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Cato Research Chemicals Inc.??? ?? ??? ?????.
?? ?:
Cato Research Chemicals Inc.
??:
020-81960175
???:
3008394369@qq.com
??:
China
URL:
www.cato-chem.com/
? ?? ?:
15374
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?? ????
Progesterone EP Impurity M (17-alpha-Progesterone)
(17α)-???-4-?-3,20-??
2000-66-0
C21H30O2
Metoprolol EP Impurity J
163685-37-8
C18H31NO5
(3S,5R)-Atorvastatin EP Impurity B (single configuration) Calcium salt
887196-25-0
C33H34CaFN2O5+
Rivaroxaban EP Impurity A
5-R-?????
865479-71-6
C19H18ClN3O5S
Pranoprofen Impurity 2
52549-19-6
C15H11NO4
Apixaban Impurity 3 (BMS-778960-01)
2098457-92-0
C26H27N5O4
Dexamethasone EP Impurity F
???????
382-67-2
C22H29FO4
Oseltamivir Impurity 22
Topiroxostat Impurity 2 ( Isoniazid Impurity 5 )
4-??????
100-48-1
C6H4N2
Sodium Picosulfate EP Impurity B
p,p'-(2-??????)????
603-41-8
C18H15NO2
Pregabalin Impurity 53
4-????-2-?????
61312-87-6
C8H15NO
Progesterone EP Impurity A
24377-08-0
C21H28O2
Entecavir EP Impurity D
(1'S,3'S,4'S)-????????
1367369-80-9
C12H15N5O3
Acyclovir EP Impurity C
????????C
91702-61-3
C8H11N5O3
Sertraline EP Impurity B HCl
SertralineEP???B
52758-05-1
C17H20ClN
Diclofenac EP Impurity F
2,6-????-N-(4-?????)-???????
560075-65-2
C14H10Cl3NO
Rivaroxaban EP Impurity B
1429334-00-8
C16H19N3O5
Valaciclovir EP Impurity I(Aciclovir EP Impurity A)
102728-64-3
C10H13N5O4
Metformin EP Impurity A
????? ?????
461-58-5
C2H4N4
Loxoprofen Impurity 66
334948-52-6
C13H18O8
Buspirone EP Impurity A
2-(1-?????)????
20980-22-7
C8H12N4
Tadalafil
171596-29-5
C22H19N3O4
Brexpiprazole Impurity 28
1191900-51-2
C25H27N3O3S
Ursodeoxycholic Acid EP Impurity F
4651-67-6
C24H38O4
1,2-Distearoyl-sn-glycero-3-phosphocholine
????????????????
816-94-4
C44H88NO8P
D-glucono-1,4-lactone
D-????,γ-??
1198-69-2
C6H10O6
Propranolol EP Impurity A
36112-95-5
C13H14O3
Acetylcysteine Impurity 17
N-????????
25779-79-7
C8H14N2O5S2
Paracetamol EP Impurity G
4-[1-(???????)????]?????-2,5-??-1-?
34523-34-7
C8H9NO2
Metronidazole EP Impurity C
??03944768
5006-69-9
C5H7N3O3
Olmesartan Medoxomilum EP Impurity C
879562-26-2
C29H28N6O5
5-(1H-purrole-1-yl)-2-marcapto- benzimidazole
5-(1H-??-1-?)-2-??????????
172152-53-3
C11H9N3S
Levocarnitine EP Impurity C Chloride
?????????
6490-20-6
C7H17ClN2O2
Budesonide EP Impurity I
113930-13-5
C25H34O7
Olopatadine Related compound C
55453-87-7
C16H12O4
Dexamethasone Sodium Phosphate EP Impurity F
Ceftizoxime RC 4
929101-89-3
C13H15N5O5S2
Salbutamol EP Impurity Q
4-HYDROXY-3-(HYDROXYMETHYL)??????
54030-32-9
C8H8O3
Aspirin Impurity 2
4-?????????
636-46-4
C8H6O5
Orlistat Impurity 2
104872-28-8
C29H53NO5
Prilocaine Impurity 6 (Lidocaine Impurity 16)
?????.A(EP):(RS)-2-???-N-(2-????)-??????
39084-88-3
C10H11Cl2NO
Amorolfine EP Impurity A
78613-39-5
C21H35NO2
Memantine Related Compound A
1,3-??????????
702-79-4
C12H20
Progesterone EP Impurity B
4-????-20-??-?-3-?
145-14-2
C21H32O2
Tizanidine Impurity 6
173532-15-5
C11H10ClN5OS
Irinotecan USP Rc E
78287-27-1
C22H20N2O4
Stearic Acid
?????
57-11-4
C18H36O2
Levalbuterol HCl
50293-90-8
C13H22ClNO3
Metronidazole EP Impurity G
1010-93-1
C6H7N3O4
Guaifenesin EP Impurity B
2-(2-??????)???-1,3-??
14007-09-1
C10H14O4
Δ2-Cefcapene Pivoxil
C23H29N5O8S2
Metoprolol EP Impurity D
3-[4-(2-?????)???]-
62572-90-1
C12H18O4
Calcitriol EP Impurity C(Mixture of Diastereomers)
??????PTAD???
86307-44-0
C35H49N3O5
Nicorandil EP Impurity A
p-????
65141-47-1
C8H9N3O4
Febuxostat Impurity 16
Febuxostat???14
1335202-60-2
C15H16N2OS
Ceftazidime EP Impurity A
CEFTAZIDIME???A
1000980-60-8
C22H22N6O7S2
Amphotericin B EP Impurity C
136135-61-0
Furosemide EP Impurity B
2,4-????-5-??????? ?
2736-23-4
C7H5Cl2NO4S
Folic Acid EP Impurity G Sulfate
Carbocisteine Impurity 4(Mixture of diastereomers)
???????????
5439-87-2
C5H9NO5S
Diclofenac EP Impurity E
59-48-3
C8H7NO
Olopatadine Impurity 1
α-?????????
1331668-21-3
C21H24ClNO4
Cefixime EP Impurity E
72701-01-0
C15H15N5O7S2
Dydrogesterone EP Impurity A
23035-53-2
C21H26O2
Mometasone Furoate EP Impurity C
1305334-31-9
C27H29ClO6
Methotrexate EP Impurity H
???????γ-??????
67022-39-3
C21H24N8O5
Cetirizine EP Impurity A
303-26-4
C17H19ClN2
Entecavir EP Impurity A
1367369-78-5
C12H15N5O3
Ampicillin EP Impurity M
114977-84-3
C48H57N9O12S3
Sodium Valproate EP Impurity C
62391-99-5
C8H16O2
Baloxavir Impurity 11
1985607-69-9
C22H23N3O6
Levodopa EP Impurity C
7636-26-2
C10H13NO4
(R)-Carbidopa
28875-92-5
C10H14N2O4
Amikacin EP Impurity F
1,6'-Di-HABA?????A
197909-67-4
C26H50N6O15
Avibactam Sodium Salt
1192491-61-4
C7H12N3NaO6S
Moxifloxacin EP Impurity G (HCl)
1394029-14-1
C21H24FN3O4
Bisoprolol Impurity 14
177034-57-0
C12H18O3
Baloxavir Impurity 16
Naproxen EP Impurity L
3900-45-6
C13H12O2
Metoclopramide EP Impurity G
????????N-???
171367-22-9
C14H22ClN3O3
Clarithromycin EP Impurity F
ClarithroMycinEP???F
128940-83-0
C39H71NO13
Ondansetron EP Impurity G
?????HCl???-G
99614-03-6
C17H17N3O
Paracetamol EP Impurity C
3-???-4-???????????
3964-54-3
C8H8ClNO2
Levocarnitine EP Impurity A
144205-67-4
C7H14ClNO2
Choline Fenofibrate EP Impurity B
42017-89-0
C17H15ClO4
Choline Fenofibrate EP Impurity A
42019-78-3
C13H9ClO2
Lansoprazole EP Impurity E
2-???? ??????
583-39-1
C7H6N2S
Piracetam EP Impurity C
??2-??????-1-?????
61516-73-2
C8H13NO3
Ruxolitinib Impurity 1
2606144-44-7
C16H18N6O2
Clenbuterol EP impurity B
1-(4-???-3,5-????-??)-2-tert-?????-??????
37845-71-9
C12H17Cl3N2O
Ilaprazole Impurity 34
2285351-50-8
C19H19N4O+
Phenylephrine Impurity 14
(S)-????????
939-38-8
C9H14ClNO2
Acetaminophen EP Impurity H
2623-33-8
C10H11NO3
Clarithromycin EP Impurity A
124412-58-4
C38H69NO14
Stanolone-d4
????
521-18-6
C19H30O2
1R 3S 4R-Ent-Entecavir
188399-46-4
C12H15N5O3
Ampicillin EP Impurity D
32746-94-4
C16H21N3O5S
Flurbiprofen EP Impurity B (Mixture of Diastereomers)
1797883-74-9
C18H17FO4
Furosemide EP Impurity F
4793-38-8
C12H15ClN2O5S
Dapagliflozin Impurity 2
2271248-78-1
C21H25ClO6
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