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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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6-Chloro-3-nitropicolinamide6-???-3-??????-2-??????171178-21-5C6H4ClN3O3
H-Phe(3,4-DiCl)-OMe.HCl3,4-????-L-???????????173522-95-7C10H11Cl2NO2?HCl
4,4',4'',4'''-([2,2'-Bi(1,3-dithiolylidene)]-4,4',5,5'-tetrayl)tetrabenzaldehyde1639134-02-3C34H20O4S4
4-Chloro-2-(methylthio)thieno[3,2-d]pyrimidine176530-47-5C7H5ClN2S2
(R)-5-(Aminomethyl)pyrrolidin-2-one(R)-5-?????-????-2-?173336-98-6C5H10N2O
3,3'-Dimethyl-2,2'-bipyridine3,3'-DIMETHYL-2,2'-????1762-32-9C12H12N2
Meropenem Ep Impurity B166901-45-7C34H50N6O10S2
Calcium methacrylate hydrate16809-88-4C8H10CaO4
Bilastine Impurity 151638785-23-5C28H37N3O4
1,1-Dimethylethyl 7-formyl-2,3-dihydro-1H-indole-1-carboxylate174539-67-4C14H17NO3
4,4′-(21H,23H-Porphine-5,15-diyl)bis[benzoic acid]167777-26-6C34H22N4O4
8-Chloro-2-(methylthio)pyrimido[5,4-d]pyrimidine176637-10-8C7H5ClN4S
Gadobutrol Impurity 37170454-90-7C10H22N4O2
2-Azidoethyl β-D-glucopyranoside165331-08-8C8H15N3O6
Dimethyl 2-(2-(2-amino-6-chloro-9H-purin-9-yl)ethyl)malonate[2-(2-???-6-???-9H-??-9-?)??]????????????172529-93-0C12H14ClN5O4
N1-Benzylbenzene-1,4-diamine17272-83-2C13H14N2
(2R,2'R,4S,4'S)-2,2'-((1R,4R,7R,10R,13R)-1-Amino-14-(((2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-yl)amino)-1,7,13-tris(4-hydroxyphenyl)-2,5,8,11,14-pentaoxo-3,6,9,12-tetraazatetradecane-4,10-diyl)bis(5,5-dimethylthiazolidine-4-carboxylic acid) (Amoxicillin Impurity)174391-69-6C48H57N9O15S3
Benzo[b]thiophene-2-carboxylic hydrazide??[B]???-2-???????????175135-07-6C9H8N2OS
2-((Dimethylamino)methylene)malononitrile16849-88-0C6H7N3
(R)-4-Methylpentan-2-ol(R)-(-)-4-??-2-???16404-54-9C6H14O
1,3-Dimethoxypropane1,3-???????17081-21-9C5H12O2
2-Methyl-2-(morpholin-4-yl)propan-1-amine2-??-2-???-4-?-?????173336-43-1C8H18N2O
L-Alanine 4-nitroanilide1668-13-9C9H11N3O3
Azido-PEG10-acid1644163-57-4C23H45N3O12
Decyl α-D-maltopyranoside168037-12-5C22H42O11
(8S,10S,13S,14S,17S)-17-Acetyl-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3(2H)-one (Progesterone Impurity)4,9(11)-??????-3,20-??17652-16-3C21H28O2
8-Isopropyl-8-methyl-3-((2-phenylacryloyl)oxy)-8-azabicyclo[3.2.1]octan-8-ium bromide (Ipratropium Bromide Impurity)17812-46-3C20H29Br2NO3
6-Methoxy-1,2,3,4-tetrahydronaphthalene6-???-1,2,3,4-???????????1730-48-9C11H14O
Prednisolone sodium succinate1715-33-9C25H31O8.Na
2-Methyl-5-(trifluoromethyl)furan2-??-5-(????????)??17515-75-2C6H5F3O
Ethyl 4-(pyridin-4-yl)-1H-pyrrole-3-carboxylate??4-???-4-YL-1H-??-3-??????197774-66-6C12H12N2O2
6-(4-(tert-Butoxycarbonyl)piperazin-1-yl)nicotinic acid4-(5-????-???-2-?)-????-1-?????tert-??????201809-22-5C15H21N3O4
(s)-5-(Benzyloxy)-2-((tert-butoxycarbonyl)(methyl)amino)-5-oxopentanoic acid200615-91-4C18H25NO6
CLA19953-58-3C13H11N3O
Fmoc-cysteinol(acm)198543-46-3C21H24N2O4S
2-Naphthalen-2-yl-ethylamine2-????-2-YL-????2017-68-7C12H13N
Methyl (s)-2-(1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl)acetate200880-31-5C18H23NO3
(S)-3-((acetamidomethyl)thio)-2-((tert-butoxycarbonyl)amino)-3-methylbutanoic acidBOC-D-?(ACM)-OH201421-14-9C13H24N2O5S
3-Formyl-piperidine-1-carboxylic acid benzyl ester3-???-????-1-???????????201478-72-0C14H17NO3
2,2-Dimethyl-1H-indene-1,3(2H)-dione17190-77-1C11H10O2
2,2',2'',2''',2'''',2'''''-((8-(Piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,4,6-triyl)tris(azanetriyl))hexaethanol (Dipyridamole Impurity)???????(??????)16908-47-7C23H40N8O6
Isopropyl 4,4,4-trifluoroacetoacetate?????4,4,4-??????????????175230-50-9C7H9F3O3
4,4'-(Ethane-1,1-diyl)bis(1,2-dimethylbenzene)1,1-??(3,4-?????)??1742-14-9C18H22
(S)-N'-(2-(benzyloxy)propylidene)formohydrazide(S)-[2-(????)?????]????????????170985-84-9C11H14N2O2
4-Methoxyphenyl 2,3,4,6-Tetra-O-acetyl-α-D-mannopyranoside17042-40-9C21H26O11
Morpholine-4-carboximidamide17238-66-3C5H11N3O
Nonanoic anhydride1680-36-0C18H34O3
Dihydro Silodosin175870-21-0C25H30F3N3O4
2-Acetamido-4,6-O-benzylidene-2-deoxy-β-D-glucopyranosyl Azide168397-51-1C15H18N4O5
(Dichloro-1,3-thiazol-5-yl)methanol2,4-????-5-??????170232-69-6C4H3Cl2NOS
N-AcetoacetylmorpholineN-??????????16695-54-8C8H13NO3
4-(tert-butyl)-N-(6-hydroxy-5-(2-methoxyphenoxy)-[2,2'-bipyrimidin]-4-yl)benzenesulfonamide174227-14-6C25H25N5O5S
2-(4-Fluorophenyl)-5-(2-methylbenzyl)thiophene2005454-69-1C18H15FS
tert-Butyl 3-cyano-4-hydroxypyrrolidine-1-carboxylate3-???-4-????????-1-?????TERT-??????197143-33-2C10H16N2O3
Hept-5-yn-3-ol5-??-3-OL19781-82-9C7H12O
Peramivir Impurity 91988779-13-0C18H34N2O5
Methyl 4-aminooxane-4-carboxylate hydrochloride4-???????????-4-??????????????199330-66-0C7H14ClNO3
N2,N6-bis(tert-butoxycarbonyl)-L-lysyl-L-proline198475-99-9C21H37N3O7
N-hexadecyl-N,N-dimethylhexadecan-1-aminium chloride?????????????1812-53-9C34H72ClN
Ytterbium(III)chloride hydrate19423-87-1Cl3H2OYb
1,2-Dioctanoyl-sn-glycero-3-phosphocholineL-A-???????,?????19191-91-4C24H48NO8P
Decylcyclohexane1-???????1795-16-0C16H32
4-(1H-Pyrazol-1-yl)benzenesulfonyl chloride4-(1H-???-1-?)??????????18336-39-5C9H7ClN2O2S
1-Butyl-N,N,1,1-tetramethylsilanamine181231-67-4C8H21NSi
(R)-2-(4-(2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl)benzamido)pentanedioic acid (Pemetrexed Impurity）182009-04-7C20H21N5O6
Bis(hexafluoroacetylacetonato)magnesium??(???????????????)????19648-85-2C10H2F12MgO4
1,1,3,3,5,5,7,7,9,9,11,11,13,13-Tetradecamethylheptasiloxane19095-23-9C14H44O6Si7
Methyl quinoxaline-2-carboxylate2-???????????????1865-11-8C10H8N2O2
4,4'-Diisopropylbiphenyl4,4'-?????????18970-30-4C18H22
Propionylcholine (p-toluenesulfonate)???????P-??????1866-13-3C15H25NO5S
(R)-4,5-Diamino-5-oxopentanoic acidD-???????-??????19522-40-8C5H10N2O3
Hexyl (E)-but-2-enoate19089-92-0C10H18O2
5,10,15,20-Tetra(4-methylphenyl)-21h,23h-porphine copper??-?????????-Cu(II)19414-66-5C48H36CuN4
O-(4-fluorobenzyl)hydroxylamine1782-40-7C7H8FNO
Desmethyl erlotinib acetate??????????????183320-15-2C23H23N3O5
2-(Acetylamino)-6-[[[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]amino]carbonyl]benzoic acid (Apremilast Impurity)1809170-71-5C22H26N2O8S
(2R,3S)-1-(((9H-fluoren-9-yl)methoxy)carbonyl)-3-phenylpyrrolidine-2-carboxylic acid181824-45-3C26H23NO4
(S)-1-Cyclopropylethanamine(S)-1-???????????195604-39-8C5H11N
Pentadecan-8-amine????-8-aMine18618-64-9C15H33N
2,4-Dimethyl-1-heptene2,4-???-1-??19549-87-2C9H18
3-Chloro-2-fluoro-6-(trifluoromethyl)benzaldehyde3-???-2-????-6-(????????)??????186517-29-3C8H3ClF4O
6-Hydroxy-4-thiocarboxy-6-thioxohexanoic acid2-???????????(CETSA)19343-85-2C7H10O6S
(11-Bromoundecyl)trimethoxysilane17947-99-8C14H31BrO3Si
Etoricoxib Impurity 361798110-01-6C13H17NO4S
Benzyl bis(2-bromoethyl)carbamateN-Cbz-N,N-??(2-?????)??189323-09-9C12H15Br2NO2
(E)-Non-3-en-2-one18402-83-0C9H16O
5-Bromo-4-methylthiophene-2-carbaldehyde2-???-3-??-5-??????189331-47-3C6H5BrOS
(S)-2-Formamidosuccinic acid19427-28-2C5H7NO5
N-(4-Hydroxyphenyl)methacrylamideN-(4-???????)???????19243-95-9C10H11NO2
But-2-ene-1,4-diyl diacetate2-??-1,4-????????18621-75-5C8H12O4
1,1'-(Piperazine-1,4-diyl)diethanone????,1,4-????-(6CI,8CI,9CI)18940-57-3C8H14N2O2
2-Fluoro-3-nitro-5-methylpyridine19346-44-2C6H5FN2O2
N-(3-(Diethylamino)-4-methoxyphenyl)acetamide19433-93-3C13H20N2O2
2-(Chloromethyl)tetrahydro-2H-pyran18420-41-2C6H11ClO
Amikacin Impurity 111793053-90-3C16H32N4O9
2-Nitro-5-(trifluoromethoxy)benzoic acid2-???-5-(?????????)???189359-65-7C8H4F3NO5
3-(Piperidin-4-yl)propionic acid3-????-4-?-?????1822-32-8C8H15NO2
Triethoxy(p-tolyl)silane18412-57-2C13H22O3Si
4-chloro-6,7-bis(2-chloroethoxy)quinazoline (Erlotinib Impurity）4-???-6,7-??-(2-??????)????183322-21-6C12H11Cl3N2O2
(R)-2-((6-(3-aminopiperidin-1-yl)-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)-4-fluorobenzamide (Trelagliptin Impurity）1938080-44-4C18H22FN5O3
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