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Shanghai Haohong Scientific Co., Ltd.??? ?? ??? ?????.

?? ?:Shanghai Haohong Scientific Co., Ltd.
??:400-8210725
???:malulu@leyan.com
??:China
URL: www.leyan.com/
? ?? ?:39990
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Amisulpride Impurity 2????,1-??-2-???-(9CI)261614-86-2C7H15NO
3-((1H-Indol-4-yl)oxy)propane-1,2-diol (Pindolol Impurity)3-(1H-??-4-???)-61212-32-6C11H13NO3
(2'R,4aR,4bS,6aS,7aS,8aS,8bS,8cR,9S)-9-(Chloromethyl)-4a,6a-dimethyl-4,4a,4b,5,6,6a,8,8a,8b,8c,9,10-dodecahydro-2H,3'H-spiro[cyclopropa[4,5]cyclopenta[1,2-a]phenanthrene-7,2'-furan]-2,5'(3H,4'H,7aH)-dione (Drospirenone Impurity)7-?????17R-??????932388-89-1C24H31ClO3
N-((S)-1,2-Dimethoxy-10-(methylthio)-9-oxo-3-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-5,6,7,9-tetrahydrobenzo[a]heptalen-7-yl)formamide (Thiocolchicoside Impurity)N-?????-N-?????????219547-29-2C26H31NO10S
(3R,4S)-6-methoxytetrahydro-2H-pyran-3,4-diol????iMpurity4863396-35-4C6H12O4
3-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)aniline hydrochloride3-?????????,??????????????850567-43-0C11H17BClNO2
Abiraterone Impurity 42118-32-3C23H34O2
Apremilast Impurity 342469037-82-7C20H20N2O7S
N-(((9H-Fluoren-9-yl)methoxy)carbonyl)-N-(2,4-dimethoxybenzyl)-l-phenylalanine1703781-74-1C33H31NO6
2-(Dimethylamino)-2-phenylbutan-1-ol hydrochloride (Trimebutine Impurity)??-(??????)-??-???????????60577-23-3C12H20ClNO
4-(2-Chlorophenoxy)benzonitrile270259-93-3C13H8ClNO
Methyl (5-(4-methylbenzoyl)-1H-benzo[d]imidazol-2-yl)carbamate (Mebendazole Impurity)4-??????31545-31-0C17H15N3O3
1,1′,1′′-Benzo[1,2-b:3,4-b′:5,6-b′′]trithiophene-2,5,8-triyltris[1,1,1-trimethylstannane]1289556-30-4C21H30S3Sn3
(6R,7R)-7-((Z)-2-(Acetoxyimino)-2-(2-aminothiazol-4-yl)acetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (Cefdinir Impurity)127770-93-8C16H15N5O6S2
Benzhexol Impurity 86853-22-1C16H25NO
(6S,8S,9R,10S,11S,13S,14S,16S,17R)-6,9-Dichloro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-(2-(propionyloxy)acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate (Beclometasone Dipropionate Impurity)887130-68-9C28H36Cl2O7
(S)-1-((S)-2-(((S)-4-Cyclohexyl-1-ethoxy-1-oxobutan-2-yl)amino)propanoyl)pyrrolidine-2-carboxylic acid (Enalapril Impurity)2055735-10-7C20H34N2O5
Apremilast Impurity 252096492-44-1C22H24N2O8S
Aprepitant Impurity 22172678-47-6C20H18F7NO2
3,3'-((Methylenebis(4,1-phenylene))bis(oxy))bis(1-(isopropylamino)propan-2-ol) (Bisoprolol Impurity)1225195-70-9C25H38N2O4
Methyl 7-chloro-1H-indazole-3-carboxylateMETHYL7-???-1H-INDAZOLE-3-CARBOXYLATE885278-56-8C9H7ClN2O2
Methyl 6-chlorohexanoate??6-?????????14273-89-3C7H13ClO2
2-(3-(4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)azetidin- 3-yl)acetonitrile hydrochloride2497340-56-2C14H14ClN7
(2-((1H-Imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methanol (Ketoconazole Impurity)84682-23-5C14H14Cl2N2O3
(Z)-3-(4-Chlorobenzylidene)isobenzofuran-1(3H)-one (Azelastine Impurity)105279-16-1C15H9ClO2
(5-Chloro-2-(3-(chloromethyl)-5-methyl-4H-1,2,4-triazol-4-yl)phenyl)(phenyl)methanone (Alprazolam Impurity)37945-07-6C17H13Cl2N3O
N-((3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-oxotetrahydro-2H-pyran-3-yl)acetamide2-??????-2-???-D-????-.??.-??19026-22-3C8H13NO6
(8R,9S,13S,14S,17R)-13-Ethyl-17-ethynyl-3-methoxy-4,6,7,8,9,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol (Levonorgestrel Impurity)14507-51-8C22H30O2
2',5'-Bis(prop-2-yn-1-yloxy)-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde2585189-58-6C26H18O4
Isobutyl 2-cyanoacrylate?????1069-55-2C8H11NO2
5-(Oxiran-2-ylmethoxy)-3,4-dihydroquinolin-2(1H)-one (Carteolol Impurity)5-(2,3-???????)-3,4-??????????51781-14-7C12H13NO3
Ethyl 3-(methyl(phenyl)amino)propanoateN-??-N-??-??-?????????2003-76-1C12H17NO2
1-Methyl-3-(3-sulfopropyl)-1H-imidazol-3-ium hydrogensulfate916479-93-1C7H16N2O7S2
S66771889344-13-1C86H74N4O2S8
(E)-3-((3-Carboxy-4-hydroxyphenyl)diazenyl)-2-hydroxybenzoic acid (Olsalazine Impurity)752188-68-4C14H10N2O6
2-(4-Bromo-1-methyl-1H-pyrazol-5-yl)acetonitrile1310379-54-4C6H6BrN3
Methyl 5-acetamido-2-methylbenzoate??5-??????-2-??-?????91133-72-1C11H13NO3
(2aR,3aS,3bS,3cS,5aS,6R,8aS,8bR,9S,10S)-6-Acetyl-10-chloro-9-hydroxy-3b,5a-dimethyl-2-oxo-2,2a,3,3a,3b,3c,4,5,5a,6,7,8,8a,8b,9,10-hexadecahydrocyclopenta[a]cyclopropa[g]phenanthren-6-yl acetate (Cyproterone Acetate Impurity)6β-???-7α-????-6,7-???????????????23814-84-8C24H31ClO5
(2R,3R,4S,5R,6S)-3,4,5-tris(benzyloxy)-2-((benzyloxy)methyl)-6-(ethylthio)tetrahydro-2H-pyran??2,3,4,6-???-O-??-bD-???????????108739-67-9C36H40O5S
Tetrabutylammonium methoxide?????????????34851-41-7C17H39NO
Methyl 1-(acetoxymethyl)-4-hydroxy-7-phenoxyisoquinoline-3-carboxylate1509958-20-6C20H17NO6
S-((2'R,6S,7S,8R,9S,10R,13S,14S)-6-Hydroxy-10,13-dimethyl-3,5'-dioxo-1,2,3,4',5',6,7,8,9,10,11,12,13,14,15,16-hexadecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-7-yl) ethanethioate (Spironolactone Impurity)880106-10-5C24H32O5S
2-(7-methoxy-1,2,3,4-tetrahydronaphthalen-1-yl)ethan-1-amine hydrochloride1352303-07-1C13H19NO
4'-hydroxy-3'-nitro-[1,1'-biphenyl]-3-carboxylic acid1097777-60-0C13H9NO5
methyl 2-((4R,6R)-6-(2-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4- (phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4- yl)acetate1353049-81-6C37H41FN2O5
N-(2-Chlorobenzyl)-2-(thiophen-2-yl)ethanamine (Ticlopidine Impurity)69061-17-2C13H14ClNS
ethyl(Z)-2-(11-(3-(dimethylamino)propylidene)-6,11-dihydrodibenzo [b,e]oxepin-2-yl)acetate113806-03-4C23H27NO3
N-Methyl-N-((1-methyl-1H-pyrazol-4-yl)methyl)cyclohex-3-ene-1-carboxamide1215461-16-7C13H19N3O
(2S,4R)-N-((1R,2R)-2-Hydroxy-1-((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(methylthio)tetrahydro-2H-pyran-2-yl)propyl)-4-propylpyrrolidine-2-carboxamide (Lincomycin Impurity)2256-16-8C17H32N2O6S
Potassium 3-((4aS,4bR,5aR,6aS,7R,9aS,9bR,10R)-7-hydroxy-10-(methoxycarbonyl)-4a,6a-dimethyl-2-oxo-2,3,4,4a,5a,6,6a,7,8,9,9a,9b,10,11-tetradecahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-7-yl)propanoate (Eplerenone Impurity)???????????95716-98-6C24H33KO7
5H-Pyrimido[4,5-d]azepine, 2,4-dichloro-6,7,8,9-tetrahydro-, hydrochloride (1:)2,4-????-6,7,8,9-???????-5H-????[5,4-d]???635698-50-9C8H9Cl2N3
8-(3-Methoxyphenyl)-4-methyldihydro-4lambda4,8lambda4-[1,3,2]oxazaborolo[2,3-b][1,3,2]oxazaborole-2,6(3H,5H)-dione3-????????MIDA????1104636-71-6C12H14BNO5
rel-(1R,2S)-2-(4-Fluorophenyl)cyclopropan-1-amine hydrochloride???-[2-(4-??????)???????]?????26568-26-3C9H11ClFN
Methyl (1S,4S)-4-((tert-butoxycarbonyl)amino)cyclopent-2-ene-1-carboxylate298716-04-8C12H19NO4
3-Amino-N-butylbenzenesulfonamide143173-93-7C10H16N2O2S
5,5′-(2λ4δ2-Benzo[1,2-c:4,5-c′]bis[1,2,5]thiadiazole-4,8-diyl)bis[2-thiophenecarboxaldehyde]1292303-62-8C16H6N4O2S4
4-Bromo-7-(5-hexyl-[2,2-bithiophen]-5-yl)-[1,2,5]thiadiazolo[3,4-c]pyridine1361034-02-7C19H18BrN3S3
4-(3,4-Difluorophenyl)-2-methyl-4-oxobutanoic acid191018-57-2C11H10F2O3
(S)-1-(3-(Dimethylamino)propyl)-1-phenyl-1,3-dihydroisobenzofuran-5-carbonitrile (Escitalopram Impurity)1346617-30-8C20H22N2O
(1R,2R)-2-(3-Chloro-3-oxopropyl)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium benzenesulfonate (Cisatracurium Impurity)1100676-20-7C30H36ClNO8S
(1R,3R,4S,7R)-3-(6-Amino-2-fluoro-9H-purin-9-yl)-2,5-dioxabicyclo[2.2.1]heptan-7-ol (Fludarabine Impurity)548774-57-8C10H10FN5O3
6-Chloro-1-cyclopropyl-7-(4-ethylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (Enrofloxacin Impurity)1369495-59-9C19H22ClN3O3
(methoxycarbonyl)-d-proline1344908-81-1C7H11NO4
Arbidol Impurity 141332614-17-1C21H23BrN2O3S
4-acetamidohex-5-enoic acid1824506-31-1C8H13NO3
(R)-2-Benzhydrylpyrrolidine-2-carboxylic acid hydrochloride1049728-69-9C18H20ClNO2
(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-fluorobutanoic acid2350701-37-8C19H18FNO4
2-(4-Morpholinyl)ethyl (4Z)-6-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoate2286278-51-9C23H31NO7
(2S,4S)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)-4-benzylpyrrolidine-2-carboxylic acid1334671-66-7C27H25NO4
(4-((2-Hydroxyethyl)thio)phenyl)boronic acid4-(2'-????????)?????2032409-51-9C8H11BO3S
Betamethasone Impurity 3311-??-?????????????64967-90-4C28H35FO7
tert-butyl 2-((4R,6R)-6-(2-(2-(2-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate1099474-28-8C40H47FN2O5
(2-Butylbenzofuran-3-yl)(4-(2-(diethylamino)ethoxy)-3-iodophenyl)methanone hydrochloride (Amiodarone Impurity)1397201-93-2C25H31ClINO3
3-Amino-6-chloro-2-methyl-4-phenyl-3,4-dihydroquinazolin-4-ol (Alprazolam Impurity)27537-87-7C15H14ClN3O
Methyl (((9H-fluoren-9-yl)methoxy)carbonyl)-l-valyl-l-valinate93709-91-2C26H32N2O5
(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(6-oxo-1,6-dihydropyridin-2-yl)propanoic acid2382469-82-9C23H20N2O5
(E)-3-(4-((1H-imidazol-1-yl)methyl)phenyl)-1-(1H-imidazol-1-yl)prop-2-en-1-one2452215-05-1C16H14N4O
5-(3,4-Diaminothiophen-2-yl)pentanoic acid (Biotin Impurity)??????C412308-26-0C9H14N2O2S
N,N-Diethyl-N-(4-vinylbenzyl)ethanaminium chloride1-????-(4-????)????????14350-43-7C15H24ClN
(E)-N,6,6-Trimethyl-N-(naphthalen-2-ylmethyl)hept-2-en-4-yn-1-amine (Terbinafine Impurity)187540-01-8C21H25N
Pivaloyl-d-leucine899900-51-7C11H21NO3
N-(3-((4-Amino-6,7-dimethoxyquinazolin-2-yl)(methyl)amino)propyl)formamide hydrochloride (Alfuzosin Impurity)1796934-51-4C15H22ClN5O3
(6R,7R)-3-(((1,3,4-Thiadiazol-2-yl)thio)methyl)-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (Ceftezole Impurity)24209-43-6C10H10N4O3S3
(2-Chlorothiazol-4-yl)methanamine4-???????,2-???-139425-75-5C4H5ClN2S
1-(3-Iodo-1-isopropyl-1H-pyrazol-4-yl)ethan-1-one1269440-49-4C8H11IN2O
3-amino-2-((2,6-dioxopiperidin-3-yl)carbamoyl)benzoic acid1001852-15-8C13H13N3O5
2-Methoxydibenzo[b,d]furan2-????????,9620357-70-4C13H10O2
N-((4-Cyano-3-(trifluoromethyl)phenyl)carbamothioyl)benzamide1895865-08-3C16H10F3N3OS
7-Methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one20979-50-4C17H14O4
1-Ethoxy-3-iodobenzene3-??????29052-00-4C8H9IO
3-Chloro-N-(2-chloroethyl)propan-1-amine42453-19-0C5H11Cl2N
8-chloro-11-(piperidin-4-ylidene)-5,11-dihydro-6H-benzo[5,6]cyclohepta[1,2-b]pyridin-6-one119410-04-7C19H17ClN2O
Albendazole Impurity 7 (Methyl Cyanocarbamate) Sodium SaltN-METHOXYCARBONYLCYANAMIDE????51234-98-1C3H3N2NaO2
(8S,9R,10S,11S,13S,14S,16R,17S)-9-Fluoro-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one (Triamcinolone Impurity)337-02-0C21H29FO6
5-(Diethylamino)pentan-2-ol5-??????-2-???5412-69-1C9H21NO
(2S,3R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)-3-phenylbutanoic acid2306437-90-9C26H25NO4
1-(4-(2-Hydroxy-3-(isopropylamino)propoxy)-1H-indol-1-yl)-3-(isopropylamino)propan-2-ol (Pindolol Impurity)N-(3-????????-2-???????)???130115-63-8C20H33N3O3
3-Chloro-N-sulfamoylpropanimidamide3-???-N-??????????106492-70-0C3H8ClN3O2S
N-((2S,3R,4R,5S,6R)-4,5-Dihydroxy-6-(hydroxymethyl)-2-(2-methoxy-4-(2-nitrovinyl)phenoxy)tetrahydro-2H-pyran-3-yl)acetamide70622-74-1C17H22N2O9
Diphosphoric acid, P,P′-bis[3-[(2-chloroethyl)amino]propyl] ester (Ifosfamide Impurity)241482-18-8C10H24Cl2N2O7P2
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