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

?? ?:Shanghai Haohong Scientific Co., Ltd.
??:400-8210725
???:malulu@leyan.com
??:China
URL: www.leyan.com/
? ?? ?:39988
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2-Bromo-1-(2-bromo-4,6-dimethylphenyl)ethan-1-one2-???-1-(2-???-4,6-?????)???1246471-30-6C10H10Br2O
(Z)-5-Methoxy-1-(4-(trifluoromethyl)phenyl)pentan-1-one O-(2-((2-aminoethyl)amino)ethyl) oxime (Fluvoxamine Impurity)N-(?????)?????1217262-11-7C17H26F3N3O2
Methyl 4-(chloromethyl)-3,5-difluorobenzoate4-?????-3,5-?????-?????????1263283-69-7C9H7ClF2O2
4-Chloro-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid4-???-7-????-2-?…1211583-37-7C8H5ClN2O2
1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine1254982-25-6C12H22BNO2
rel-Methyl (1R,2S)-2',3'-dichloro-5-methyl-3-oxo-1,2,3,6-tetrahydro-[1,1'-biphenyl]-2-carboxylate (Clevidipine Impurity)1207068-15-2C15H14Cl2O3
3A-Amino-3A-deoxy-(2AS,3AS)-α-cyclodextrin121916-94-7C36H61NO29
2-Chloro-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-5-one1256811-82-1C7H5ClN2O
Ethyl 3-azabicyclo[3.1.0]hexane-6-carboxylate hydrochloride??3-??????[3.1.0]??-6-??????????1211510-15-4C8H14ClNO2
N-(3-Bromo-5-chloropyridin-2-yl)formamide1263214-75-0C6H4BrClN2O
(R)-4-(2-Fluorophenyl)-3,4-dihydronaphthalen-1(2H)-one1234356-88-7C16H13FO
tert-Butyl 2-(6-bromo-2-oxo-3,4-dihydroquinolin-1(2H)-yl)acetate1224927-63-2C15H18BrNO3
Ethyl 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclopropane-1-carboxylate1215107-29-1C12H21BO4
(2-Isobutoxypyridin-3-yl)boronic acid(2-????????-3-?)???1218790-95-4C9H14BNO3
N-Formyl-N-(2-oxo-2-(1-oxo-3,4-dihydroisoquinolin-2(1H)-yl)ethyl)cyclohexanecarboxamide (Praziquantel Impurity)125273-88-3C19H22N2O4
Bis(methylcyclopentadienyl)zirconium dichloride12109-71-6C12H14Cl2Zr
2,3-Difluoro-1,4-benzenediol2,3-?????-??????124728-90-1C6H4F2O2
3-Methanesulfonylpyrrolidine hydrochloride????,3-(?????)-,???(1:1)1215368-15-2C5H12ClNO2S
5-Bromo-2-ethoxy-3-methoxypyridine5-???-2-???-3-??????1241752-31-7C8H10BrNO2
4-Chloro-2-methyl-1,8-naphthyridine4-???-2-??-1,8-?????1221272-96-3C9H7ClN2
2-Iodo-1H-pyrrolo[3,2-c]pyridine2-???-5-????1227269-14-8C7H5IN2
Methyl 2-(azetidin-3-yl)acetate hydrochloride1229705-59-2C6H12ClNO2
3-Fluoro-5-(trifluoromethyl)picolinaldehyde3-????-5-(????????)???-2-??????1227499-98-0C7H3F4NO
2-Chloro-4-isopropoxypyrimidine????,2-???-4-(1-?????)-1250967-81-7C7H9ClN2O
9-([1,1'-Biphenyl]-3-yl)-3,6-dibromo-9H-carbazole1221237-88-2C24H15Br2N
2,5-Difluoroisophthalonitrile122546-74-1C8H2F2N2
3-(Bromomethyl)-7-methoxy-2H-benzo[b][1,4]oxazin-2-one124522-09-4C10H8BrNO3
2-Chloro-N-phenylaniline(2-???-??)-??-??1205-40-9C12H10ClN
3-(4-Chloro-phenyl)-pyrrolidine3-(4-?????)????120418-62-4C10H12ClN
Dichloro[rel-(1R,1'R)-(dimethylsilylene)bis[(1,2,3,3a,7a-η)-1H-inden-1-ylidene]]zirconiumrac-???????(1-???)??????????121009-93-6C20H18Cl2SiZr10*
(Z)-1-(4-(Difluoromethyl)phenyl)-5-methoxypentan-1-one O-(2-aminoethyl) oxime (Fluvoxamine Impurity)???????????1217214-94-2C15H22F2N2O2
(3-(Benzyloxy)-5-bromophenyl)boronic acid3-(????)-5-????????1256355-21-1C13H12BBrO3
2-Chloro-4-fluoro-3-methylbenzaldehyde2-???-4-????-3-????????1260764-27-9C8H6ClFO
(R)-1-(1H-benzo[d]imidazol-2-yl)-3-methylbutan-1-amine hydrochloride(R)-1-(1H-??????-2-?)-3-?????????1235643-62-5C12H18ClN3
(S,R(p),S(SPO)-1-Phenylphosphinoyl)-2-[1-(di-t-butylphosphino)ethyl]ferrocene(SP)-1-[(R)-1-(?-tert-??????)??]-2-[(R)-???????]???1221746-56-0C24H39FeOP2+
(1h-Pyrrolo[3,2-b]pyridin-6-yl)boronic acid1H-???[3,2-B]???-6-???1253911-17-9C7H7BN2O2
Benzyl 1-aminocyclobutanecarboxylate 4-methylbenzenesulfonate??1-a???????????????125483-57-0C12H15NO2
(R)-Benzyl tert-butyl (3-hydroxypropane-1,2-diyl)dicarbamate1263045-28-8C16H24N2O5
4-methoxy-2-nitroaniline (Pramipexole Impurity）1244656-98-1C20H32N6S2
Trimethoxy[(1,2,3,4,5-η)-1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl]titanium123927-75-3C10H15.C3H9O3Ti
3-((2,4-Dichlorobenzyl)oxy)pyrrolidine hydrochloride3-[(2,4-??????)??]???????1220033-11-3C11H14Cl3NO
6-Fluoro-2,2'-bipyridine6-????-2,2'-????1223063-81-7C10H7FN2
Methyl (S)-4-benzylmorpholine-3-carboxylate??(S)-4-??-3-???????????1235387-14-0C13H17NO3
Pentyl (1-((2R,3R,4S,5R)-4-(((2R,3R,4S,5R)-3,4-dihydroxy-5-methyltetrahydrofuran-2-yl)oxy)-3-hydroxy-5-methyltetrahydrofuran-2-yl)-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl)carbamate?????????USP1262133-68-5C20H30FN3O9
3,3'-Dihexyl-2,2'-bithiophene3,3'-???-2,2'-????125607-30-9C20H30S2
BMY 286746-?????????125481-61-0C21H31N5O3
Pyrethrin I????I121-21-1C21H28O3
(3-(4-Methylpiperazin-1-yl)phenyl)methanol3-(4-??????-1-?)??]???123987-13-3C12H18N2O
3-(Piperazin-1-yl)aniline hydrochloride3-????-1-YL-?????????125421-98-9C10H16ClN3
3-Bromo-5-chloro-1,6-naphthyridine3-???-5-???-1,6-?????1211588-58-7C8H4BrClN2
(5-(Pyrrolidin-1-yl)pyridin-3-yl)boronic acid5-(????-1-?)???-3-????1218790-56-7C9H13BN2O2
(3-Fluoro-2-(hydroxymethyl)phenyl)boronic acid3-????-2-(??????)?????1246633-55-5C7H8BFO3
tert-Butyl 3-oxa-7,9-diazabicyclo[3.3.1]nonane-9-carboxylate9-Boc-3-oxa-7,9-???????[3.3.1]??1251010-45-3C11H20N2O3
DTP26-2Sn1234499-56-9C22H37NS2Sn2
6-Amino-2-(trifluoromethyl)nicotinonitrile2-???-6-(????????)???-5-??????1233243-98-5C7H4F3N3
9-Bromonaphtho[2,1-b]benzofuran??[b]???[1,2-d]??,9-???-1256544-27-0C16H9BrO
5,7-Dibromo-2,3-dihydrobenzofuran5,7-????-2,3-?????????123266-59-1C8H6Br2O
Irinotecan Ep Impurity L1255644-71-3C33H38N4O6
((2S,5R)-5-(5-Methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2,5-dihydrofuran-2-yl)methyl benzoate (Stavudine Impurity)122567-97-9C17H16N2O5
6-Bromo-2-chloropyrido[2,3-d]pyrimidine1234616-65-9C7H3BrClN3
N-Boc-2-Amino-4-cyanothiazole(4-???-???-2-?)-????tert-??????1210278-19-5C9H11N3O2S
4-Amino-5-fluoro-2-methylpyridine4-???-5-????-2-?????1211590-22-5C6H7FN2
1-(2-Aminoethyl)-3-(5-bromoquinoxalin-6-yl)urea (Brimonidine Impurity)??????????1216379-05-3C11H12BrN5O
tert-Butyl 2-oxa-5-azaspiro[3.4]octane-5-carboxylate2-??-5-?????[3,4]??-5-?????tert-??????1245816-30-1C11H19NO3
(S)-3-((tert-Butoxycarbonyl)amino)-3-(6-methoxypyridin-3-yl)propanoic acidBOC-(S)-3-???-3-(6-???-3-???)-?????1217755-81-1C14H20N2O5
Methyl 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-6-carboxylate6-?????????-2-??????????1256359-21-3C16H20BNO4
2,3-Difluoro-4-nitrophenol2,3-?????-4-???-??123173-60-4C6H3F2NO3
tert-Butyl 3-(aminomethyl)-3-fluoropiperidine-1-carboxylate3-?????-3-????????-1-?????tert-??????1219832-36-6C11H21FN2O2
5-Fluoro-1H-pyrazolo[3,4-b]pyridine1256788-84-7C6H4FN3
Sunitinib Impurity G HCl (N,N-Didesethyl Sunitinib HCl)1217216-61-9C18H20ClFN4O2
Methyl N-methyl-N-(pyridin-2-yl)glycinate1250236-70-4C9H12N2O2
4-Bromo-5-chloro-2-methylpyridine4-BroMo-5-???-2-?????1211529-34-8C6H5BrClN
(S)-Cyclopropyl(4-methoxyphenyl)methanamine hydrochloride(S)-???????(4-?????)???????1213693-68-5C11H16ClNO
cis-tert-Butyl 4-oxohexahydropyrrolo[3,4-c]pyrrole-2(1H)-carboxylate1251003-89-0C11H18N2O3
4-Chloro-5,5-dimethyl-5H,6H,7H-pyrrolo[2,3-d]pyrimidin-6-one1226804-02-9C8H8ClN3O
(S)-1-(tert-Butoxycarbonyl)-2-(3-methylbenzyl)pyrrolidine-2-carboxylic acidBOC-(S)-??-(3-????)-???1217604-87-9C18H25NO4
21S-Argatroban21S-??????121785-72-6C23H36N6O5S
1-((9H-Carbazol-4-yl)oxy)-3-(isopropyl(2-(2-methoxyphenoxy)ethyl)amino)propan-2-ol (Carvedilol Impurity)N-??????????1246819-01-1C27H32N2O4
2,7-Diazaspiro[4.4]nonan-1-one2,7-??????[4.4]??-1-?1203796-97-7C7H12N2O
Benzyl 2,6-dimethyl-4-oxopiperidine-1-carboxylate??2,6-???-4-??????-1-??????(cis-?trans-????)1233932-12-1C15H19NO3
rel-1-(1,1-Dimethylethyl) (3R,4S)-4-(2-chlorophenyl)-1,3-pyrrolidinedicarboxylate???(+/-)1-[(TERT-BUTYL)OXYCARBONYL]-4-(2-?????)????-3-?????1212102-71-0C16H20ClNO4
(3-Bromo-5-(trifluoromethyl)pyridin-2-yl)methanol(3-broMo-5-(????????)???-2-?)???1227563-37-2C7H5BrF3NO
tert-Butyl N-[(3-methylpyrrolidin-3-yl)methyl]carbamate3-(boc-αMino??)-3-??-????125290-87-1C11H22N2O2
Tetrabutylphosphaniumfluoride???????????????121240-56-0C16H36FP
5-Bromo-2-(tert-Butoxy)pyrimidine5-???-2-(???-???)????121487-13-6C8H11BrN2O
[1,2,4]Triazolo[1,5-a]pyridine-5-carboxylic acid[1,2,4]?????[1,5-a]???-5-?????1234616-38-6C7H5N3O2
Acetylvardenafil???????????1261351-28-3C25H34N6O3
(2R,4R,Z)-2-(Carboxymethyl)-5-(2-hydroxyethylidene)-3-((2R,5R,Z)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carbonyl)oxazolidine-4-carboxylic acid (Clavulanic acid Impurity)???????????1260617-10-4C16H18N2O10
Ethyl 5-bromo-1H-pyrrolo[3,2-b]pyridine-2-carboxylate??5-??Mo-1H-???[3,2-b]???-2-???????1255098-82-8C10H9BrN2O2
5-Bromothieno[2,3-b]pyridine-2-carboxylic acid5-??????[2,3-b]???-2-?????1242336-81-7C8H4BrNO2S
m-PEG4-amino-Malm-PEG4-?1263044-81-0C16H26N2O7
((((((R)-1-(6-amino-9H-purin-9-yl)propan-2-yl)oxy)methyl)(((isopropoxycarbonyl)oxy)methoxy)phosphoryl)oxy)methyl diethylcarbamate (Tenofovir Impurity）1246812-23-6C21H34N5O9P
9-(4-Bromophenyl)-2-Phenyl-9H-carbazole9-(4-?????)-2-??-???1235563-74-2C24H16BrN
Fmoc-D-3-CarbamoylpheFMOC-D-3-?????1217637-40-5C25H22N2O5
methyl 6-chloro-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-8-carboxylate6-???-3,4-????-3-??-2H-1,4-????-8-???????????123040-75-5C10H8ClNO4
N-((6-Chloropyridin-3-yl)methyl)ethanamine120739-77-7C8H11ClN2
N-(2-bromo-5-methoxyphenyl)acetamide2'-???-5'-??????????123027-99-6C9H10BrNO2
4-Ethoxynicotinaldehyde4-??????????1220021-59-9C8H9NO2
C-(5-Methyl-[1,3,4]oxadiazol-2-yl)-methylamineC-(5-??-[1,3,4]?????-2-?)-????125295-22-9C4H7N3O
2-Benzyloxypyrimidine-5-boronic acid[2-(BENZYLOXY)PYRIMIDIN-5-YL]??1217500-86-1C11H11BN2O3
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