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

?? ?:Shanghai Haohong Scientific Co., Ltd.
??:400-8210725
???:malulu@leyan.com
??:China
URL: www.leyan.com/
? ?? ?:39984

?? ????

Nicorandil Impurity 3889166-58-5C4H8N2O4
Methyl 6-chloro-4-hydroxy-2H-thieno[2,3-E][1,2]thiazine-3-carboxylate 1,1-dioxide906522-88-1C8H6ClNO5S2
4-(5-Bromopyridin-3-ylsulfonyl)morpholine4-(5-??????-3-????)???95889676-35-1C9H11BrN2O3S
N-Bromoacetyl-β-alanineN-??????-???89520-11-6C5H8BrNO3
1-(3-Hydroxy-4-nitrophenyl)ethan-1-one1-(3-????-4-?????)???89942-63-2C8H7NO4
tert-Butyl 6-bromo-4h-spiro[benzo[d][1,3]dioxine-2,4'-piperidine]-1'-carboxylate895525-73-2C17H22BrNO4
4-Bromo-3-methyl-pyridine-2-carbonitrile4-???-3-??-???-2-??????886372-11-8C7H5BrN2
4-(2-Bromoethyl)morpholine hydrochloride????,4-(2-broMoethyl)-,???89583-06-2C6H13BrClNO
Methyl 3-oxo-2,3-dihydropyridazine-4-carboxylate??3-??-2,3-????????-4-???????89640-80-2C6H6N2O3
tert-Butyl 3-[4-(trifluoromethyl)phenyl]piperazine-1-carboxylate4-Boc-2-(4-(????????)??)????886767-93-7C16H21F3N2O2
2-(2-Aminopyridin-4-yl)acetic acid2-???-4-???????887580-47-4C7H8N2O2
tert-Butyl 2-cyclopropylpiperazine-1-carboxylate2-??????-????-1-?????tert-??????886779-93-7C12H22N2O2
rel-(3aR,4S,6R,6aS)-6-Aminotetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-ol88756-83-6C8H15NO3
tert-Butyl N-[1-(aminomethyl)cyclopentyl]carbamate(1-?????-??????)-????TERT-??????889949-09-1C11H22N2O2
1-Boc-4-(1-Amino-2-ethoxycarbonylethyl)piperidine??3-(1-BOC-????-4-YL)-DL-??-??????886362-37-4C15H28N2O4
Sitagliptin Impurity 8189124-06-1C4H6Cl2N2O2
2,6-Dichloro-4-ethoxypyridine2,6-????-4-??????894804-42-3C7H7Cl2NO
4,4'-Diiodo-2,2'-bis(trifluoromethyl)-1,1'-biphenyl2,2'-BIS(????????)-4,4'-???????89803-70-3C14H6F6I2
(S)-1-(2-Aminoacetyl)pyrrolidine-2-carbonitrile hydrochloride913980-23-1C7H12ClN3O
Tirofiban Impurity 401-????1-???????91284-46-7C7H16O3S
(4-((2-(Diethylamino)ethyl)carbamoyl)phenyl)boronic acid hydrochloride4-(2-(??????)??????)?????,HCL913835-46-8C13H22BClN2O3
3-(Hydroxymethyl)quinolin-2(1H)-one3-???????-1H-???-2-ONE90097-45-3C10H9NO2
1-Chloro-2,3-dimethoxybenzene1-???-2,3-??????90282-99-8C8H9ClO2
2-(4-(6-((5-((2-Chloro-6-methylphenyl)carbamoyl)thiazol-2-yl)amino)-2-methylpyrimidin-4-yl)piperazin-1-yl)acetic acid (Dasatinib Impurity)910297-53-9C22H24ClN7O3S
2-{[(tert-Butoxy)carbonyl]amino}-1,3-oxazole-5-carboxylic acid2-TERT-?????????-???-5-????903094-60-0C9H12N2O5
(2R,5R)-2,5-bis(methoxymethyl)pyrrolidine90290-05-4C8H17NO2
O-((((9H-fluoren-9-yl)methoxy)carbonyl)-L-alanyl)-N-(tert-butoxycarbonyl)-L-threonine909115-21-5C27H32N2O8
6-Oxaspiro[2.5]octane-1-carboxylic acid6-?????[2.5]??-1-?????909406-73-1C8H12O3
(±)-Clopidogrel(+/-)-?????????90055-48-4C16H16ClNO2S
Ethyl 1,4-dimethylpiperazine-2-carboxylate??1,4-???????-2-???????90729-01-4C9H18N2O2
4-Chloro-6-methyl-5H-pyrrolo[3,2-d]pyrimidine4-???-6-??-5H-???[3,2-d]????91862-35-0C7H6ClN3
Bis(3-methoxyphenyl)amine??(3-?????)??92248-06-1C14H15NO2
Ethyl 2-(4-bromo-2-fluoro-phenyl)acetate??2-(4-???-2-??????)?????924312-09-4C10H10BrFO2
1,2,3,4-Tetrahydroisoquinolin-8-amine1,2,3,4-????????????-8-aMine924633-49-8C9H12N2
3-(4-Bromo-1h-pyrazol-1-yl)propanoic acid3-(4-???-???-1-YL)-?????925146-35-6C6H7BrN2O2
5-Chlorobenzo[d]oxazol-6-amine5-???-6-???????916791-64-5C7H5ClN2O
Bifonazole Impurity 1191487-87-5C20H17NO
Ethyl 6-(2-nitrophenyl)imidazo[2,1-b]thiazole-3-carboxylate6-(2-???-??)-????[2,1-B]???-3-???????????925437-84-9C14H11N3O4S
2-Methoxy-6-(trifluoromethyl)nicotinic acid2-???-6-????????-????916160-41-3C8H6F3NO3
3-(1-Pyrrolidinylsulfonyl)benzenamine3-(1-????????)???91619-38-4C10H14N2O2S
(R)-tert-Butyl (1-(3-chlorophenyl)-2-hydroxyethyl)carbamate?????,N-[(1R)-1-(3-?????)-2-??????]-,1,1-?????????926291-64-7C13H18ClNO3
Ethyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-2-carboxylate1H-??-2-?????,7-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-,ETHYLESTER919119-62-3C17H22BNO4
2-Chloro-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)ethan-1-one6-??????-14-?????9793439-37-3C10H9ClO3
1-Bromo-2-fluoro-4-methylsulfanylbenzene(4-???-3-??????)(??)??917562-25-5C7H6BrFS
1-(Boc-amino)-2,3-butadiene????,2,3-?????-,1,1-?????????(9CI)92136-43-1C9H15NO2
Dicyclohexylamine (S)-2-((tert-butoxycarbonyl)amino)-3-(1-(mesitylsulfonyl)-1H-indol-3-yl)propanoate92916-48-8C37H53N3O6S
5-Chloro-N-[[(5S)-3-[4-[(2-hydroxyethyl)amino]phenyl]-2-oxo-5-oxazolidinyl]methyl]-2-thiophenecarboxamide????????12936232-22-3C17H18ClN3O4S
2-(4-Fluorophenyl)thiazole-5-carbaldehyde2-(4-(????????)??)???-5-???????914348-80-4C10H6FNOS
1-(4-(2-Aminophenyl)piperazin-1-yl)ethan-1-one1-[4-(2-?????)????-1-?]???91646-45-6C12H17N3O
1-(2-Hydroxyethyl)imidazolidine-2-thione1-(2-??????)??????-2-??932-49-0C5H10N2OS
Benzyl (2,4-difluoro-3-formylphenyl)carbamate??2,4-?????-3-???????????918524-07-9C15H11F2NO3
Flurbiprofen Impurity 3991503-88-7C19H19FO4
5-Bromo-2-ethoxybenzotrifluoride4-broMo-2-(????????)???914635-58-8C9H8BrF3O
2-Amino-4-bromobenzenethiol2-???-4-???????93933-49-4C6H6BrNS
4-Iodo-1-methyl-1H-indazole1H-???,4-????-1-??-935661-15-7C8H7IN2
(E)-3-(m-Tolyl)acrylaldehyde2-????,3-(3-????)-,(2E)93614-80-3C10H10O
5-Methoxy-2,3-dihydro-1-benzofuran-2-carboxylic acid5-???-2,3-?????-????-2-?????93885-41-7C10H10O4
p-Nitrophenyl 3-O-α-D-mannopyranosyl-α-D-mannopyranoside4-?????3-O-(AD-MANNOPYRANOSYL)-AD-MANNOPYRANOSIDE93979-06-7C18H25NO13
Benzofuran-3-yl acetate3-????????93680-80-9C10H8O3
3-Methylpicolinamide3-????????937648-82-3C7H8N2O
5-(2-(Trifluoromethyl)phenyl)furan-2-carbaldehyde5-[2-(????????)??]-2-??????94098-56-3C12H7F3O2
Fuc1-α-2Gal1-β-3GlcNAc-β-PNP93496-53-8C26H38N2O17
(1-Benzylpyrrolidine-2,5-diyl)dimethanol(1-??????-2,5-??)????92197-46-1C13H19NO2
2-Amino-1-(pyridin-3-yl)ethan-1-ol2-???-1-???-3-?-???92990-44-8C7H10N2O
(4-Bromo-1-methyl-1h-pyrazol-3-yl)methanamine(4-???-1-??-1H-???-3-?)????926921-71-3C5H8BrN3
Benzyl 3-aminopiperidine-1-carboxylate hydrochloride960541-42-8C13H19ClN2O2
2,3-Dehydro Darifenacin Hydrobromide2,3-???????????????????943034-52-4C28H29BrN2O2
tert-Butyl thietan-3-ylcarbamatetert-?????-3-???????943437-98-7C8H15NO2S
N-Fmoc-(2S,3S)-3-Amino-3-(4-fluoro-phenyl)-2-hydroxy-propionic acid959583-03-0C24H20FNO5
(2S,4S,5R)-5-(acetoxymethyl)tetrahydrofuran-2,4-diyl diacetate1,3,5-Tri-O-???-2-???-??-D-????-??????96291-75-7C11H16O7
4-Methoxy-N-phenyl-N-(p-tolyl)aniline(4-?????)??-p-????97126-56-2C20H19NO
Meropenem Impurity 396035-23-3C15H19N3O5S
2-(Dimethylamino)-6-fluorobenzonitrile2-???????-6-?????????96994-73-9C9H9FN2
2-(2-Bromophenyl)-1,3,2-dioxaborinane959589-03-8C9H10BBrO2
6-Methylpyridazin-3(2H)-one Hydrobromide6-??????-3(2H)-???????????94248-99-4C5H7BrN2O
3-((4-Bromophenyl)amino)-3-oxopropanoic acid4'-????????????95262-09-2C9H8BrNO3
2-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)benzaldehyde(2-????)??????????????95752-86-6C12H15BO3
2-Propylcyclohexanone2-??????????94-65-5C9H16O
2,4-Dichloro-8-(trifluoromethoxy)quinazoline959237-48-0C9H3Cl2F3N2O
Boc-(R)-4-(2-propynyl)-L-proline959581-98-7C13H19NO4
O-((((9H-fluoren-9-yl)methoxy)carbonyl)-L-alanyl)-N-(tert-butoxycarbonyl)-L-serine944283-07-2C26H30N2O8
YM 737????????????????97451-46-2C13H23N3O6S
O-((((9H-fluoren-9-yl)methoxy)carbonyl)-L-isoleucyl)-N-(tert-butoxycarbonyl)-L-serine944283-10-7C29H36N2O8
Diethyl P-(2,5-dioxo-4-imidazolidinyl)phosphonate???5-??????????95378-36-2C7H13N2O5P
1-Cyclopropyl-2-(3-fluorophenyl)ethan-1-one???????3-????????952722-64-4C11H11FO
4-[(tert-Butoxycarbonyl)amino]piperidine-4-carboxylic acid ethyl ester??4-((tert-???????)???)????-4-???????956460-98-3C13H24N2O4
1-Trityl-1H-pyrazole1-??????95163-43-2C22H18N2
5'-(2-Carboxyphenyl)-[1,1':3',1''-terphenyl]-2,2''-dicarboxylicacid955050-88-1C27H18O6
(4-((Neopentyloxy)sulfonyl)phenyl)boronic acid957060-74-1C11H17BO5S
6-Methoxybenzo[d]thiazole-2-carboxamide6-????????-2-??????946-12-3C9H8N2O2S
3,4-Dihydro-spiro[naphthalene-1,4'-piperidine] hydrochloride4-SPIRO-[1-(3,4-DIHYDRO)NAPHTHALENE]????HCL95195-98-5C14H20ClN
2-Methoxy-6-(trifluoromethyl)nicotinaldehyde944904-45-4C8H6F3NO2
5,6-Isopropylidene-L-gulonic acid γ-lactone5,6-O-???????-L-?????-??94697-68-4C9H14O6
6-Chloro-N-isopropyl-2-(methylthio)pyrimidin-4-amine6-???-2-(????)-N-?????????-4-??951884-54-1C8H12ClN3S
(R)-1-Methylpyrrolidine-3-carboxylic acid952484-55-8C6H11NO2
4-Methylpiperidin-3-ol4-??-????-3-?955082-96-9C6H13NO
5-Methylpyridin-3-aminehydrochloride957065-90-6C6H9ClN2
6,7-Dimethyl-5,6,7,8-tetrahydropterin (hydrochloride)945-43-7C8H14ClN5O
3-Iodo-1H-indazole-6-carbaldehyde3-???-1H-???-6-???????944904-42-1C8H5IN2O
(R)-3-((benzyloxy)carbonyl)oxazolidine-4-carboxylic acid(R)-(+)-3-(???????)-4-?????????97534-84-4C12H13NO5
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