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J & K SCIENTIFIC LTD.??? ?? ??? ?????.

?? ?:J & K SCIENTIFIC LTD.
??:-18210857532
???:jkinfo@jkchemical.com
??:China
URL: https://www.jkchemical.com
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β-Carotene, 97%??-???7235-40-7C40H56
Boc-D-Phe(4-NH2)-OH164332-89-2C14H20N2O4
DiphenyliodoniuM hexafluorophosphate58109-40-3C12H10F6IP
Trimethylsilyl 2,2-difluoro-2-(fluorosulfonyl)acetate, 90%??????2-(???????)??????????120801-75-4C5H9F3O4SSi
Malonamide, 98%??????108-13-4C3H6N2O2
Propofol-D-glucuronide, 98%???????????114991-26-3C18H26O7
Europium ingot (99.9% REO)???7440-53-1Eu
Cobalt(II) bromide hydrate???(II) ????? ??????85017-77-2Br2CoH2O
2,3-Dimethylbenzoic acid, 98%603-79-2C9H10O2
1H-Imidazole-4,5-dicarboxylic acid dimethyl ester, 98%???4,5-????????????3304-70-9C7H8N2O4
2-Amino-4-chloropyrimidine, 98%3993-78-0C4H4ClN3
2-isobutyrylguanosine'>2'-Deoxy-N2-isobutyrylguanosine68892-42-2C14H19N5O5
3-BroMo-2,5-dichloropyridine138006-41-4C5H2BrCl2N
1-EthylpyrroleN-????617-92-5C6H9N
Pentafluorophenyl pyrimidine-5-carboxylate 97%????????????-5-???????921938-48-9C11H3F5N2O2
5-(3-Methoxycarbonylphenyl)-picolinic acid5-(2-???-??)-????566198-33-2C13H9NO3
5-Fluoro-1H-indole-2-boronic acid, N-BOC protected 95%1-Boc-5-??????-2-???352359-23-0C13H15BFNO4
Boc-beta-(3-benzothienyl)-L-alanineBOC-L-3-????????154902-51-9C16H19NO4S
2-BroMo-4,6-dinitroaniline2-???-4,6-????????1817-73-8C6H4BrN3O4
N-Fluoro-4-methylpyridinium-2-sulphonate147540-88-3C6H6FNO3S
Diethylaminoacetaldehyde diethyl acetal, 99%2,2-??????????3616-57-7C10H23NO2
3-Bromo-1H-1,2,4-triazole3-???-1H-1,2,4-????7343-33-1C2H2BrN3
Isopropyl-hydrazine1-??????????2257-52-5C3H10N2
2-(1H-imidazol-1-yl)acetohydrazide(SALTDATA: HCl)2-(1H-????-1-?)????????(SALTDATA:HCl)56563-00-9C5H8N4O
3-[(3-chlorobenzyl)oxy]benzaldehyde(SALTDATA: FREE)3-[(3-?????)??]??????168084-95-5C14H11ClO2
4-Methoxycarbonyl-2-nitrophenylboronic acid4-???????-2-????????85107-55-7C8H8BNO6
Nalpha-(tert-Butoxycarbonyl)-L-tryptophan N-SucciniMidyl Ester3392-11-8C20H23N3O6
1-(4-Phenyl-1,3-thiazol-2-yl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid159885-80-0C14H8F3N3O2S
1-(4-Amino-3-methylphenyl)-3-pyrrolidinol1-(4-???-3-????)-3-?????143525-67-1C11H16N2O
1-(4-Cyanophenyl)-4-piperidinecarbohydrazide, 97%1-(4-?????)-4-????????????352018-91-8C13H16N4O
Trimethyl stannyl dimethyl phenyl silane??????????????94397-44-1C11H20SiSn
2-(1-propylpiperidin-4-yl)ethanamine(SALTDATA: FREE)915922-52-0C10H22N2
2-Aminomethyl-1-N-Fmoc-piperidine hydrochloride2-?????-1-N-FMOC-?????????????669713-55-7C21H24N2O2.ClH
(4-Fluoro-phenyl)-piperidin-4-yl-methanol(4-????-??)-????-4-?-???54924-33-3C12H16FNO
9,10-Phenanthrenequinone, 98%??????84-11-7C14H8O2
Triruthenium dodecacarbonyl, 99%??? ???15243-33-1C12O12Ru3
1-Iodohexadecane, 98%, stabilized with copper1-?????????544-77-4C16H33I
2,5-Dimethylthiophenol, 99%2,5-???????4001-61-0C8H10S
4-Amino-5,8-difluoro-2-methyl-quinoline4-???-5,8-?????-2-??-???288151-30-4C10H8F2N2
4-amino-3-quinolinecarboxylic acid(SALTDATA: FREE)68313-46-2C10H8N2O2
4-ForMylpyrrole-2-carboxylic acid Methyl ester1H-??-2-?????,4-???-,??????(9CI)40611-79-8C7H7NO3
(imidazo[1,2-a]pyridin-3-ylmethyl)amine(SALTDATA: 2HCl)C-????[1,2-A]???-3-YL-????160771-89-1C8H9N3
3-(N,N-DiMethylaMinosulfonyl)phenylboronic acid pinacol ester3-(N,N-?????????)????????????486422-05-3C14H22BNO4S
2-Chloro-5-iodobenzotrifluoride260355-20-2C7H3ClF3I
1-Chloro-6-iodoperfluorohexane1-???-6-??????????16486-97-8C6ClF12I
3-Iodo-1-propanol3-???????627-32-7C3H7IO
DL-?-(4-Benzyloxyphenyl)alaninol3-(4-??????)-DL-??-????182057-85-8C16H19NO2
2,5-Difluorophenol, 97%2713-31-7C6H4F2O
1-(Bromomethyl)-2-(phenoxymethyl)benzene, 97%1-(?????)-2-(?????)??861319-72-4C14H13BrO
4-Methyl-3,4-dihydro-2H-1,4-benzoxazine-7-carbaldehyde, 97%141103-93-7C10H11NO2
Ethyl 4-[(2-ethoxy-2-oxoethyl)thio]butanoate, 97%??4-[(2-ETHOXY-2-OXOETHYL)THIO]??????63449-37-6C10H18O4S
2-[(4-bromobenzyl)thio]ethanol(SALTDATA: FREE)518316-24-0C9H11BrOS
5-(Diethylcarbamoyl)-2-fluorobenzeneboronic acid 98%5-(????????)-2-?????????874289-47-1C11H15BFNO3
N-methyl-3-piperidin-1-ylpropan-1-amine(SALTDATA: FREE)??-(3-????-1-?-???)-??86010-41-5C9H20N2
2-Methylthio-4,6-pyrimidinedione, 98%1979-98-2C5H6N2O2S
3-Nitrophthalonitrile, 99%51762-67-5C8H3N3O2
4-Cholesten-3-one, 95%4-????-3-?601-57-0C27H44O
1-(2,4,5-Trimethylphenyl)ethanone2040-07-5C11H14O
Meta-Topolin??-???(mT)75737-38-1C12H11N5O
(5-methyl-1,3-oxazol-4-yl)methanol(SALTDATA: FREE)(5-??-1,3-???-4-?)???(?????:??)874821-67-7C5H7NO2
3-(4-fluorophenyl)-1-methyl-1H-pyrazol-5-amine(SALTDATA: FREE)126417-81-0C10H10FN3
N,N'-Diacetylglycine Anhydride3027-05-2C8H10N2O4
6-(tert-Butyl)-2H-1,4-benzoxazin-3(4H)-one6238-96-6C12H15NO2
2'-Fluorobiphenyl-3-carboxylic acid2'-???????-3-?????103978-23-0C13H9FO2
Ethyl alpha-bromophenylacetate, 97%2882-19-1C10H11BrO2
2,4,6-Trimethoxynitrobenzene 98%1,3,5-?????-2-?????14227-18-0C9H11NO5
2,4,4-TriMethyl-1-hexene2,4,4-????-1-??51174-12-0C9H18
3-methyl-2-(2-methylphenoxy)butanoic acid(SALTDATA: FREE)3-??-2-(2-?????)???63403-13-4C12H16O3
2-(Chloromethyl)naphthalene2506-41-4C11H9Cl
3-Ethylpiperazine, N1-BOC protectedN-Boc-3-??????438049-35-5C11H22N2O2
SEW 2871256414-75-2C20H10F6N2OS
Pyridine-2-carboxylic Acid Hydrochloride???????636-80-6C6H6ClNO2
2-methyl-3-(1-pyrrolidinylcarbonyl)aniline(SALTDATA: FREE)2-??-3-(1-????????)???926195-24-6C12H16N2O
5-(acetylamino)-2-(2,5-dimethyl-1H-pyrrol-1-yl)benzoic acid(SALTDATA: FREE)332898-63-2C15H16N2O3
3-(5-methyl-1,2,4-oxadiazol-3-yl)benzaldehyde(SALTDATA: FREE)3-(5-??-1,2,4-?????-3-?)??????852180-68-8C10H8N2O2
2-(1H-indol-3-yl)-N-(4-methylbenzyl)ethanamine(SALTDATA: HBr)202199-04-0C18H20N2
2,2,3,3,3-Pentafluoropropyl iodide 97%1-???-2,2,3,3,3-?????????354-69-8C3H2F5I
2-BroMo-N-(p-toluenesulfonyl)pyrrole290306-56-8C11H10BrNO2S
NoMega-(2-AcetaMido-3,4,6-tri-O-benzyl-2-deoxy-beta-D-glucopyranosyl)-Nalpha-(tert-butoxycarbonyl)-L-asparagine Benzyl Ester219968-28-2C45H53N3O10
(Z)-2-Chloro-2-butene(Z)-2-???-2-??2211-69-0C4H7Cl
1-Fluoro-2,4,6-triMethylpyridiniuM Tetrafluoroborate [Fluorinating Reagent]109705-14-8C8H11BF5N
2-Chloro-5-nitrophenol2-???-5-?????619-10-3C6H4ClNO3
4-DiMethylaMino-1-butanol13330-96-6C6H15NO
Oxalyl dihydrazide, 98%?????????996-98-5C2H6N4O2
Di-t-butyltin dichloride, 98%19429-30-2C8H18Cl2Sn
2,4-Dimethyl-3-pentanol, 97%???l(2,4)-3-???600-36-2C7H16O
(3-Methacryloyloxypropyl)trichlorosilane, 90%7351-61-3C7H11Cl3O2Si
2,3,5,6-Tetrafluorobenzotrifluoride, 97%651-80-9C7HF7
1-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-N-methylmethanamine(SALTDATA: FREE)890325-34-5C11H13N3O2
1-Allylpiperazine13961-36-9C7H14N2
Vinyloctyldichlorosilane211985-85-2C10H20Cl2Si
4-Nitrobutyric Acid Methyl Ester13013-02-0C5H9NO4
3-Methylthio-2-butanone3-????-2-???53475-15-3C5H10OS
1-(pyridin-3-ylmethyl)-1H-pyrrole-2-carbaldehyde(SALTDATA: FREE)1-???-3-???-1H-??-2-??????186801-36-5C11H10N2O
Isoxanthopterin529-69-1C6H5N5O2
Methyl 5-fluorobenzo[b]thiophene-2-carboxylate5-FLUORO-BENZO[B]???-2-??????????154630-32-7C10H7FO2S
2-Pyrrolidin-1-yl-propionic acid2-PYRROLIDIN-1-YL-?????123912-78-7C7H13NO2
6-Chloro-2-methyl-4-pyrimidinol17551-52-9C5H5ClN2O
1,2-Butanediol????(1,2)584-03-2C4H10O2
1,2-Epoxy-1H,1H,2H,3H,3H-heptadecafluoroundecane, 96%3-(?????-n-??)???????38565-53-6C11H5F17O
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