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

?? ?:Shanghai Haohong Scientific Co., Ltd.
??:400-400-8210725
???:malulu@leyan.com
??:China
URL: https://www.leyan.com/
? ?? ?:39988
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Erythromycin Ep Impurity N???????B3225-82-9C21H38O7
Avanafil Impurity 57??4-(3-???-4-????????)-2-(?????)????-5-???????372117-76-5C16H18ClN3O5S
(E)-4-Methoxy-6-(4-methoxystyryl)-5,6-dihydro-2H-pyran-2-one5,6-????????3328-60-7C15H16O4
(5-Chloro-2-methoxyphenyl)methanamine hydrochloride(5-???-2-?????)???????350480-55-6C8H11Cl2NO
6-Methoxy-2,3-dimethylquinoxalin-5-amine6-???-2,3-???????-5-??32387-83-0C11H13N3O
Ethyl 2-(methylamino)benzoate???,2-(?????)-,??????35472-56-1C10H13NO2
2-Chloro-N-(3-(trifluoromethyl)phenyl)acetamideN-(??????)-3-(????????)???351-38-2C9H7ClF3NO
Methyl 2-(2-fluoro-4-nitrophenyl)acetate??2-????-4-??????????337529-74-5C9H8FNO4
N-(2,3,4-trifluorophenyl)acetamideN-(2,3,4-????????)?????365-29-7C8H6F3NO
(3-Chloropropyl)diphenylsulfonium tetrafluoroborate(3-??????)????????????????33462-80-5C15H16BClF4S
3-Methylpentyl acetate3-?????????35897-13-3C8H16O2
1,1,1-Trimethylhydrazinium iodide 97%1,1,1-????????? ??????3288-80-0C3H11IN2
2-Chloro-6-methoxy-pyridine-4-carbaldehyde2-???-6-???-4-???????????329794-31-2C7H6ClNO2
3,4-Difluoro-2,5-bis(trimethylsilyl)thiophene3,4-?????-2,5-??(??????)???347838-12-4C10H18F2SSi2
Carnitine orotate3-????-2-????-N,N,N-????-1-??????1,2,3,6-??????-2,6-???-4-??????????32543-38-7C12H17N3O6
(2,4-Difluoro-5-nitrophenyl)boronic acid2,4-?????-5-????????325786-11-6C6H4BF2NO4
2,5-Dioxopyrrolidin-1-yl ((benzyloxy)carbonyl)-l-glutaminate34078-85-8C17H19N3O7
Methyl 2-(3-methoxyphenyl)-2-methylpropanoate2-(3-???-??)-2-??-???????????32454-33-4C12H16O3
7,8-Difluoroquinoline-3-carboxylic acid7,8-????????-3-?????318685-41-5C10H5F2NO2
1,5-Dibromo-2,4-bis(bromomethyl)benzene1,5-????-2,4-??-?????-??35510-03-3C8H6Br4
1-Iodopyrene1-?????34244-15-0C16H9I
2,5-Dioxopyrrolidin-1-yl o-benzyl-n-(tert-butoxycarbonyl)-l-threoninate32886-43-4C20H26N2O7
4-Nitrophenyl acetylglycinate3304-61-8C10H10N2O5
Boc-Tyr(Bzl)-OSu34805-19-1C25H28N2O7
2,4,8,10-Tetraoxa-3,9-dithiaspiro[5.5]undecane 3,9-dioxide2,4,8,10-?????-3,9-??????[5.5]???3,9-?????3670-93-7C5H8O6S2
2-Ethylhexanoic acid, molybdenum salt2-?????;????34041-09-3C8H16MoO2
Silver(I) (1E)-N,2-diphenyldiazene-1-carbohydrazonothioate36539-86-3C13H11AgN4S
4-Methyl-4-(trichloromethyl)cyclohexa-2,5-dien-1-one4-??-4-???????-2,5-????????-1-?3274-12-2C8H7Cl3O
2-Hydroxy-2,4-dimethylpentanoic acid2-????-2,4-???????3639-23-4C7H14O3
(2S,3S)-Pterosin C35938-43-3C14H18O3
6-(Bromomethyl)-1H-indazole hydrobromide6-?????-1h-????????????368426-63-5C8H8Br2N2
1-(3-Amino-2-chloropyridin-4-yl)ethan-1-one342899-35-8C7H7ClN2O
Sulfuric acid, zirconium salt hydrate34806-73-0H2O9S2Zr
4-(Hydrazinylmethyl)benzene-1,2,3-triol2,3,4-????????????,?????3614-72-0C7H10N2O3
4-Methoxy-3-nitropyridine hydrochloride31872-61-4C6H7ClN2O3
Ethyl 4,4,4-trichloroacetoacetate4,4,4-??????????????????3702-98-5C6H7Cl3O3
Cyclopentadienylniobium(V) tetrachloride???????????(V)????33114-15-7C5Cl4Nb
(1S,6R)-tert-Butyl 3,8-diazabicyclo[4.2.0]octane-3-carboxylatetert-??3,8-???????[4.2.0]??-3-???????370881-96-2C11H20N2O2
Ethyl 4-(trifluoromethyl)-1H-indole-2-carboxylate??4-??????????-2-???????317-60-2C12H10F3NO2
N,N-diallylnicotinamideN,N-??????????349096-77-1C12H14N2O
Methyl 3-(3-(tert-butyl)-4-hydroxyphenyl)propanoate??3-(3-tert-??-4-??????)???????36837-50-0C14H20O3
(2-Ethyl-4-methoxyphenyl)boronic acid(2-??-4-?????)???342899-07-4C9H13BO3
Chloro(hexyl)dimethylsilane??????????3634-59-1C8H19ClSi
1-(4-Bromophenyl)-2-hydroxyethan-1-one1-(4-?????)-2-??????-1-?3343-45-1C8H7BrO2
Fosaprepitant Impurity 5327623-35-8C21H19F6NO3
(4-Isopropoxy-2-(trifluoromethyl)phenyl)boronic acid313545-40-3C10H12BF3O3
Isoniazid Impurity E31599-25-4C12H10N6
3,3',4,4',5,5'-Hexachloro-1,1'-biphenyl32774-16-6C12H4Cl6
N-(tert-Butyl)-3-methylpicolinamideNT-??-3-?????-2-??????32998-95-1C11H16N2O
4-Fluorothiophene-2-carboxylic acid2-????????,4-????-32431-72-4C5H3FO2S
Chloromethyl p-tolyl sulfide?????P-?????34125-84-3C8H9ClS
3'-UMP (disodium)35170-03-7C9H14N2NaO9P
Hydroxy Varenicline??????????357424-21-6C13H13N3O
(2Z,4Z,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoic acid (Tretinoin Impurity)11-??,13-??-3555-80-4C20H28O2
8-Methoxy-1,2,3,4-tetrahydronaphthalene-2-carboxylic acid8-???-1,2,3,4-??????????-2-?????32178-63-5C12H14O3
Phthalohydrazide1,2-??????????????3645-45-2C8H10N4O2
4-Ethoxypyridine33399-46-1C7H9NO
Thallium(I) cyclopentadienide 97%34822-90-7C5Tl
2-(Dimethylvinylsilyl)pyridine321155-39-9C9H13NSi
1,2-bis(4-fluorophenyl)diazene (Cabozantinib Impurity）332-07-0C12H8F2N2
1-Phenylethyl butyrate3460-44-4C12H16O2
1-Fluoro-4-phenoxybenzene4-??????????330-84-7C12H9FO
1,5-Dioxepan-2-one1,5-????-2-?35438-57-4C5H8O3
3,3-Dimethylpyrrolidine3,3-???????3437-30-7C6H13N
8-Benzyl-2,8-diazaspiro[4.5]decane8-??-2,8-???-???[4.5]??336191-15-2C15H22N2
8-Methoxy-1,2,3,4-tetrahydroisoquinoline34146-68-4C10H13NO
2,3-Dichloropyrido[3,4-b]pyrazine2,3-???????[3,4-b]???35251-99-1C7H3Cl2N3
(5-Bromo-2-chlorophenyl)(4-methoxyphenyl)methanone(5-broMo-2-???-??)-(4-???-??)-???333361-49-2C14H10BrClO2
(R)-3-Aminohex-5-enoic acid hydrochloride(R)-3-???-5-???-HCl332064-79-6C6H12ClNO2
Itopride Impurity G??????,4-[2-(??????)???]-,oxiMe3421-72-5C11H16N2O2
Benzhydryl 2-chloroethyl ether????B-????????32669-06-0C15H15ClO
2,5-Dibromohexanedioic acid2,5-????????3479-85-4C6H8Br2O4
1-(2,4,5-trimethoxybenzyl)piperazine (Trimetazidine Impurity）1-(2,4,5-?????-??)-????356083-64-2C14H22N2O3
7-Chlorobenzofuran-3-one5,7-?????-????-3-?3260-94-4C8H5ClO2
2-(5-Fluoro-2-nitrophenyl)acetonitrile5-FLUORO-2-???????????3456-75-5C8H5FN2O2
Bis(chloromethyl)sulfane??(?????)???3592-44-7C2H4Cl2S
Ethyl cyclopentyl(oxo)acetate????????(??)?????33537-18-7C9H14O3
Perylene-3-carbaldehyde3-???????????35438-63-2C21H12O
Fosaprepitant Impurity 6327623-34-7C21H19F6NO3
2-Propylhexanoic acid2-????????3274-28-0C9H18O2
(Tert-butoxycarbonylmethyl)triphenylphosphoniumchloride(tert-?????????)?????????????35000-37-4C24H26ClO2P
1-(2,2-Diethoxyethyl)piperidineN-(2,2-??????)????3616-58-8C11H23NO2
4-((4-(Hexyloxy)benzylidene)amino)benzonitrile35280-78-5C20H22N2O
(S)-2-acetamido-N-(4-methyl-2-oxo-2H-chromen-7-yl)propanamide355137-87-0C15H16N2O4
(2-Mercaptophenyl)boronic acid352526-00-2C6H7BO2S
4-Bromo-2,3,5,6-tetrafluoropyridine3511-90-8C5BrF4N
leucylvaline35436-83-0C11H22N2O3
3-(4-Methylphenyl)-1-phenylpyrazole-4-carbaldehyde1-??-3-P-??-1H-???-4-??????36640-52-5C17H14N2O
2,2,4,4,6-Pentafluoro-6-phenoxy-1,3,5,2lambda5,4lambda5,6lambda5-triazatriphosphinine1,3,5,2,4,6-??????????,2,2,4,4,6-??????-2,2,4,4,6,6-?????-6-???-33027-68-8C6H5F5N3OP3
2-(Propylamino)-N-(p-tolyl)propanamide hydrochloride35891-99-7C13H21ClN2O
Butylphosphonic acid1-??????3321-64-0C4H11O3P
1-Benzyl-3-methylpiperazine1-??-3-??????3138-90-7C12H18N2
7-Methoxy-1,2,3,4-tetrahydronaphthalen-1-ol1-?????-7-???-1,2,3,4-???????????32820-10-3C11H14O2
2-((8S,9R,10S,11S,13S,14S,16R,17R)-9-Chloro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl methanesulfonate (Mometasone Furoate Impurity)IcoMethasone21-?????352315-75-4C23H31ClO7S
4-Nitroisoquinoline36073-93-5C9H6N2O2
3-(4-Fluorophenyl)pentanedioic acid3-(4-??????)?????3449-63-6C11H11FO4
2-Amino-2-(naphthalen-2-yl)acetic acid???-????-2-?-????33741-78-5C12H11NO2
5,6-Dimethylpyrimidin-4-ol5,6-???-????-4-OL34916-78-4C6H8N2O
3,3,4,4-Tetramethylpyrrolidine-2,5-dione3,3,4,4-??????????3566-61-8C8H13NO2
Tert-butyl 2,3,6,7-tetrahydro-1H-azepine-1-carboxylate(Z)-tert-??2,3,6,7-?????????-1-???????317336-73-5C11H19NO2
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