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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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TetraethylphosphoniuM Tetrafluoroborate????????????????????665-49-6C8H20BF4P
B-BroMocatecholborane2-???-1,3,2-???????51901-85-0C6H4BBrO2
1-(4-Piperidinylmethyl)piperidine dihydrochloride1-(4-???????)?????????????32832-17-0C11H24Cl2N2
4-allyl-5-[1-(4-methylphenoxy)ethyl]-4H-1,2,4-triazole-3-thiol(SALTDATA: FREE)667412-79-5C14H17N3OS
Parthenolide, 98%, from Chrysanthemum morifolium?????20554-84-1C15H20O3
Cucurbitacin d with hplc3877-86-9C30H44O7
5-Fluoro-2-(trifluoroMethyl)phenylacetic acid5-????-2-(????????)??????239135-52-5C9H6F4O2
6-Chloro-1-methyl-1H-indole-2-boronic acid957066-11-4C9H9BClNO2
1-Propynylmagnesium bromide, 0.5M solution in THF, AcroSeal16466-97-0C3H3BrMg
4-[5-(chloromethyl)isoxazol-3-yl]pyridine(SALTDATA: HCl)865610-66-8C9H7ClN2O
Eicosane [Standard Material for GC]????112-95-8C20H42
C16-CeraMide24696-26-2C34H67NO3
1-Boc-2-methyl-DL-proline203869-80-1C11H19NO4
NBD-PZ (=4-Nitro-7-piperazino-2,1,3-benzoxadiazole)[for HPLC Labeling]139332-66-4C10H11N5O3
2,4-Dihydroxybenzoic acid methyl ester, 98%2150-47-2C8H8O4
1-(4-Bromobutoxy)-2-chlorobenzene, 97%1-(4-??????)-2-?????23468-00-0C10H12BrClO
1-[1-(2-methylbenzyl)-3-pyrrolidinyl]methanamine(SALTDATA: FREE)1-[1-(2-????)-3-?????]????1017417-47-8C13H20N2
1-(1,2-dimethyl-1H-benzimidazol-5-yl)methanamine(SALTDATA: 2HCl)1038387-96-0C10H13N3
2,3-dimethyl-5-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylic acid(SALTDATA: FREE)79932-56-2C9H8N2O3S
2-(5-amino-1,3,4-thiadiazol-2-yl)-N,N-dimethylacetamide(SALTDATA: FREE)2-(5-???-1,3,4-?????-2-?)-N,N-?????????(SALTDATA:FREE)1211773-00-0C6H10N4OS
1-(Aminomethyl)-3-methylenecyclobutane 97%1-(?????)-3-????????16333-93-0C6H11N
Nicotinic acid - 7-{2-hydroxy-3-[(2-hydroxyethyl)( methyl)amino]propyl}-1,3-dimethyl-3,7-dihydro-1H-p437-74-1C19H26N6O6
4,4'-Bis(dimethylamino)thiobenzophenone, 97%1226-46-6C17H20N2S
3,5-Dibromophenylboronic acid, 97%117695-55-3C6H5BBr2O2
5-Pyridin-2-yl-1,3,4-oxadiazol-2-ylamine5-???-2-YL-1,3,4-?????-2-???5711-72-8C7H6N4O
(S)-Trifluorolactic Acid125995-00-8C3H3F3O3
4-[benzyl(tert-butoxycarbonyl)amino]butanoic acid(SALTDATA: FREE)213772-01-1C16H23NO4
(E)-Ethyl 2-cyano-3-(4-methylphenyl)acrylate??2-???-3-(4-????)??????2017-88-1C13H13NO2
3-[(Dimethylamino)methylene]piperidin-4-one, N1-BOC protected1-Boc-3-[(??????)???]-4-??????157327-41-8C13H22N2O3
2-(3-TrifluoroMethylanilino)nicotinic Acid4394-00-7C13H9F3N2O2
Phytin, 85%3615-82-5C6H22CaMgO24P6
Methyl 5-Hydroxy-4-Methoxyanthranilate??2-???-5-?????-4-????????50413-44-0C9H11NO4
2,3-Thiophenedicarboxaldehyde2,3-????????????932-41-2C6H4O2S
2,6-Dibromo-4-methylphenol, 98%2432-14-6C7H6Br2O
Silver Sulfadiazine??(I) ??????22199-08-2C10H9AgN4O2S
4,4-Dimethyl-2-pyrrolidinone4,4-???-2-?????66899-02-3C6H11NO
1-(1,3,5-trimethyl-1H-pyrazol-4-yl)ethanamine(SALTDATA: FREE)1H-???-4-????,-??-,1,3,5-?????-936940-12-4C8H15N3
Boc-3-bromo-L-phenylalanine82278-73-7C14H18BrNO4
L-Alanyl-L-tryptophan16305-75-2C14H17N3O3
(trans-4-Methylpyrrolidin-3-yl)methanol(???-4-??????-3-?)???945723-36-4C6H13NO
Bis(4-nitrophenyl) Sulfide??(4-?????)???1223-31-0C12H8N2O4S
3-(4-fluorophenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid(SALTDATA: FREE)370098-34-3C16H11FN2O2
1,2-Dodecanediol???????1119-87-5C12H26O2
9,9-Bis(4-amino-3-chlorophenyl)fluorene, 98%4,4 - ?? (9H- ?? ?? -9- ?? ?) - (2- ??? ???)107934-68-9C25H18Cl2N2
4,5-Dimethyl-2-isopropyl thiazole53498-30-9C8H13NS
4-Nitro-1H-indazole4-???-1H-???2942-40-7C7H5N3O2
3-[(allylamino)carbonyl]bicyclo[2.2.1]heptane-2-carboxylic acid(SALTDATA: FREE)3-[(?????)????]????[2.2.1]??-2-?????1005154-25-5C12H17NO3
1-(azidomethyl)-2-methylbenzene(SALTDATA: FREE)1-(?????)-2-????(SALTDATA:FREE)126799-83-5C8H9N3
N-Formyl-L-methionine, 95%4289-98-9C6H11NO3S
AMyl Ether?-?????693-65-2C10H22O
L-Alanine methyl ester hydrochloride, 98%2491-20-5C4H10ClNO2
1,4-Diazabicyclo[3.2.2]nonane, 95%1,4-??????[3.2.2]??283-38-5C7H14N2
3-Amino-6-methoxypyridazine7252-84-8C5H7N3O
4-Ethyl-6-hydroxy-2-methylpyrimidine, 97%52421-75-7C7H10N2O
Glycidyl Stearate?????????????7460-84-6C21H40O3
4-Aminophthalic acid, 97%5434-21-9C8H7NO4
Epibrassinolide, 95%78821-43-9C28H48O6
(6-methoxy-1,3-benzodioxol-5-yl)amine(SALTDATA: FREE)6-???-1,3-?????-5-??69151-32-2C8H9NO3
Cerium(IV) fluoride, anhydrous, 99%??? ??(IV)10060-10-3CeF4
2-Fluoro-4-methoxyacetophenone, 99%74457-86-6C9H9FO2
(E)-3-[3-(4-Fluorophenyl)-1-isopropylindol-2-yl]acrolein93957-50-7C20H18FNO
1-Methyl-1H-pyrazole-4-boronic acid, 97%1-??-1H-???-4-???847818-55-7C4H7BN2O2
trans-4-(tert-Butyldiphenylsilyloxy)-L-proline259212-61-8C21H27NO3Si
L-2-Allylglycine Hydrochloride195316-72-4C5H9NO2.ClH
4,4,4-Trifluorobutanal 95%406-87-1C4H5F3O
4-BroMo-1-fluoro-2-iodobenzene3-???-4-?????????116272-41-4C6H3BrFI
7-methyl-2-phenyl-1H-indole-3-carbaldehyde(SALTDATA: FREE)92855-23-7C16H13NO
3-Chloro-2,6-difluorobenzyl alcohol252004-35-6C7H5ClF2O
1,2-Bis[2'-(trifluoromethyl)phenyl]ethane 97%1,2-BIS[2′-(????????)??]???287172-66-1C16H12F6
2-{[(4-Chlorophenyl)sulfonyl]methyl}-1,3-thiazole-4-carbohydrazide, 97%2-[[(4-?????)???]??]-1,3-THIAZOLE-4-CARBOHYDRAZIDE263015-77-6C11H10ClN3O3S2
(1E)-(6-aminopyridin-2-yl)acetaldehyde oxime(SALTDATA: FREE)(1E)-(6-??????-2-?)?????????(SALTDATA:FREE)933624-28-3C7H9N3O
(5-chloro-2-methoxybenzyl)ethylamine(SALTDATA: HCl)N-(5-???-2-?????)-N-????892587-96-1C10H14ClNO
3-(cyclopentylamino)-3-oxopropanoic acid(SALTDATA: FREE)3-(?????????)-3-??????(?????:??)1060817-51-7C8H13NO3
3-Boc-amino-3-(3-pyridyl)-propionic acid3-TERT-BUTOXYCARBONYLAMINO-3-PYRIDIN-3-YL-?????166194-68-9C13H18N2O4
4-{5-[(Dimethylamino)sulfonyl]-2,3-dihydro-1H-indo-1-yl}-4-oxobutanoic acid393795-65-8C14H18N2O5S
meso-1,2-Bis(4-bromophenyl)ethanediamine, 98+%MESO-1,2-BIS(4-?????)?????117903-53-4C14H14Br2N2
2-Amino-4-(2-pyridyl)thiazole4-???-2-YL-???-2-???30235-26-8C8H7N3S
2-Methyl-5-nitronicotinic acid2-??-5-???????59290-81-2C7H6N2O4
2'-Chloro-5'-(trifluoromethyl)acetophenone71648-45-8C9H6ClF3O
(2-methoxyethyl)[(1,3,5-trimethyl-1H-pyrazol-4-yl)methyl]amine(SALTDATA: FREE)1015845-58-5C10H19N3O
4-(3-Fluorophenyl)-3-thiosemicarbazide70619-48-6C7H8FN3S
Tris(4,6-dimethyl-3-sulfonatophenyl)phosphine trisodium salt hydrate, min. 97% TXPTS???(4,6-???-3-??????)?????????443150-11-6C24H28NaO9PS3
5-forMyl-2-Methoxybenzoic acid (SALTDATA: FREE)5-???-2-??????84923-70-6C9H8O4
4-Chlorobenzonitrile-2,5-diboronic acid neopentyl glycol ester4-????????-2,5-???????????????1072944-28-5C17H22B2ClNO4
1-BroMo-2-MethoxyMethylnaphthalene1-???-2-?????????64689-70-9C12H11BrO
(4-Benzyloxy-benzyl)-pyridin-2-ylmethyl-amine680185-70-0C20H20N2O
5-Methyl-1-phenylpyrazole-3-carboxylic acid10199-57-2C11H10N2O2
Ethyl 4-amino-1H-imidazole-5-carboxylate??4-???-5-???????????21190-16-9C6H9N3O2
1-Methyl-3-p-tolyltriazene [for Esterification]1-??-3-P-??????21124-13-0C8H11N3
Trioctyl Phosphite (Mixture)??????????3028-88-4C24H51O3P
5-Amino-1,3-dimethylpyrazole hydrochloride, 99%5-???-1,3-?????????,99103068-64-0C5H10ClN3
3-Chloro-4-fluoro-3'-methylbenzhydrol3-???-4-????-3'-??????842410-69-6C14H12ClFO
3-Chloro-5-fluorophenylMagnesiuM broMide480438-50-4C6H3BrClFMg
1-(2-methyl-2,3-dihydro-1-benzofuran-5-yl)ethanamine(SALTDATA: HCl)889939-90-6C11H15NO
6-(Methylamino)pyrimidin-2(1H)-one, 98%6220-47-9C5H7N3O
Choline BroMide1927-06-6C5H14BrNO
2,1,3-Benzothiadiazol-5-yl isothiocyanate , 97%2,1,3-???????-5-??????????337508-62-0C7H3N3S2
2-(2,4-difluorophenoxy)propanoic acid(SALTDATA: FREE)2-(2,4-DIFLUOROPHENOXY)????52043-21-7C9H8F2O3
5-(trifluoromethyl)-1H-1,2,3-benzotriazole(SALTDATA: FREE)5-(????????)-1H-1,2,3-??????1548-67-0C7H4F3N3
(1S,2S)-1,2-Dicyclohexylethane-1,2-diamine(1S,2S)-1,2-????????-1,2-???179337-54-3C14H28N2
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