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Beijing Keyi Tongda Technology Development Co., Ltd??? ?? ??? ?????.

?? ?:Beijing Keyi Tongda Technology Development Co., Ltd
??:-
???:kytd20@sina.com
??:China
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? ?? ?:1465
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6-Methylene-3-oxobicyclo[3.2.1]octane-1-carboxylic acid157749-84-3C10H12O3
difluoromaleic anhydride???????????669-78-3C4F2O3
7-Fluoro-6-amino-2H-1,4-benzoxazin-3(4H)-one112748-06-8C8H7FN2O2
CHUGAI-01 (4'S)-4'-ethyl-1',4',7',8'-tetrahydro-4'-hydroxy-3'H,10'H-spiro[1,3-dioxolane-2,6'-pyrano[3,4-f]indolizine]-3',10'-dione110351-93-4C15H17NO6
1,3-Bis(2,6-diisopropylphenyl)-2,2-difluoro-2,3-dihydro-1H-imidazole1314657-40-3C27H36F2N2
1-(4-Fluorophenyl)-2-Methoxyethanone1-(4-??????)-2-??????247179-37-9C9H9FO2
4,4,4-TRIFLUOROBUTAN-2-ONE4,4,4-????????-2-?2366-70-3C4H5F3O
Bis(acetylacetonato)cobalt???(II) ?????????14024-48-7C15H21CoO6
PERFLUOROISONONYL IODIDE??????????????865-77-0C9F19I
SALOR-INT L497177-1EA10428-58-7C8H22I2N2
TRIS(PENTAFLUOROPHENYL)BORANE???(????????)????1109-15-5C18BF15
4-PIPERIDINECARBOXYLIC ACID T-BUTYL ESTER HCL4-????????T-??????HCL892493-65-1C10H20ClNO2
Palladium (II) Acetate???? ??? (II)3375-31-3Pd(OCOCH3)2
TRICYCLOPENTYLPHOSPHINE7650-88-6C15H27P
1-Aza-1-propyne1-oxide1-??-1-???1-????7063-95-8C2H3NO
3-BROMO-5H,6H,7H-CYCLOPENTA[B]PYRIDIN-5-ONE1196154-87-6C8H6BrNO
1-Benzyl-4-methyl-piperidin-3-one hydrochloride1-??-4-??-????-3-????1303968-15-1C13H18ClNO
Palladium, [1,3-bis[2,6-bis(1-ethylpropyl)phenyl]-4,5-dichloro-1,3-dihydro-2H-imidazol-2-ylidene]dichloro(2-methylpyridine)-, (SP-4-1)-1612891-29-8C41H57Cl4N3Pd
TRIPHENYLPHOSPHINE DIBROMIDE1034-39-5C18H15Br2P
tBuBrettPhos Pd G6 TES2097600-19-4C43H68BrO4PPdSi
tert-Butyl piperidine-4-carboxylate4-?????????-??????HCl138007-24-6C10H19NO2
6-FLUORO-3,4-PYRIDINEDIAMINE212268-13-8C5H6FN3
Dicyclohexylborane1568-65-6C12H23B
2,4,4,6-TETRABROMO-2,5-CYCLOHEXADIENONE2,4,4,6-??????-2,5-?????????20244-61-5C6H2Br4O
1,3-Dihydro-3,3-dimethyl-1-(trifluoromethyl)-1,2-benziodoxole, Tognis Reagent1,3-?????-3,3-???-1-(????????)-1,2-?????,??????887144-97-0C10H10F3IO
3-ethynyl-3-Methyloxetane3-???-3-?????1290541-27-3C6H8O
2-(2,4-difluorophenyl)-5-(trifluoroMethyl)pyridine2-(2,4-???????)-5-(????????)???387827-64-7C12H6F5N
(3R,5S)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)pyrrolidin-3-ol151953-64-9C26H29NO4
PYRUVONITRILE??????631-57-2C3H3NO
1-FLUORO-2,4,6-TRIMETHYLPYRIDINIUM TRIFLATE1-????-2,4,6-???????? ???????107264-00-6C9H11F4NO3S
BIS(TERT-BUTYLCARBONYLOXY)IODOBENZENE 97??(tert-????????)?????9757357-20-7C16H23IO4
AKOS BB-992861305-27-9C5H6O2
2(1H)-PYRIDINONE, 1-METHYL-5-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1002309-52-5C12H18BNO3
Methyl propiolate?? ???????922-67-8C4H4O2
Ir(dtbbpy)(ppy)2][PF6676525-77-2C40H40F6IrN4P
DI-MU-METHOXOBIS(1,5-CYCLOOCTADIENE)DIIRIDIUM(I)DI-MU-?????(1,5-????????)????(I)12148-71-9C18H22Ir2O2
2-Propynoic acid, 1-methylethyl ester2-?????,1-????????96088-62-9C6H8O2
Ir{dFCF3ppy}2(bpy)]PF61092775-62-6C34H18F16IrN4P
RuPhos Palladacycle Gen. 41599466-85-9C44H58NO5PPdS
1-(5-Hydroxy-2-nitrophenyl)-1-propanone453518-19-9C9H9NO4
SUCCINALDEHYDE???????638-37-9C4H6O2
Iridium, tris[2-(2-pyridinyl-kN)phenyl-kC]-???,???[2-(2-????-kN)??-kC]-693794-98-8C33H24IrN3
Sulfonium, triphenyl-, salt with 2,2-difluoro-2-sulfoethyl 4-(dimethylamino)benzoate (1:1)1451961-35-5C29H27F2NO5S2
NSC289335465-08-7C5H10O3
Aclarubicin57576-44-0C42H53NO15
Diethyl (Methoxymethyl)phosphonate32806-04-5C6H15O4P
(+)-1,2-BIS((2S,5S)-2,5-DIETHYLPHOSPHOLANO)BENZENE(CYCLOOCTADIENE)RHODIUM (I) TRIFLUOROMETHANESULFONATE(+)-1,2-??((2S,5S)-2,5-????????)??(????????)??(I)?????????????142184-30-3C31H48F3O3P2RhS
(SP-4-1)-[1,3-Bis[2,6-bis(1-propylbutyl)phenyl]-4,5-dichloro-1,3-dihydro-2H-imidazol-2-ylidene]dichloro(3-chloropyridine-κN)-Palladium1814936-54-3C48H70Cl5N3Pd
N-Boc-Ethylenediamine57260-73-8C7H16N2O2
3-Ethynyl-1-azetidinecarboxylic acid tert-butyl ester3-???-1-?????????tert-??????287193-01-5C10H15NO2
4-BROMO-2,6-DIFLUOROPHENOL104197-13-9C6H3BrF2O
2-Chloroadenosine146-77-0C10H12ClN5O4
N,N',N''-METHYLIDYNETRISFORMAMIDEN,N',N”-?????????????4774-33-8C4H7N3O3
NITROSONIUM TETRAFLUOROBORATE14635-75-7BF4H2NO
(+)-Apoverbenone35408-03-8C9H12O
DIETHYL BENZYLPHOSPHONATE1080-32-6C11H17O3P
2-(3-METHOXY-1-PROPYN-1-YL)-4,4,5,5-TETRAMETHYL-(1,3,2)DIOXABOROLANE634196-63-7C10H17BO3
Ethanone, 2,2-dichloro-1-(4-methylphenyl)- (9CI)???,2,2-????-1-(4-????)-(9Cl)4974-59-8C9H8Cl2O
Bis(2-oxo-3-oxazolidinyl)phosphinic chloride68641-49-6C6H8ClN2O5P
4-(4-Pyridinyl)phenylboronic acid pinacol ester4-(4-????)????????????1009033-87-7C17H20BNO2
3-Ethoxy-4-methoxy benzonitrile?????,3-???-4-???-60758-86-3C10H11NO2
(5-Acetylpyridin-3-yl)boronic acid1033745-21-9C7H8BNO3
XPhos Pd G41599466-81-5C47H64NO3PPdS
SPhos Palladacycle Gen. 41599466-87-1C40H50NO5PPdS
9-BORABICYCLO[3.3.1]NONANE70658-61-6C8H15B
R(+)-2 2'-BIS-(DIPHENYLPHOSPHINO)-6 6'-&(R)-(+)-2,2'-??(???????)-6,6'-????-1,1'-???133545-16-1C38H32O2P2
2-(Pyridazin-4-yl)thiazole-4-carboxylic acid955400-58-5C8H5N3O2S
3-(2-FURYL)BENZOIC ACID3-(2-??)???35461-99-5C11H8O3
1,3-bis[2,6-bis(1-ethylpropyl)phenyl]-4,5-dichloro-imidazol-2-ylidene]-dichloro-(3-chloropyridin-1-ium-1-yl)palladium1435347-24-2C40H54Cl5N3Pd
N-METHYL-2,2'-DIAMINODIETHYLAMINE??-1,3-?????????4097-88-5C5H15N3
(Z)-N-(3-(DIMETHYLAMINO)-2-(TRIFLUOROMETHYL)ALLYLIDENE)-N-METHYLMETHANAMINIUM HEXAFLUOROPHOSPHATE(Z)-N-(3-(??????)-2-(????????)????)-N-??????????????????292067-84-6C7H14BrF6N2P
bis[2-(2-Pyridinyl)phenolato]berylliuM??[2-(2-????)????]???220694-90-6C22H16BeN2O2
3-Chloro-1-methyl-1H-1,2,4-triazole3-???-1-??-1H-1,2,4-????56616-92-3C3H4ClN3
Ethyl-N-methyl malonamide??-N-???????71510-95-7C6H11NO3
DIETHYL (CHLOROMETHYL)PHOSPHONATE3167-63-3C5H12ClO3P
Fluoro-methanesulfonyl chloride42497-69-8CH2ClFO2S
2,6-DIISOPROPYLPHENYLIMIDO NEOPHYLIDENEMOLYBDENUM BIS(HEXAFLUORO-T-BUTOXIDE)2,6-DIISOPROPYLPHENYLIMIDO???????????(??????-T-?????)139220-25-0C30H35F12MoNO2
(Dichloromethylene)dimethylammonium chloride33842-02-3C3H6Cl2N.Cl
1,4,7,10-TETRAAZACYCLODODECANE TETRAHYDROCHLORIDE???? ????????????10045-25-7C8H21ClN4
Iridium2030437-90-0Ir
Spiro[1,3-dioxolane-2,6'(3'H)-[1H]pyrano[3,4-f]indolizine]-3',10'(4'H)-dione, 4'-ethyl-7',8'-dihydro-4'-hydroxy-102978-41-6C15H17NO6
Butanimidoyl chloride, 2-ethyl-N-hydroxy-91400-03-2C6H12ClNO
4-(Boc-amino)-1-(Fmoc-piperidinyl)-4-carboxylic Acid368866-07-3C26H30N2O6
4-BroMo-9,9-diphenyl-9H-fluorene4- ?? ? -9,9'- ? ?? ?? ??713125-22-5C25H17Br
5,5,8,8-tetramethyl-3-(6-(6-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydrobenzo[e][1,2,4]triazin-3-yl)pyridin-2-yl)pyridin-2-yl)-5,6,7,8-tetrahydrobenzo[e][1,2,4]triazine886970-80-5C32H38N8
BrettPhos Pd G4?? ?? ?? ? (2- ?? ?? ?? ?? ?? -3,6- ?? ?? -2 ', 4', 6'- ?? -i- ??? -1,1'- ? ??) (2'- ?? ??? -1,1'- ? ?? -2- ? ) ??? (II)1599466-83-7C49H68NO5PPds
Di-t-butoxyethyne?-t-?????66478-63-5C10H18O2
Acetic acid, 2-(5-fluoro-2,4-dinitrophenoxy)-, methyl ester122641-47-8C9H7FN2O7
1,4-DIOXENE1,4-????543-75-9C4H6O2
PROPARGYLAMINE??????2450-71-7C3H5N
DIETHYL DIBROMOMALONATE????????????631-22-1C7H10Br2O4
TERT-BUTYL 2,6-DIAZASPIRO[3.3]HEPTANE-2-CARBOXYLATEtert-??2,6-??????[3.3]??-2-???????1041026-70-3C10H18N2O2
Triphenylbismuth Difluoride???????????????2023-48-5C18H15BiF2
1,1-Dibromoformaldoxime1,1-?????????74213-24-4CHBr2NO
1-Azabicyclo[2.2.2]octane-4-Methanol, α,α-diphenyl-1-??????[2.2.2]??-4-???,α,α-???-461648-39-5C20H23NO
Indole-6-carboxylic acid1670-82-2C9H7NO2
Cobalt carbonyl??? ???10210-68-1C8Co2O8+4
VERBENONE????18309-32-5C10H14O
3-Chloro-6,7-dihydro-[1]pyrindin-5-one1196156-78-1C8H6ClNO
3-Butyn-2-one1423-60-5C4H4O
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