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

?? ?:J & K SCIENTIFIC LTD.
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??:China
URL: https://www.jkchemical.com
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2-(3,5-Dimethyl-1H-pyrazol-1-yl)-1-ethanol20000-80-0C7H12N2O
5-(2-fluorophenyl)-1,3,4-oxadiazol-2-amine(SALTDATA: FREE)5-(2-??????)-1,3,4-?????-2-??312272-59-6C8H6FN3O
N-BenzyltriMethylsilylaMineN-??????????14856-79-2C10H17NSi
9-oxa-2-azaspiro[5.5]undecane(SALTDATA: FREE)9-??-2-?????[5.5]???57289-77-7C9H17NO
4-n-Butyl-3'-chlorobenzophenone4-N-BUTYL-3'-???????844884-93-1C17H17ClO
2-(2-Ethyl-piperidin-1-yl)-ethylamine2-(2-??-????-1-?)-????22014-04-6C9H20N2
Anthraquinone-2,7-disulfonic Acid DisodiuM Salt853-67-8C14H9NaO8S2
2-[ethyl(methyl)amino]acetohydrazide (non-preferred name)(SALTDATA: 2HCl)2-[??(??)???]????????(????????)(SALTDATA:2HCl)1203264-31-6C5H13N3O
2-bromo-5-ethoxy-4-hydroxybenzaldehyde(SALTDATA: FREE)2-???-5-???-4-???????????340216-58-2C9H9BrO3
2-sec-butoxy-3-methoxybenzaldehyde(SALTDATA: FREE)872183-67-0C12H16O3
1H-Pyrido[2,3-b][1,4]oxazin-2(3H)-one136742-83-1C7H6N2O2
2-Chloro-4-(trifluoroMethyl)benzonitrile1813-33-8C8H3ClF3N
Tetraphenyl thiophene, 98%1884-68-0C28H20S
Fmoc-D-Glu(OtBu)-OPfp200616-21-3C30H26F5NO6
Di-[3-((S)-2,2'-dihydroxy-1,1'-binaphthylmethyl)]ether, lanthanum(III) salt, tetrahydrofuran adduct SCT-(S)-BINOLSCT-(S)-??293293-33-1C42H26LaO5.H
Diethylene glycol monovinyl ether, 96%?(??????)?????929-37-3C6H12O3
Bis(Zinc Porphyrin) (ca. 5Micro Mol/L in DichloroMethane)[for CD Spectroscopy]????????92995-45-4C74H90N8Zn2
Boc-(S)-3-amino-4-(3-thienyl)-butyric acid270263-00-8C13H19NO4S
Bis(triMethylenedithio)tetrathiafulvalene [Organic Electronic Material]??(????????)????????66946-49-4C12H12S8
Trimethyl stannyl diphenyl methyl silane??????????????214279-38-6C16H22SiSn
(2S)-2-{[(tert-Butoxycarbonyl)amino]methyl}-3-methylbutanoic acid(2S)-2-{[(tert-???????)???]??}-3-?????210346-16-0C11H21NO4
4-benzyl-2-(chloromethyl)-1,4-oxazepane(SALTDATA: FREE)4-??-2-(?????)-1,4-????(SALTDATA:??)129482-45-7C13H18ClNO
2,3,7,8,12,13,17,18-Octafluoro-5,10,15,20-tetrakis(pentafluorophenyl)porphyrin2,3,7,8,12,13,17,18-??????-5,10,15,20-?????(????????)????121399-88-0C44H2F28N4
6-Methoxy-2H-chromene-3-carbonitrile6-???-2H-??-3-?????57543-71-2C11H9NO2
(2E)-3-{4-[(4-chlorobenzyl)oxy]phenyl}acrylic acid(SALTDATA: FREE)879642-82-7C16H13ClO3
3-(Isobutanoylamino)benzeneboronic acid 98%(3-???????)?????874459-76-4C10H14BNO3
4-BroMo-2,5-dichlorophenol4-???-2,5-??????1940-42-7C6H3BrCl2O
2-Bromo-5-chloro-1,3-difluorobenzene4-???-1-???-3,5-???????883546-16-5C6H2BrClF2
2-Chloro-4-(fur-2-yl)pyrimidine 97%124959-28-0C8H5ClN2O
2-(Tetrahydropyran-4-yloxy)benzoic acid , 97%2-(????????-4-???)???898289-29-7C12H14O4
(1-ethyl-1-methylpropyl)amine(SALTDATA: HCl)1-??-1-??-1-?????3495-46-3C6H15N
4-(4-Ethyl-phenyl)-5-methyl-thiazol-2-ylamine4-(4-??-??)-5-??-???-2-???438218-98-5C12H14N2S
2-Chloro-5-fluorobenzenesulfonyl chloride2-???-5-??????????????82875-86-3C6H3Cl2FO2S
N-[5-(2-Bromo-acetyl)-2-hydroxy-phenyl]-methanesulfonamideN-[5-(2-???-???)-2-?????-??]-???????14347-24-1C9H10BrNO4S
Dibutyltin Maleate Polymer n=2-4???????????53507-04-3C12H20O4Sn
N4-Benzoylcytidine, 98%, a reverse transcriptase inhibitor against the HIV-1 virus13089-48-0C16H17N3O6
Sodium orthosilicate???????13472-30-5Na4O4Si
4-Hydroxy-6-(trifluoromethyl)pyrimidine-2-thiol, 97%4-????-6-(????????)????-2-??368-54-7C5H3F3N2OS
H-D-Tyr-OtBu87553-74-0C13H19NO3
Calcium pyrophosphate (99.95%-Ca)??????????7790-76-3Ca2O7P2
Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, 98%??(2,2,6,6-?????-4-?????)????52829-07-9C28H52N2O4
DiMethyl Dodecanedioate1731-79-9C14H26O4
Azidosulfonylpheneethyltrimethoxysilane4-[2-(???????)??]??-1-??????68479-60-7C11H17N3O5SSi
3-(6-Chloro-3-pyridazinyloxy)phenylamine3-(6-???-3-???????)????30184-98-6C10H8ClN3O
4-Butyl-4'-hydroxychalcone4-??-4'-???????385810-21-9C19H20O2
2-BroMo-3-(3-chloro-5-fluorophenyl)-1-propene842140-29-8C9H7BrClF
[4-(allyloxy)phenyl]boronic acid(SALTDATA: FREE)???,[4-(2-??????)??]-1117776-68-7C9H11BO3
3-chloro-N-(5-ethyl-1,3,4-thiadiazol-2-yl)propanamide(SALTDATA: FREE)391864-01-0C7H10ClN3OS
Allylsuccinic Anhydride7539-12-0C7H8O3
1-NaphthohydroxaMic Acid6953-61-3C11H9NO2
2-(4-Bromo-2-formylphenoxy)acetic acid(4-BROMO-2-FORMYLPHENOXY)????24589-89-7C9H7BrO4
Diphenyl difluorosilane312-40-3C12H10F2Si
Glycine n-hexyl ester hydrochloride?????????75980-28-8C8H17NO2
N-BenzhydrylbenzamideN-????-????1485-72-9C20H17NO
1-(3-Bromopropoxy)-2-methylbenzene, 95+%50912-60-2C10H13BrO
2,8-Dichlorocyclooctanone2,8-???????????108249-93-0C8H12Cl2O
Diethyl 2-[(4-methoxyphenyl)methylene]malonate???4-??????????6768-23-6C15H18O5
Ethyl 3-cyano-2-pyridinecarboxylate??3-??????-2-???????97316-55-7C9H8N2O2
2-hyrazinyl-6-ethoxybenzothiazole2(3H)-??????,6-???-,????(9CI)16942-73-7C9H11N3OS
Hex-4-enoic acid, mixture of cis/trans isomers 98%4-????35194-36-6C6H10O2
(R)-6-Chloro-2-hexanol, 98+%(R)-6-???-2-???154885-33-3C6H13ClO
Allyl(4-methoxyphenyl)dimethylsilane68469-60-3C12H18OSi
3-Bromophenyl trifluoromethyl sulfide3-(??????????)BROMOBENZENE2252-45-1C7H4BrF3S
2-(β-Cyanoethyl)cyclohexanone4594-78-9C9H13NO
5-chloro-2-[(2-fluorobenzyl)oxy]benzaldehyde(SALTDATA: FREE)5-???-2-[(2-??????)??]?????590360-21-7C14H10ClFO2
1-(tert-Butoxycarbonyl)-3-(3,4-dichlorobenzyl)-3-piperidinecarboxylic acid1-[(TERT-??)??????]-3-(3,4-??????)????-3-?????887344-21-0C18H23Cl2NO4
2,6-Difluorophenacyl bromide2',6'-?????????????56159-89-8C8H5BrF2O
4-Chloro-3',4'-diMethoxybenzophenone4-???-3,4'-????????116412-83-0C15H13ClO3
4-chloro-6-methyl-2-phenylpyrimidine(SALTDATA: FREE)4-???-6-??-2-??-????29509-92-0C11H9ClN2
1,3-Dichloro-2-iodobenzene, 98%19230-28-5C6H3Cl2I
1,3-Bis(tert-butoxycarbonyl)-2-methyl-2-thiopseudourea, 95%107819-90-9C12H22N2O4S
3-Chloro-2-chloromethyl-1-propene, 98%2-(?????)?????????1871-57-4C4H6Cl2
3,4-Dimethoxybenzenesulfonyl chloride, 98%23095-31-0C8H9ClO4S
Boc-5-aminovaleric acid, 97%27219-07-4C10H19NO4
Tantalum(V) methoxide (99.99+%-Ta) PURATREM865-35-0C5H15O5Ta
5-Hydroxy-2-methylpyridine, 97%5-????-2-?????1121-78-4C6H7NO
Benzyl butyl phthalate, 97%?????????85-68-7C19H20O4
Calcium acetate, 99%???? ??62-54-4C4H6CaO4
trans-N-Fmoc-L-4-Hydroxyproline, 98%Fmoc-L-????????88050-17-3C20H19NO5
1,5-dihydro-2,4-benzodioxepin-7-ylhydrazine(SALTDATA: 1.3HCl)1,5-????-2,4-??????-7-?????(?????:1.3HCl)915921-13-0C9H12N2O2
Cyclopentadecanone OxiMe???????????34341-05-4C15H29NO
1-Pyrrolidin-2-(2'-chlorophenyl)-2-(N-Cbz-N-methyl)amino-ethane1-????-2-(2'-?????)-2-(N-CBZ-N-??)???-??675602-67-2C21H25ClN2O2
2-[4-(2-Methoxyphenyl)piperazino]ethanethioamide2-[4-(2-?????)?????]???????219125-59-4C13H19N3OS
4-(Difluoromethoxy)phenylacetonitrile4-(DIFLUOROMETHOXY)???????41429-16-7C9H7F2NO
N-(2-fluorobenzyl)-2-butanamine(SALTDATA: HCl)N-(sec-??)-N-(2-??????)??893590-49-3C11H16FN
4-amino-4-methylpentanoic acid(SALTDATA: HCl)3235-46-9C6H13NO2
4-(2-thienyl)-1H-imidazole(SALTDATA: FREE)4-(2-???)-1H-????(SALTDATA:FREE)156647-28-8C7H6N2S
N,N-Diethyl-2,3-diMethylbenzaMideN,N-???-2,3-????????57806-76-5C13H19NO
Iridium carbonyl, 98+%18827-81-1C12Ir4O12
3-(3-Phenyl-2-propenyl)-2,4-pentanedione3-(3-??-2-????)-2,4-????29638-71-9C14H16O2
3-(3-aminophenyl)-5-methylimidazolidine-2,4-dione(SALTDATA: FREE)3-(3-?????)-5-????????-2,4-??(SALTDATA:??)1214061-96-7C10H11N3O2
N-(2-pyridinylmethyl)-1-propanamine(SALTDATA: FREE)N-(???-2-???)???-1-??51639-59-9C9H14N2
Benzyl Tiglate37526-88-8C12H14O2
N-[(1,5-DiMethyl-1H-pyrazol-4-yl)Methyl]-N-MethylaMine(1,5-???-1H-???-4-???)-??-??514801-21-9C7H13N3
8-chloro-5-quinolinamine(SALTDATA: FREE)75793-58-7C9H7ClN2
Diethyl dodec-1-ylphosphonate???(1-???)??????4844-38-6C16H35O3P
Tin(IV) sulphide 99.9%??(IV)????1315-01-1S2Sn
L-N,N-Dibenzylphenylalanine Benzyl Ester111138-83-1C30H29NO2
Tetrakis(1,1,1,3,3,3-hexafluoroisopropyl) Orthosilicate?????(1,1,1,3,3,3-???????????)????????26560-90-7C12H4F24O4Si
2,3-Dimethylbenzene-1-carbonyl chloride2,3-?????-1-?????????21900-46-9C9H9ClO
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