Glipizide Impurity 30????????????3173-53-3C7H11NO
Ribavirin EP Impurity C1,2,4-????-3-????4928-87-4C3H3N3O2
Ribavirin EP Impurity D1,2,4-????-3-??????3641-08-5C3H4N4O
Promethazine EP Impurity D7640-51-9C17H20N2OS
Trimethoprim EP Impurity H1916-07-0C11H14O5
Quetiapine Impurity 44N-Des[2-(2-????????)??]?????5747-48-8C17H17N3S
Cefaclor Degradation A Impurity(H-D-Phg-Gly-OH)????????6453-64-1C10H12N2O3
Pregabalin Impurity 49(R)-(+)-??-??????3886-69-9C8H11N
Mesalazine EP Impurity I3147-53-3C13H10N2O3
Lincomycin B?????B2520-24-3C17H32N2O6S
Mianserin Impurity 112-????? ???5344-90-1C7H9NO
Progesterone EP Impurity H1162-56-7C21H28O2
Acetylcysteine Impurity 385545-17-5C10H16N2O6S2
Bifonazole EP Impurity A??-??[1,1'-???]-4-???7598-80-3C19H16O
Clotrimazole Impurity 285162-03-8C13H9ClO
Vancomycin Hydrochloride???? ?????1404-93-9C66H76Cl3N9O24
Fluorouracil Impurity 146623-81-0C5H6N2O3
Lisinopril EP Impurity A1012-05-1C10H13NO2
Paliperidone Impurity 37????????4403-49-0C2H7NO3S
Pentoxifylline Impurity 141-(3-???????)3,7-??????6493-07-8C11H14N4O4
Stavudine(Zidovudine EP Impurity A)3056-17-5C10H12N2O4
Succinyl Monocholine Chloride??????????(125mg)5297-17-6C9H18NO4.Cl
D-α-Tocopherylquinone????7559-04-8C29H50O3
Adefovir Impurity 341538-75-6C10H18O3
Sodium Valproate EP Impurity K2-??-2-??????5343-52-2C8H16O2
Tranexamic Impurity 161642-81-5C8H7ClO2
Tranexamic Acid EP Impurity B??-4-??????????-1-?????1197-17-7C8H15NO2
Trazodone Impurity 126969-71-7C6H5N3O
Trazodone Impurity 8???????H6323-09-7C23H30Cl2N4
Ascorbic Acid EP Impurity D??2-??-L-?????3031-98-9C7H12O7
Butylphthalide Impurity 556066-49-5C12H14O2
Nintedanib Impurity 601912-28-3C3H8O3S
Lumichrome????1086-80-2C12H10N4O2
Methionine Impurity 53226-65-1C5H11NO3S
Pyridoxine Impurity 5n-???????4469-34-5C8H14O2
Pyridoxine EP Impurity A1,3-????-6-????[3,4-c]???-7-????1006-21-9C8H10ClNO2
Dopamine Impurity 243-O-????????1477-68-5C9H13NO2.ClH
Dopamine Impurity 281484-85-1C9H11NO2
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