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Cato Research Chemicals Inc.??? ?? ??? ?????.
?? ?:
Cato Research Chemicals Inc.
??:
020-81960175
???:
3008394369@qq.com
??:
China
URL:
www.cato-chem.com/
? ?? ?:
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?? ????
Ornidazole Impurity 67
Pemetrexed Impurity 22
4,6-????-1H-1,3,5-????-2-?
1075-59-8
C5H7N3O3
Indobufen Impurity 54
38896-06-9
C11H15NO2
Rosuvastatin (6S)&(6R)-Isomer Mixture Calcium Salt
Lurasidone Impurity 35
1373868-14-4
C28H34N4O3S
Amlodipine Impurity N12
1-???-2-(??????)??
88-66-4
C7H5Cl3
Alanine Glutamate
?????????
13187-90-1
C8H14N2O5
Etomidate EP impurity BHCI
?????????
35944-74-2
C13H14N2O2.ClH
Cefditoren Impurity 18
Fluconazole Impurity 35
173837-65-5
C9H10F2O3
Dronedarone Impurity 55
4-?????? ?????
100-07-2
C8H7ClO2
Desmopressin EP Impurity C TFA salt
Vortioxetine Impurity 30
615-36-1
C6H6BrN
Obeticholic Acid Impurity 1
6??-??-???????
865244-30-0
C26H44O4
Ciprofloxacin EP Impurity E(HCl)
????????????
105394-83-0
C16H18FN3O
Caspofungin Impurity E HAc
Lidocaine Impurity 31
70336-49-1
C20H22N2O2
Butylphthalide Impurity 69
879627-88-0
C8H4Br2O2
Sodium Valproate Impurity 19
616-62-6
C6H10O4
Granisetron Impurity 11(Mixture of Z and E Isomers)
123704-98-3
C10H11N3O3
Zoledronic Acid EP Impurity B
2043362-88-3
C7H17ClN2O14P4
Alendronate Acid
66376-36-1
C4H13NO7P2
Gadobutrol Impurity 106
170454-90-7
C10H22N4O2
Ribofuranose
??????(7CI,8CI,9CI)
15761-67-8
C5H10O5
5-Methyl-4-nitropyridin-2(1H)-one
1416354-34-1
C6H6N2O3
Hydantoin Impurity 2
49540-21-8
C5H11NO2S
Ritonavir EP Impurity P
2804644-96-8
C47H52N6O7S2
Isavuconazole Impurity 36
??????-1-?????????
50893-53-3
C3H4Cl2O2
Droperidol EP Impurity E
1346604-17-8
C34H34N6O3
Etoposide EP Impurity L
4'-?????????
40505-27-9
C21H20O8
Galantamine hydrobromide
1953-04-4
C17H22BrNO3
Cefepime
88040-23-7
C19H24N6O5S2
Raloxifene Impurity 4
??????????1
1191901-07-1
C17H22N2O2S
Naproxen EP Impurity D
(S)-5-???-6-???-α-??-2-????????
116883-62-6
C14H13IO3
Empagliflozin Impurity 173
3-???-4'-????????97
46698-24-2
C13H8BrFO
Galantamine EP Impurity A (Galantaminone)
510-77-0
C17H19NO3
Brexpiprazole Impurity 18
4-???-??[b]???
66490-33-3
C8H5ClS
2-(5-Fluoro-2-methyl-3-indenyl)acetic Acid
32004-66-3
C12H11FO2
Loperamide EP Impurity F
106900-12-3
C29H33ClN2O3
Calcitonin EP Impurity B
Mebendazole Impurity D
1-??????
132119-11-0
C17H15N3O3
LoxLoxoprofen Impurity 63
2172861-70-8
C10H11BrO2
2,3-Epoxide Vitamin K1 (Mixture of Diastereomers)
1588773-08-3
C31H46O3
Edoxaban N-Oxide Monomer Impurity 2
1974272-84-8
C24H30ClN7O5S
Fudosteine Impurity 35
Cefprozil EP Impurity F
107937-01-9
C10H12N2O3S
Nabumetone Impurity 18
2-??-6-???????
701270-26-0
C15H18O
Dienogest EP Impurity K
11β-?????????????
106111-43-7
C20H25NO4
Etoposide EP Impurity K
Picosulfate Impurity 15
16985-07-2
C18H15NO2
Levodropropizine EP Impurity A (Dextrodropropizine)
99291-24-4
C13H20N2O2
Apixaban Impurity 44
536759-91-8
C22H20N4O6
3-Hydroxy-2,2-dimethylpropyl 4-methylbenzenesulfonate
21651-04-7
C12H18O4S
H-Thr(tBu)-OH
4378-13-6
C8H17NO3
Ilaprazole Impurity 21 (cis- and trans- mixture)
2,5-????????????
696-59-3
C6H12O3
Tolvaptan Impurity 39
M-???? ???
1711-06-4
C8H7ClO
Telmisartan Impurity 21
4'-(?????)???-2-??????
147404-72-6
C14H12BrNO
Bromisoval
????? ??
496-67-3
C6H11BrN2O2
H-Tyr(tBu)-OH
18822-59-8
C13H19NO3
Mirabegron Impurity 21
19008-62-9
C8H11ClN2O2
Cinacalcet Impurity 8
1517-72-2
C12H12O
Triamcinolone Acetonide EP Impurity A
???????
124-94-7
C21H27FO6
Etoposide EP Impurity A
124151-67-3
C37H38O15
Gemcitabine Impurity 28
134790-40-2
C23H19F2N3O6
Budesonide Impurity N2
39672-76-9
C21H26O5
Gentamicin EP Impurity E(Hydrobromate)
84107-26-6
C6H15BrN2O3
Isavuconazole Related Compoun 1
(αS,βR)-β-(2,5-???????)-β-????-α-??-1H-1,2,4-????-1-?????
241479-74-3
C13H12F2N4O
Rupatadine impurity 18
1422960-88-0
C33H34ClN4+
Etoposide EP Impurity I
111712-42-6
C30H34O13
Lysine Impurity 25
121893-23-0
C13H18N2O4
Troxerutin Impurity 1
???(???????)?????
6980-20-7
C35H46O20
Varenicline Tartrate
375815-87-5
C17H19N3O6
Rebamipide Impurity 10
23974-11-0
C10H7Br2NO
Moxifloxacin EP Impurity B
1029364-73-5
C22H27N3O5
Paclitaxel Impurity N3
163594-75-0
C20H32
Vericiguat Impurity 8
2719924-23-7
Abemaciclib Impurity 23
22462-34-6
C4H2ClFN2O
5-Aminonicotinic acid
24242-19-1
C6H6N2O2
4-Aminonicotinic acid
7418-65-7
C6H6N2O2
Phloroglucinol impurity 47
??????????????
621-23-8
C9H12O3
Dienogest EP Impurity A
11β-???????????
86153-39-1
C20H25NO3
Dienogest EP Impurity C
106111-42-6
C20H25NO2
Carbamazepine Impurity 11
33948-20-8
C15H11BrClNO
Verapamil EP Impurity M HCl (Mixture of Diastereomers)
?????????D(50MG)(5,5'-[[2-(3,4)DIMETHOXYPENYL)??]???]BIS[2-(3,4-DIMETHOXYPENYL)-2-(1-METHYLETHYL)PENTANENI-TRILE]???)
190850-50-1
C42H58ClN3O6
Phenylbutyrate EP Impurity B
529-34-0
C10H10O
Dienogest EP Impurity H
16669-06-0
C20H25NO2
Upadacitinib Impurity 53
1046861-47-5
C6H6F3N3O
Dotinurad Impurity 10
1285573-42-3
C15H11Cl2NO2S
Finerenone Impurity 22
1260883-35-9
C6H8N2O
Abemaciclib Impurity 21
1178566-47-6
C10H16N4
Pimecrolimus Impurity 12
Mometasone Furoate EP Impurity I
C32H32Cl2O8
Cefdinir Impurity 48
2241729-58-6
25-Hydroxy Cholesterol
25-??????????
2140-46-7
C27H46O2
Etoposide EP Impurity F
Edoxaban N-Oxide Monomer Impurity 1
1974272-82-6
C24H30ClN7O5S
Indapamide Impurity 25
5-?????????
126750-70-7
C16H16ClN3O4S
Caspofungin EP Impurity B(RRT=1.50)
314080-31-4
C50H82N8O16
Ketorolac Impurity 37
4-?????????
111930-01-9
C15H13NO4
4-Hydroxyphenylacetaldehyde, approximately >15% by weight in Ethyl Acetate
2-(4-???????)??????
7339-87-9
C8H8O2
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