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

?? ?:J & K SCIENTIFIC LTD.
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???:jkinfo@jkchemical.com
??:China
URL: www.jkchemical.com
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4-Chloro-5,6-dimethylthieno[2,3-d]pyrimidine, 97%108831-68-1C8H7ClN2S
(S)-(-)-N-Benzyl-1-phenylethylamine, 98%(S)-(-)-N-??-1-??????17480-69-2C15H17N
2,2'-Dinitrobiphenyl2,2'-??????????2436-96-6C12H8N2O4
Ethyl propionylacetate, 98%4949-44-4C7H12O3
1-Pyrenecarboxylic acid, 97%1-???????19694-02-1C17H10O2
N-PhenylMethanesulfonaMide1197-22-4C7H9NO2S
2'-BroMo-4'-fluoroacetophenone1006-39-9C8H6BrFO
2,2'-Methylenebis[6-(1-Methylcyclohexyl)-p-cresol]77-62-3C29H40O2
1-Aza-12-crown 4-Ether41775-76-2C8H17NO3
Tropolone Tosylate?????????38768-08-0C14H12O4S
Isobutyl isovalerate, 98%589-59-3C9H18O2
Methanesulfonic acid sodium salt, 98%??????, ??? ?2386-57-4CH3NaO3S
3-Amino-2,2,5,5-tetramethyl-1-pyrrolidinyloxy, 99%3-???-2,2,5,5-?????-1-???????34272-83-8C8H17N2O*
3,4,5-Trimethoxyphenylacetonitrile, 97%3,4,5-?????????????13338-63-1C11H13NO3
(2R)-(-)-Glycidyl tosylate, 99%, ee: 99%113826-06-5C10H12O4S
1-Naphthoxyacetic acid2976-75-2C12H10O3
4-BroMo-2-fluorobenzyl Chloride4-???-2-?????????85510-82-3C7H5BrClF
(1E)-1-tert-Butoxy-1-(triMethylsilyloxy)propene(1E)-1-tert-???-1-(????????)???72658-10-7C10H22O2Si
5-Bromo-3-ethyl-2-oxindole5-???-3-??-1,3-?????-??-2-?304876-05-9C10H10BrNO
3-Methyl-2-thienylMagnesiuM broMide, 0.5?M solution in THF, J&KSeal3-??-2-??????????95184-07-9C5H5BrMgS
3'-(Trifluoromethyl)-[1,1'-biphenyl]-2-carboxylic acid3'-(????????)[1,1'-????]-2-?????408367-99-7C14H9F3O2
4-Boronobenzenesulphonic acid 98%4-???????913836-00-7C6H7BO5S
Sodium trifluoromethanesulfonate, 98%??????????? ???2926-30-9CF3NaO3S
2-Methyl-6-nitrobenzoic anhydride, 98%2-??-6-?????????434935-69-0C16H12N2O7
Ethyl (E)-3-(2-pyridinyl)-2-propenoate2-????,3-(4-????)-,??????24489-96-1C10H11NO2
Vinyldiphenylphosphine, min. 97%2155-96-6C14H13P
4-Methyl-5-thiazolylethyl acetate, 99%656-53-1C8H11NO2S
3-(Trifluoromethoxy)benzylamine, 98%3-(?????????)????93071-75-1C8H8F3NO
Zinc(II) DibenzyldithiocarbaMate14726-36-4C30H32N2S4Zn
2-Methyl-6-methoxypyridine-3-boronic acid, 97%459856-12-3C7H10BNO3
4-Fluoro-3'-iododiphenyl ether4-????-3'-?????????188534-09-0C12H8FIO
Dibutyldichlorosilane3449-28-3C8H18Cl2Si
3-chloro-N-(5-chloro-2-pyridinyl)propanamide(SALTDATA: FREE)3-???-N-(5-???-2-????)??????349124-70-5C8H8Cl2N2O
4-Chloro-1-methyl-1H-pyrazole-3-carbaldehyde, 95%4-???-1-??-1H-???-3-??????175204-81-6C5H5ClN2O
1H-indazole-5-carbaldehyde, 95%1H-???-5-??????253801-04-6C8H6N2O
(2-Boc-amino-ethoxy)-acetic acid????,[2-[[(1,1-??????)????]???]???]-(9CI)142929-49-5C9H17NO5
Aluminium nickel, Al/Ni 50/5012635-29-9AlNi
5-bromo-2-methyl-2H-indazole, 95%5-???-2-??-2H-INDAZOLE465529-56-0C8H7BrN2
4-Fluoro-N-isopropylbenzamide4-????-N-??????????70001-45-5C10H12FNO
tert-Butyl (3-allyl-4-methoxypyridin-2-yl)-carbamatetert-??(3-??-4-??????-2-?)-?????1261365-49-4C14H20N2O3
[(1-ethyl-1H-indol-3-yl)thio]acetic acid(SALTDATA: FREE)(1-ETHYL-1H-INDOL-3-YLSULFANYL)-????883539-49-9C12H13NO2S
N-(4-Piperidyl)-3-trifluoromethylsulfonylanilineN-[3-[(????????)???]??]????-4-??387350-88-1C12H15F3N2O2S
4-Isocyanato-3-methyl-5-phenylisoxazole , 90%4-??????-3-??-5-??????352018-89-4C11H8N2O2
Trimethyloctylammonium chloride, 98%10108-86-8C11H26ClN
Fluconazole, 98.5%?????86386-73-4C13H12F2N6O
Tetramethylbiphosphine disulfide, 99%3676-97-9C4H12P2S2
2-bromo-4-methyl-1H-imidazole, 95%2-???-4-??-1H-????23328-88-3C4H5BrN2
1,2-Dichlorobenzene-d4, 99 atom%D2199-69-1C6H4Cl2
-Chlorobenzaldoxime??-???????698-16-8C7H6ClNO
3-Fluoro-4-(piperidin-1-ylcarbonyl)benzeneboronic acid 98%3-????-4-(????-1-????)?????874289-10-8C12H15BFNO3
Methyl N-(4-methoxyphenyl)carbamate??N-(4-?????)??????14803-72-6C9H11NO3
3-methyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one(SALTDATA: HCl)77225-15-1C8H14N2O2
SodiuM phytate???????14306-25-3C6H19NaO24P6
2-[(6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl)thio]butanoic acid(SALTDATA: FREE)433253-10-2C9H12N2O3S
Fmoc-D-Tic-OH130309-33-0C25H21NO4
Diethyl azodicarboxylate, 98.5%??? ???????1972-28-7C6H10N2O4
[2-(Dicyclohexylphosphino)ethyl]trimethylammonium chloride, min. 95%181864-78-8C17H35ClNP
2-AMino-2'-nitrodiphenyl Sulfide19284-81-2C12H10N2O2S
2-Methylcyclohexanone2-?????????583-60-8C7H12O
N-BOC-N,2-Dimethylalanine, 98+%146000-39-7C10H19NO4
Methyl 4-[2-nitro-4-(trifluoromethyl)anilino]-butanoateMETHYL4-[2-NITRO-4-(TRIFLUOROMETHYL)ANILINO]??????339101-25-6C12H13F3N2O4
1,2-Phenylenediacetic acid, 98%7500-53-0C10H10O4
TriMethylsilylMethanethiol18165-76-9C4H12SSi
(S)-2-[(tert-Butoxycarbonyl)amino]-5-(dimethylamino)pentanoic acid, 97%(S)-2-[(tert-???????)???]-5-(??????)???65671-54-7C12H24N2O4
1-Hexyl-3-phenyl-2-thiourea15153-13-6C13H20N2S
4-Bromo-2,2-diphenylbutyric acid, 97.5%37742-98-6C16H15BrO2
Phenethyl alcohol, 99%??????60-12-8C8H10O
1,2:5,6-Di-O-isopropylidene-α-D-ribo-hexofuranose-3-ulose monohydrate ,98%10578-85-5C12H20O7
4-(5-methyl-2-furyl)benzaldehyde(SALTDATA: FREE)4-(5-??-2-??)??????400748-10-9C12H10O2
3-(4-Cyanophenyl)-3-oxo-propionic acid methylester3-(4-???-??)-3-??-???????????101341-45-1C11H9NO3
1-Aminomethyl-cyclopropanecarboxylic acid x HCl, 98%1-(?????)???????????139126-45-7C5H9NO2
1-(2-Furylmethyl)piperidine-4-carbaldehyde, 95%1-(2-????)????-4-??????934570-56-6C11H15NO2
Hexafluoro-2-(p-tolyl)isopropanol??????-2-(P-??)??????2010-61-9C10H8F6O
2-{2-[(2-hydroxyethyl)amino]-1H-benzimidazol-1-yl}-1-phenylethanone(SALTDATA: HBr)154055-44-4C17H17N3O2
(6-Iodo-pyridin-2-yl)-methanol(6-???-???-2-?)-???851102-41-5C6H6INO
2,4-Dichloro-6-fluoroquinazoline2,4-????-6-????????134517-57-0C8H3Cl2FN2
1-(2-Iodobenzyl)-4-methylpiperazine , 90%1-(2-?????)-4-??????156333-97-0C12H17IN2
Chloro[(R)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl][2-(diphenylphosphino)ethanamine]ruthenium(II) tetrafluoroborate, min. 97%???[(R)-2,2'-??(???????)-1,1'-????][2-(???????)????]???(II)???????????1150112-44-9C58H48BClF4NP3Ru
4-(1H-Pyrazol-1-yl)phenyl isothiocyanate 97%352018-96-3C10H7N3S
Oxazole-5-carboxylic acid???-5-?????118994-90-4C4H3NO3
3,5-Dichloro-4-hydroxybenzenesulfonyl chloride3,5-????-4-????????????13432-81-0C6H3Cl3O3S
2-Chloro-1,1,2-trifluorotriethylamine, 95%(2-???-1,1,2-????????)?????357-83-5C6H11ClF3N
Ethyl 4,4-difluoro-2-(ethoxymethylene)-3-oxobutanoate??2-??????-4,4-?????(????????)176969-33-8C9H12F2O4
2-(ethylamino)pyrimidine-5-carbaldehyde(SALTDATA: FREE)137279-29-9C7H9N3O
2-N-Boc-2-Methylaminomethyl-3-p-tolyl-propionicacid2-N-BOC-2-METHYLAMINOMETHYL-3-P-TOLYL-?????886364-72-3C17H25NO4
4-methyl-1H-benzimidazol-2-amine(SALTDATA: HBr)1H-??????-2-??,4-??-(9CI)171082-91-0C8H9N3
Succinamic acid ethyl ester?????????53171-35-0C6H11NO3
2-(p-Tolyl)ethylamine, 97%4-???????3261-62-9C9H13N
1-Pentyn-3-ol, 97%??(1-)-3-?4187-86-4C5H8O
Acid Red 26??? 2R3761-53-3C18H17N2NaO7S2
D-Proline tert-Butyl Ester Hydrochloride184719-80-0C9H18ClNO2
2-Cyano-6-Methoxyphenylboronic acid neopentyl glycol ester2-???-6-???????????????????883898-97-3C13H16BNO3
2-Dodecylphenol2-?????5284-29-7C18H30O
2-Bromo-3-pyridinemethanol, 97%2-???-3-(???????)???131747-54-1C6H6BrNO
1-(4-Methoxypyridin-2-yl)ethanone???,1-(4-???-2-????)-(9CI)59576-28-2C8H9NO2
1-Boc-4-(4-Bromo-butyl)-piperidine1-BOC-4-(4-???-??)-????142355-81-5C14H26BrNO2
Di-s-butoxyaluminoxytriethoxysilane68959-06-8C14H33AlO6Si
N-(3-Indolylformyl)-L-phenylalanineN-(3-?????)-L-?????115627-41-3C18H16N2O3
Ethyl 1-(6-methylpyrazin-2-yl)piperidine-3-carboxylate, 97%926921-61-1C13H19N3O2
2-Methyl-3,5,6,7-tetrahydro-4H-pyrrolo[3,4-d]pyriMidin-4-one dihydrochloride dihydrate (SALTDATA: 2HCl 2H2O)1220030-34-1C7H9N3O
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