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Cato Research Chemicals Inc.??? ?? ??? ?????.
?? ?:
Cato Research Chemicals Inc.
??:
020-81960175
???:
3001970523@qq.com
??:
China
URL:
www.catorm.com/
? ?? ?:
17709
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?? ????
Lisinopril EP Impurity D
?????R,S,S-???????
219677-82-4
C21H29N3O4
Formoterol Fumarate Dihydrate
183814-30-4
C23H28N2O8
Bromocriptine EP Impurity E
2492-53-7
C16H16BrN3O
Beclometasone dipropionate EP Impurity S
1709825-83-1
C31H41ClO8
Bromfenac Impurity 33
1644279-16-2
C30H18Br2N2O3
Vonoprazan Impurity 43
2169271-28-5
C16H13FN2O3S
Pirfenidone EP Impurity A
1603-41-4
C6H8N2
D-Serine
312-84-5
C3H7NO3
Methyl (R)-2-(8-fluoro-3-(2-methoxy-5-(trifluoromethyl)phenyl)-2-(4-(3-methoxyphenyl)piperazin-1-yl)-3,4-dihydroquinazolin-4-yl)acetate
917389-34-5
C30H30F4N4O4
Empagliflozin impurity 181
??5-???-2-????????
251085-87-7
C8H6BrClO2
Ampicillin Impurity 61(Mixture of Diastereoisomer)
Rifamycin S
13553-79-2
C37H45NO12
Levetiracetam EP Impurity B
358629-47-7
C8H12N2O2
2-Amino-6-(chloromethyl)-4(3H)-pteridinone
873397-19-4
C7H6ClN5O
Beclomethasone dipropionate EP Impurity E
887130-68-9
C28H36Cl2O7
Tizanidine Impurity 7
1-???-2-???????
5391-39-9
C5H8N2O2
Oseltamivir Impurity 151
651324-06-0
C24H42N2O3
Ketoprofen Impurity 60
1777830-05-3
C20H23NO5
Chloroxylenol
??????
1321-23-9
C8H9ClO
Avanafil Impurity 69
5909-24-0
C8H9ClN2O2S
Glycopyrrolate USP Related Compound B HCl
1-??-3-(a-????????????)???????
13118-10-0
Celecoxib Impurity 8
Celecoxib2-??????
170569-99-0
C17H14F3N3O2S
Bempedoic Acid Intermediate Impurity 14
413624-71-2
C19H34O5
METHACHOLINE CHLORIDE
62-51-1
C8H18ClNO2
N-(5-Formyl-2-hydroxyphenyl)formamide
903563-43-9
C8H7NO3
Alogliptin Impurity 5
2089611-85-6
C18H21N5O2
Teprenone Impurity 1
Benserazide Impurity 4 Oxalic acid Salt
2,3,4-????????????,?????
3614-72-0
C7H10N2O3
Atropine Impurity 19
14510-37-3
C11H11ClO3
Leflunomide EP Impurity C
??????3-???
61643-23-0
C12H9F3N2O2
Calcifediol Impurity 13
22145-68-2
C27H44O2
Thioctic acid Impurity 1
6,8-?????????
462-20-4
C8H16O2S2
Avanafil Impurity 1
1638497-26-3
C23H26ClN7O3
Urapidil Impurity 30
???(2-?????)?? ?????????
817-09-4
C6H13Cl4N
Levodropropizine N-Oxide Impurity 4
2098198-51-5
C13H20N2O4
Biotin impurity 18
4375-00-2
C10H16N2O3S
Testosterone EP Impurity B
3-???-?????-3,5-??-17-?
972-46-3
C21H30O2
Geranylgeranio
??????
24034-73-9
C20H34O
Teprenone Impurity 24
70901-63-2
C20H32
Etoposide EP Impurity P
117669-31-5
C21H16O8
2-Hydroxy Ipratropium Bromide
Loxoprofen Impurity 18
99807-54-2
C11H13BrO2
Celecoxib Impurity 18
2247197-67-5
C19H17F3N2O3S
Troxerutin Impurity 7
862127-01-3
C31H38O18
Brexpiprazole Impurity 75
C13H14N2OS
Tedizolid Impurity 85
150-97-0
C6H12O4
Pregabalin Impurity 12
4-????,3-(?????)-5-??-
216576-74-8
C8H15NO2
Prednisolone EP Impurity G
20α-???????????
2299-46-9
C21H30O5
Crizotinib Impurity 3
877399-00-3
C13H10BrCl2FN2O
Ixazomib
1072833-77-2
C14H19BCl2N2O4
Mupirocin EP Impurity C Sodium Salt
????D???
85178-60-5
C26H41NaO9
Paliperidone Impurity 48
181525-38-2
C11H12N2O3
Teneligliptin Impurity 13
1404559-17-6
C22H30N6OS
Afatinib Impurity 19
2223677-58-3
C22H20ClFN4O4
Icotinib-d4
1567366-82-8
C22H21N3O4
Oseltamivir Impurity 148
2417645-75-9
C18H31NO3
Urapidil Impurity 34
62845-30-1
C20H29N5O4
1985606-48-1
C26H21F2N3O6S
Ezetimibe Impurity 42
189028-95-3
C20H20FNO4
Mirtazapine EP Impurity C
1-OxoMirtazapine(????????C)
191546-96-0
C17H17N3O
Nintedanib
656247-17-5
C31H33N5O4
Nabumetone Impurity 2
4-(2-???????-6-?)??-2-?
65726-24-1
C15H18O2
Levonorgestrel EP Impurity N
???????????N
4222-96-2
C19H26O2
Dapoxetine Impurity 60
????N-????
1346603-24-4
C21H23NO2
Vonoprazan Fumarate Impurity 7
1240948-72-4
C11H6ClFN2
Glycopyrrolate Bromide
596-51-0
C19H28BrNO3-
Propranolol Impurity 16
2-((2-?????)??)-???
5234-06-0
C13H12O2
(1R,3S)-Benazepril Hydrochloride
86541-77-7
C24H28N2O5HCl
Nemonoxacin Malate - API Standards
951163-60-3
C20H25N3O4.C4H6O5
Linaclotide
???????
851199-59-2
C59H79N15O21S6
Fingolimod EP Impurity B (Fingolimod Heptyl Impurity)
745767-97-9
C18H31NO2
Oseltamivir Impurity 152
651324-04-8
C18H33NO4
Nicergoline EP Impurity B
35264-46-1
C23H24BrN3O3
Valproic Acid USP Related Compound A
2-??-4-?????
99-67-2
C8H12O2
Crizotinib 2-Keto Impurity
1415558-82-5
C21H20Cl2FN5O2
Vildagliptin Impurity 5
1789703-37-2
C17H25N3O2
Teprenone Impurity 25
3,7,11,15-?????-1,6,10,14-????????-3-OL
68931-30-6
C20H34O
Alverine EP Impurity B
????? ???
122-97-4
C9H12O
Cinacalcet Impurity 50
???
941-98-0
C12H10O
3,7-Dimethyluric acid
3,7-???-2,6,8-????????
13087-49-5
C7H8N4O3
Salbutamol EP Impurity G
64092-10-0
C20H25NO3
Nemonoxacin Impurity 4
4-Methyl-4-(methyldisulfanyl)pentanoic acid
796073-55-7
C7H14O2S2
Lornoxicam Impurity 7
5-???-3-??-2-????????
187746-94-7
C5H3ClO5S2
Baloxavir Impurity 32
17-Biphenylestradiol
1643577-75-6
C30H32O2
Fosfomycin Impurity 50
53621-85-5
C3H9O4P
O-Desmethyl Adapalene
125316-60-1
C27H26O3
N-(2-Bromophenyl)nitrosamide
876497-67-5
C6H5BrN2O
Levocarnitine Impurity N29
101396-91-2
C6H15Cl2NO
Rivastigmine Hydrogen Tartrate EP Impurity E HCl
Propofol Impurity 29
84633-54-5
C56H84O10
Beclomethasone dipropionate EP Impurity Q
Valganciclovir Impurity 15
36504-72-0
C19H23N3O2
Letermovir Impurity 10
Indometacin Impurity 21
1H-??-3-????,1-(4-??????)-5-???-2-??-,2,3-????????????
71848-87-8
Sorafenib Impurity 9(Di(chlorotrifluoromethyl)phenylurea)
?????
370-50-3
C15H8Cl2F6N2O
Teneligliptin (2R,4S)-Isomer
Levofolinate EP Impurity H Calcium salt
73951-54-9
C20H23N7O7
N2-Ac-DL-Lysine
24321-24-2
C8H16N2O3
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