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Beijing TOP Science Biotechnology Co., Ltd

China
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Company Profile

TOP Science is a Biochemical technology co.LTD, And we provide a full range of CRO services that cover the entire drug development pipeline, including contract research for compound synthesis, biochemical and cellular analysis,and marketing research. TOP Science has a wide range of building blocks available for your projects, and is constantly seeking to add more potential drug-like molecules to our products. In addition, TOP Science also provides custom synthesis, contract research, chiral resolution, and structure identification  to our valuable customers in the pursuit of their R&D goals. As a leader in offering specialty,  synthetic intermediates, and custom synthesis, TOP Science provides our customers with the most cost-efficient products and services. Everyday, TOP Science’s products and services are being utilized by our drug discovery customers worldwide to create innovative medicines of tomorrow.

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Product List

Product Name Synonyms CAS No. Grate/Content Operate

(2,4-dihydroxy-5-isopropylphenyl)(5-((4-Methylpiperazin-1-yl)Methyl)isoindolin-2-yl)Methanone

Methanone,[1,3-dihydro-5-[(4-methyl-1-piperazinyl)methyl]-2H-isoindol-2-yl][2,4-dihydroxy-5-(1-methylethyl)phenyl]-;1H-Isoindole,2-[2,4-dihydroxy-5-(1-methylethyl)benzoyl]-2,3-dihydro-5-[(4-methyl-1-piperazinyl)methyl]-;[1,3-Dihydro-5-[(4-methyl-1-piperazinyl)methyl]-2H-isoindol-2-yl][2,4-dihydroxy-5-(1-methylethyl)phenyl]methanone;(2,4-Dihydroxy-5-isopropylphenyl)[5-[(4-methylpiperazin-1-yl)methyl]-1,3-dihydroisoindol-2-yl]methanone;AT 13387;AT 13387X;Onalespib;ATI 3387;(2,4-Dihydroxy-5-propan-2-ylphenyl)-[5-[(4-methylpiperazin-1-yl)methyl]-1,3-dihydroisoindol-2-yl]methanone
912999-49-6 Inquiry

1,10-Phenanthroline,5-bromo-

1,10-Phenanthroline,5-bromo-;5-Bromo-1,10-phenanthroline
40000-20-2 Inquiry

1H-Indole-2,3-dione,4,7-dichloro-

1H-Indole-2,3-dione,4,7-dichloro-;Indole-2,3-dione,4,7-dichloro-;Isatin,4,7-dichloro-;4,7-Dichloro-1H-indole-2,3-dione;4,7-Dichloroisatin;4,7-Dichloroindoline-2,3-dione
18711-13-2 Inquiry

2,4-Dichloro-5-fluoropyridine

2,4-Dichloro-5-fluoropyridine;Pyridine, 2,4-dichloro-5-fluoro-
189281-48-9 Inquiry

2-Amino-5-nitrothiazole

2-Thiazolamine,5-nitro-;Thiazole,2-amino-5-nitro-;5-Nitro-2-thiazolamine;2-Amino-5-nitrothiazole;Enheptin;Entramin;5-Nitro-2-thiazolylamine;Amnizol soluble;Enheptin T;Nitramin IDO;5-Nitro-2-aminothiazole;2-Amino-5-nitro-1,3-thiazole;2-Amino-4-nitrothiazole;NSC 4;5-Nitro-thiazole-2-ylamine;8017-93-4;8023-00-5
121-66-4 Inquiry

2-Pyrazinecarboxamide,6-fluoro-3,4-dihydro-3-oxo-

2-Pyrazinecarboxamide,6-fluoro-3,4-dihydro-3-oxo-;Pyrazinecarboxamide,6-fluoro-3,4-dihydro-3-oxo-;6-Fluoro-3,4-dihydro-3-oxo-2-pyrazinecarboxamide;6-Fluoro-3-hydroxy-2-pyrazinecarboxamide;T 705;T 705 (pharmaceutical);Favipiravir;Avigan;Favilavir;FabiFlu
259793-96-9 Inquiry

3-Aminopiperidine-2,6-dione hydrochloride

3-AMinopiperidine-2,6-Dione-HCL;Glutamicacidimide-DL-hydrochloride;3-aminopiperidine-2,6-dionehydrochloride;3-aMino-aza-cyclohexane2,6-dionehydrochloride;(+-)-3-Amino-2,6-piperidinedionemonohydrochloride;2,6-Piperidinedione,3-amino-,monohydrochloride,(+-)-
2686-86-4 Inquiry

5,9:7,10a-Dimethano-10aH-[1,3]dioxocino[6,5-d]pyrimidine-4,7,10,11,12-pentol,2-amino-1,4,4a,5,9,10-hexahydro-12-(hydroxymethyl)-,(4R,4aR,5R,7S,9S,10S,10aR,11S,12S)-

5,9:7,10a-Dimethano-10aH-[1,3]dioxocino[6,5-d]pyrimidine-4,7,10,11,12-pentol,2-amino-1,4,4a,5,9,10-hexahydro-12-(hydroxymethyl)-,(4R,4aR,5R,7S,9S,10S,10aR,11S,12S)-;Tetrodotoxin;8a(1H)-Quinazolineorthoglycolic acid,octahydro-4,5,6,7,8-pentahydroxy-6-(hydroxymethyl)-2-imino-,cyclic 8a,5:8a,7-ester;(4R,4aR,5R,7S,9S,10S,10aR,11S,12S)-2-Amino-1,4,4a,5,9,10-hexahydro-12-(hydroxymethyl)-5,9:7,10a-dimethano-10aH-[1,3]dioxocino[6,5-d]pyrimidine-4,7,10,11,12-pentol;Tarichatoxin;Spheroidine;5,9:7,10a-Dimethano-10aH-[1,3]dioxocino[6,5-d]pyrimidine-4,7,10,11,12-pentol,octahydro-12-(hydroxymethyl)-2-imino-,[4R-(4α,4aα,5α,7α,9α,10α,10aβ,11S*,12S*)]-;Maculotoxin;Tetrodotoxine;[4R-(4α,4aα,5α,7α,9α,10α,10aβ,11S*,12S*)]-Octahydro-12-(hydroxymethyl)-2-imino-5,9:7,10a-dimethano-10aH-[1,3]dioxocino[6,5-d]pyrimidine-4,7,10,11,12-pentol;BJT 1;Babyloniajaponica toxin 1;Araregai toxin;TTX;(-)-Tetrodotoxin;PFT-1 Toxin;Tectin;2229-61-0;9014-39-5;11005-69-9;11026-09-8;12626-86-7;17289-88-2;954370-68-4;2244057-51-8
4368-28-9 Inquiry

5-Methoxytryptamine hydrochloride

1H-Indole-3-ethanamine,5-methoxy-,hydrochloride (1:1);Indole,3-(2-aminoethyl)-5-methoxy-,monohydrochloride;1H-Indole-3-ethanamine,5-methoxy-,monohydrochloride;5-Methoxytryptamine monohydrochloride;Mexamine;Mexamin;5-Methoxytryptamine chloride;1H-Indole-3-ethanamine 5-methoxy-,hydrochloride (1:1);2-(5-Methoxy-1H-indol-3-yl)ethylamine hydrochloride;2-(5-Methoxy-1H-indol-3-yl)ethan-1-aminium chloride;2-(5-Methoxy-1H-indol-3-yl)ethanamine hydrochloride
66-83-1 Inquiry

6-BROMO-2H-PYRIDO[3,2-B][1,4]OXAZIN-3(4H)-ONE

6-BROMO-2H-PYRIDO[3,2-B][1,4]OXAZIN-3(4H)-ONE;2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one, 6-bromo-;6-BROMO-4H-PYRIDO[3,2-B][1,4]OXAZIN-3-ONE;SCHEMBL592791;CTK8B7988;KS-00000HZH;DTXSID50619207;6-BROMO-2H,3H,4H-PYRIDO[3,2-B][1,4]OXAZIN-3-ONE;6-BROMO-2H-PYRIDO[3 2-B][1 4]OXAZIN-3(4H)-ONE;ANW-59074
337463-88-4 Inquiry

Androst-1-en-3-one,17-(acetyloxy)-1-methyl-, (5a,17b)-

Androst-1-en-3-one,17-(acetyloxy)-1-methyl-,(5α,17β)-;5α-Androst-1-en-3-one,17β-hydroxy-1-methyl-,acetate;(5α,17β)-17-(Acetyloxy)-1-methylandrost-1-en-3-one;SH 567;SH 567a;SQ 16496;17β-Hydroxy-1-methyl-5α-androst-1-en-3-one acetate;Methenolone acetate;1-Methyl-5α-androst-1-en-17β-ol-3-one acetate;Nibal;Primobolan;Metenolone acetate;Primobolone;1-Methyl-17β-hydroxy-5α-androst-1-en-3-one acetate;1-Methyl-17β-hydroxy-5α-androst-1-en-3-one-17β-acetate;Primonabol;NSC 74226;Methenolone 17-acetate;Primobolan Tablets
434-05-9 Inquiry

Androst-4-en-3-one,17-(acetyloxy)-, (17b)-

Androst-4-en-3-one,17-(acetyloxy)-,(17β)-;Testosterone,acetate;(17β)-17-(Acetyloxy)androst-4-en-3-one;Aceto-sterandryl;Aceto-testoviron;17β-Acetoxy-Δ4-androsten-3-one;17β-Acetoxy-4-androsten-3-one;Perandrone A;Testosterone 17-acetate;SKF 5647;17β-Hydroxyandrost-4-en-3-one-17β-acetate;Androst-4-en-17β-ol-3-one acetate;17β-Hydroxyandrost-4-en-3-one acetate;Amolisin;Androtest A;Deposteron;Farmatest;3-Oxoandrost-4-en-17β-yl acetate;4-Androsten-17β-ol-3-one 17-acetate;17β-Acetoxyandrost-4-ene-3-one;17β-Acetoxytestosterone;17-O-Acetyltestosterone;NSC 523836;4-Androstene-17β-ol-3-one acetate;117569-38-7
1045-69-8 Inquiry

Androst-5-en-17-one,3-[(1-oxoheptyl)oxy]-, (3b)-

Androst-5-en-17-one,3-[(1-oxoheptyl)oxy]-,(3β)-;Androst-5-en-17-one,3β-hydroxy-,heptanoate;Heptanoic acid,ester with 3β-hydroxyandrost-5-en-17-one;(3β)-3-[(1-Oxoheptyl)oxy]androst-5-en-17-one;Dehydroepiandrosterone enanthate;3β-Heptanoyloxy-5-androsten-17-one;Dehydroepiandrosterone oenanthate;Prasterone enanthate
23983-43-9 Inquiry

Benzoic acid,2-[4-(diethylamino)-2-hydroxybenzoyl]-, hexyl ester

Benzoic acid,2-[4-(diethylamino)-2-hydroxybenzoyl]-,hexyl ester;Hexyl 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoate;Uvinul A Plus;n-Hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate;Uvinul A Plus Granular;2-(4′-Diethylamino-2′-hydroxybenzoyl)benzoic acid hexyl ester;Uvinul A+;Uvinar A PLUS GRRANULAR;1673545-81-7
302776-68-7 Inquiry

Chitosan

Chitosan;Deacetylchitin;Chitin,N-deacetyl-;Chitan,N-acetyl-;Kytex H;Flonac N;Kytex M;DAC 70;Chicol;Kimitsu Chitosan F 2;Kimitsu Chitosan F;Kimitsu Chitosan M;Kimitsu Chitosan H;Kimitsu Chitosan L;Chitopearl 3510;Sea Cure F;Sea Cure Plus;Chitopearl BC 3000;Chitopearl BCW 3000;Chitopearl BCW 2500;Chitopearl BCW 3500;Chitopearl BCW 3507;Flonac C;Poliglusam;CTA 4;Kitan;Sea Cure 143;Sea Cure 340;NC 50F2;Kimitsu Chitosan LLW;Seasanmer N 2000;KML-V 2;KML-V 54;KLM-V 2;KLM-V 54;Profloc 320;HC 1 (polysaccharide);SC (polysaccharide);SC;HC 1;MA 1;WOT Recovery Floc T;Hiset KW 5;TKS 210;SK 200;Daichitosan VL;SK 50;Chitosan EL;TKS 250N;Sea Cure 243;Sea Cure 343;Marinkaito F 05N;Marinkaito F 05S;KW 5;North Chitosan MC 1;OTS 2;FCM 117;Daichitosan W 10;CTA 1 Lactic Acid;Sea Cure 123;Hydagen HCMF;Kimitsu Chitosan F 2P;Kimitsu Chitosan LL;Chitosan LLWP;LLWP;Kimitsu Chitosan MP;Chitosan MP;Chitosan LL;Crystan LA-S;Chitosan H;Chitosan VL;Chitosan CLH;Chitosan FL;Sea Cure 440;Chitosan M;MK 4;MK 4 (polysaccharide);Biopolymer L 112;Chitosom;Kurita;Profloc P;Hydagen CMFP;Koyo Chitosan SK 30;DAC 50;Chitosan LL 80;Chitosan 500;Chitosan F;100D-VL;KW 5 (polysaccharide);Marine Dew PC 100;K 5;K 5 (chitosan);Koyo Chitosan DAC 50;Flonac LV;Chitofos;Daichitosan P-VL;PSH 80;SA 50;Hydagan DCMF;Koyo Chitosan FM 80;SA 50 (bactericide);BC 10;North Chitosan MA 1;BC 10 (polysaccharide);Chitosan PSH;Daichitosan DVL;57285-05-9;98241-50-0;191045-06-4;1118546-53-4;1268699-64-4;1403748-72-0;1548444-29-6;1869074-89-4;1884679-12-2;2027511-54-0;2129975-33-1;2138871-39-1;2197029-97-1;2387717-47-5;2417799-74-5
9012-76-4 Inquiry

Daptomycin

daptomycin;CUBICIN DAPTOMYCIN;Cidecin;Cubicin;Ly-146032;N-(N-Decanoyl-L-Trp-D-Asn-L-Asp-)cyclo[L-Thr*-Gly-L-Orn-L-Asp-D-Ala-L-Asp-Gly-D-Ser-[(3R)-3-methyl-L-Glu-]-3-(2-aminobenzoyl)-L-Ala-];N-[N-(1-Oxodecyl)-L-Trp-D-Asn-L-Asp-]-cyclo[L-Thr*-Gly-L-Orn-L-Asp-D-Ala-L-Asp-Gly-D-Ser-[(3R)-3-methyl-L-Glu-]-4-(2-aminophenyl)-4-oxo-L-Abu-];N-[N-Decanoyl-L-Trp-D-Asn-L-Asp-]-cyclo[Thr*-Gly-L-Orn-L-Asp-D-Ala-L-Asp-Gly-D-Ser-[(3R)-3-methyl-L-Glu-]-3-(2-aminobenzoyl)-L-Ala-]
103060-53-3 Inquiry

dimethyl-oxo-phosphanium

Phosphine oxide,dimethyl-;Dimethylphosphine oxide;Dimethylphosphinous acid
7211-39-4 Inquiry

Dromostanolone propionate

Androstan-3-one,2-methyl-17-(1-oxopropoxy)-,(2α,5α,17β)-;5α-Androstan-3-one,17β-hydroxy-2α-methyl-,propionate;(2α,5α,17β)-2-Methyl-17-(1-oxopropoxy)androstan-3-one;2MDTP;32379;Dromostanolone propionate;17β-Hydroxy-2α-methyl-5α-androstan-3-one propionate;Masterone;MDHT;2α-Methyldihydrotestosterone propionate;2α-Methyl-4,5-dihydrotestosterone propionate;2α-Methyl-17β-propionoxy-5α-androstan-3-one;Drostanolone propionate;17β-Hydroxy-2α-methylandrostan-3-one propionate;Drolban;Emdisterone;Masterid;Masteril;Permastril;2α-Methylandrostan-17β-ol-3-one propionate;Medrotestron propionate;Medrotestrone propionate;Medrotestrone propanoate;2α-Methyl-17β-hydroxy-5α-androstan-3-one 17-propionate;Masteron;Prometholone;1334-53-8;7241-34-1;51258-12-9
521-12-0 Inquiry

Estr-4-en-3-one,17-[(1-oxodecyl)oxy]-, (17b)-

Estr-4-en-3-one,17-[(1-oxodecyl)oxy]-,(17β)-;Estr-4-en-3-one,17β-hydroxy-,decanoate;Decanoic acid,ester with 17β-hydroxyestr-4-en-3-one;(17β)-17-[(1-Oxodecyl)oxy]estr-4-en-3-one;Deca-Durabolin;17β-Hydroxyestr-4-en-3-one decanoate;Nandrolone decanoate;19-Norandrostenolone decanoate;19-Nor-17β-hydroxy-3-ketoandrost-4-ene 17-decanoate;19-Nortestosterone decanoate;19-Nortestosterone 17β-decanoate;Norandrostenolone decanoate;Retabolil;17β-Hydroxyestr-4-en-3-one 17-decanoate;17β-Hydroxy-19-norandrost-4-en-3-one 17-decanoate;Deca-Durabol;Nortestosterone decanoate;Anabolicum;Decanofort;Extraboline;Hybolin decanoate;Nandrobolic LA;Deca-Hybolin;Anabolin Forte;17β-Nandrolone laureate;17β-Nortestosterone laureate;DECA-Deca-Durabolin;4-Estrene-17β-ol-3-one decanoate;9040-11-3
360-70-3 Inquiry

Germanium sulfide(GeS2)

Germanium sulfide (GeS2);Germanium sulfide (Ge0.33S0.67);Germanium disulfide;145114-12-1;145114-13-2
12025-34-2 Inquiry
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