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Cato Research Chemicals Inc.??? ?? ??? ?????.

?? ?:Cato Research Chemicals Inc.
??:020-81960175
???:3008394369@qq.com
??:China
URL: www.cato-chem.com/
? ?? ?:15726

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3,4-Dihydroxy-5-Nitrobenzoic Acid3,4-?????-5-??????84211-30-3C7H5NO6
Tulobuterol Impurity 1214185-28-5C12H18ClNO
Bilastine Impurity 44
Nicorandil Impurity 16 Nitrate4665-58-1C2H7N3O6
Oxazepam EP Impurity C6-???-4-??????-2-????????5958-05-4C15H9ClN2O
Mogroside IIA2??????IIA288901-45-5C42H72O14
Tolvaptan Impurity 683951-89-1C10H10BrNO
Salcaprozate Impurity N120073-95-4C20H24N2O4
Acrylic Acid-13C3????(13C3)202326-54-3C3H4O2
Ketoprofen Impurity 382-???-2-???????????24131-07-5C12H13NO2
(S)-Viloxazine Hydrochloride(S)-???????56287-61-7C13H20ClNO3
Alogliptin Related Compound 13????????B865758-98-1C17H19N5O2
Esmolol Impurity 706452-58-0C6H13NO
bis(2-ethylhexyl) cyclohexane-1,4-dicarboxylate??(2-????) ??????-1,4-?????????84731-70-4C24H44O4
Drospirenone Impurity N282543-16-6C21H30O3
2,4-Dinitro-1H-imidazole2,4-????-3H-????5213-49-0C3H2N4O4
VYL51769RX 3806-34-6 Distearyl pentaerythritol diphosphite O,O'-Dioctadecylpentaerythritol bis(phosphite) 2,4,8,10-Tetraoxa-3,9-diphosphaspiro(5.5)undecane, 3,9-bis(octadecyloxy)- EINECS 223-276-???? ??????????(???? ?????)3806-34-6C41H82O6P2
Rizatriptan EP Impurity C???????208941-96-2C15H19N5
Silybin A,B (mixture)???802918-57-6C25H22O10
Doxycycline EP Impurity B(HCl)3963-95-9C22H23ClN2O8
Tioxolone6-????-1,3-?????-2-?4991-65-5C7H4O3S
4-Amino-3-methylpyridine1990-90-5C6H8N2
(1S,2S,3R,4R,5R)-1-(4-Chloro-3-(4-(((S)-tetrahydrofuran-3-yl)oxy)benzyl)phenyl)hexane-1,2,3,4,5,6-hexaol2452301-18-5C23H29ClO8
rac Viloxazine Hydrochloride35604-67-2C13H20ClNO3
Dithranol EP impurity C1,8,1',8'-???????????31991-54-5C28H18O6
Hydroxychloroquine Impurity 54????????880-09-1C11H22N2
Desmethoxy Gatifloxacin Trifluoroacetic Acid Salt93107-32-5C18H20FN3O3
574-93-6 V5PUF4VLGY 29H, 31H-Phthalocyanine CI 74100 Phthalocyanine Pigment blue 16 29H,31H-Phthalocyanine CI Pigment Blue 16 5,28:14,19-Diimino-7,12:26,21-dinitrilotetrabenzo(c,h,m,r)(1,6,11,29H,31H-???????574-93-6C32H18N8
Dapagliflozin Impurity 111960494-15-9C33H57ClO7Si4
3,3,4,4,5,5,6,6,7,7,8,8,9,10,10,10-Hexadecafluoro-9-(trifluoromethyl)decan-1-ol31200-98-3C11H5F19O
Opicapone Impurity 02923288-59-9C8H9Cl2N3O
(±E)-±-(Methoxyimino)-2-Furanacetic Acid Ammonium Salt97148-40-8C7H10N2O4
Tafluprost Impurity 19
Glucosamine sulfate?????????29031-19-4C6H15NO9S
Barloxavir impurity 922460686-98-8
(R)-2,3-Dihydro-1H-inden-1-amine hydrochloride(R)-2,3-????-1H-??-1-?????10305-73-4C9H12ClN
Drospirenone Impurity N182543-15-5C20H28O3
Tandospirone N-Oxide Impurity 12
sodium (R)-2,3-bis(palmitoyloxy)propyl (2,3-dihydroxypropyl) phosphate1,2-??????-SN-????-3-?????-RAC-????,NA?200880-41-7C38H76NaO10P
1-(2-chloroethoxy)-2-ethoxyethane1-(2-??????)-2-?????41771-35-1C6H13ClO2
3,7,11,15-Tetramethylhexadec-2-en-1-ol7541-49-3C20H40O
Dienogest EP Impurity J64?24284-84-2C21H27NO2
Dantrolene sodium hydrate24868-20-0C14H13N4NaO6
Tolvaptan Impurity 652458812-63-8
Lusutrombopag Impurity 13
VareniclineImpurity18230615-70-0C15H12F3N3O
17-epi-Dienogest
2,5-Dichloro-4,6-dimethylnicotinonitrile2,5-????-4,6-??????????91591-63-8C8H6Cl2N2
6P9E788VZZ 5421-46-5 Acetic acid, mercapto-, monoammonium salt Ammonium mercaptoacetate Ammonium thioglycolate Mercaptoacetic acid, monoammonium salt Acetic acid, 2-mercapto-, ammonium salt (1:1?????????5421-46-5C2H7NO2S
2,6-Dichlorobenzoxazole2,6-????????3621-82-7C7H3Cl2NO
Calcium Dobesilate Impurity 3
(R)-Viloxazine Hydrochloride(R)-???????56287-63-9C13H20ClNO3
3,4,5-Tricaffeoylquinic acid86632-03-3C34H30O15
(S)-3-Methyl-2-(((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)butanenitrile66465-22-3C11H19NO6
Doxorubicin Impurity 7105612-58-6C21H14O7
Metaraminol Impurity 623-?????????53087-13-1C13H11BrO
Melatonin impurity 7278783-22-5C13H15N3O3
N-(p-Toluenesulfonyl)glycine Methyl Ester2645-02-5C10H13NO4S
Tolvaptan Impurity 642657689-28-4C42H38ClN3O5
Diquafosol Impurity 15???5'-????????10003-94-8C9H16N2O18P4
Amphotericin B Impurity 7
6alpha,9alpha-Difluoroprednisolone 17-Acetate6α,9α-???????????17-?????23674-85-3C23H28F2O6
Tolvaptan Impurity N12-??-4-???????????30459-70-2C8H6ClNO3
Tobramycin Impurity 1452850-89-2C6H14N2O3
3-Amino-5-methylpyridine3430-19-1C6H8N2
Perfluoro-4-ethylcyclohexanesulfonic acid, potassium saltDECAFLUORO-4-(PENTAFLUOROETHYL)CYCLOHEXANESULFONICACID???335-24-0C8H2F15KO3S
Anagrelide Impurity 392-????-3-?????1003-56-1C6H7NO
Propargyl Chloride?????????624-65-7C3H3Cl
Selexipag Impurity 23475086-95-4C20H20N2O2
Betamethasone impurity 01910-99-6C24H30O5
Lusutrombopag Impurity 12
3-(2-Methoxyphenoxy)propylamine3-(2-??????)???-1-??3245-88-3C10H15NO2
7-Hydroxy-8-((2-methoxyphenyl)diazenyl)-N,N,N-trimethylnaphthalen-2-aminium chloride?????76?68391-30-0C20H22ClN3O2
2-Chloro-5-methylpyridine 1-oxide???,2-???-5-??-,1-????20173-49-3C6H6ClNO
Dipropyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate?????????????77888-05-2C21H26N2O6
(4R)-Pregabalin Amide Lactose Adduct501665-88-9C20H35NO11
Bilastine Impurity 22202189-77-3C32H44N4O2
Delta-9,11-methylprednisolone Acetate93239-37-3C24H30O5
Calcium Dobesilate Impurity 2
Methyl 3-oxocyclobutanecarboxylate??3-?????????????695-95-4C6H8O3
Lysine Impurity 2 Trifluoroacetic acid
Erdosteine Thioacid Disodium Salt??????????????254884-18-9C8H11NNa2O5S2
Epirengynic acid???517883-38-4C8H14O4
Edoxaban Impurity N1758685-72-2C8H10N2O2S
Chlorocriptine??????68944-88-7C32H40ClN5O5
Acetyl tetrapeptide-9(Dermican LS 9837)??????????-9928006-50-2C22H33N7O9
Selexipag Impurity 262068134-98-3C19H19N3
Vitamin K1 Impurity 61121917-04-2C16H14O2
Grayanotoxin III???????III4678-45-9C20H34O6
Alogliptin impurity 402749424-28-8C26H26N6O2
Tetrachloro Biphenol S30609-79-1C12H6Cl4O4S
Pirfenidone Impurity 62640792-41-0C12H11NO
3-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-7,9-dihydro-1H-purine-2,6,8(3H)-trione???????2124-54-1C10H12N4O7
Tafluprost impurity 23
4,4,5,5,6,6,7,7,7-Nonafluoroheptanoic Acid2H,2H,3H,3H-????????80705-13-1C7H5F9O2
11-cis-Retinol22737-96-8C20H30O
(E)-Cilnidipine Impurity 15
Cheilanthifoline483-44-3C19H19NO4
Bilastine-d62470116-56-2C28H37N3O3
Vitamin K1 Impurity 602580987-83-1
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