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DS-6051

CAS No.
1505514-27-1
Chemical Name:
DS-6051
Synonyms
DS-6051;DS-6051B;AB-106freebase;DS-6051b free base;Taletrectinib free base;N-Desmethyl N-Nitroso Tamoxifen-D3;Taletrectinib free base, 10 mM in DMSO;AB-106freebase|||Taletrectinib free base|||IBI-344 free base|||DS-6051b free base;Imidazo[1,2-b]pyridazin-6-amine, 3-[4-[(2R)-2-aminopropoxy]phenyl]-N-[(1R)-1-(3-fluorophenyl)ethyl]-
CBNumber:
CB44918275
Molecular Formula:
C23H24FN5O
Molecular Weight:
405.47
MDL Number:
MFCD32708526
MOL File:
1505514-27-1.mol
Last updated:2025-12-05 14:33:18

DS-6051 Properties

Density 1.27±0.1 g/cm3(Predicted)
pka 8.37±0.10(Predicted)
FDA UNII W4141180YD

DS-6051 Chemical Properties,Uses,Production

Description

DS-6051b (Daiichi Sankyo, Japan) is an oral small molecule tyrosine kinase inhibitor that has demonstrated preclinical activity against ROS1 and NTRK1-3 rearrangements.

Uses

Taletrectinib (DS-6051b) free base is a potent, orally active, and next-generation selective ROS1/NTRK inhibitor. Taletrectinib free base potently inhibits recombinant ROS1, NTRK1, NTRK2, and NTRK3 with IC50s of 0.207, 0.622, 2.28, and 0.98 nM, respectively. Taletrectinib free base also inhibits ROS1 G2032R and other Crizotinib-resistant ROS1 mutants[1][2].

in vivo

Taletrectinib (DS-6051b) free base (25-200 mg/kg; p.o.; once daily for 18 days) shows antitumor activity[1].
Taletrectinib free base (6.25-200?mg/kg; p.o.; once daily for 8 days) inhibits NTRK-rearranged cancer in Balb-c nu/nu mice bearing KM12 cells[1].
Taletrectinib free base (3-100 mg/kg; p.o.; once daily for 4 days) shows rapid tumor regression in the wild-type (WT) and the G2032R-mutant Ba/F3-bearing mice without severe body weight loss[1].

Animal Model:Balb-c nu/nu mice (bearing U-118 MG cells)[1]
Dosage:25, 50, 100, and 200?mg/kg
Administration:P.o.; once daily for 18 days
Result:Effectively inhibited tumor growth at ≥25?mg/kg without significant body weight loss.

References

[1] Katayama R, et al. The new-generation selective ROS1/NTRK inhibitor DS-6051b overcomes crizotinib resistant ROS1-G2032R mutation in preclinical models. Nat Commun. 2019;10(1):3604. Published 2019 Aug 9. DOI:10.1038/s41467-019-11496-z
[2] Fujiwara Y, et al. Safety and pharmacokinetics of DS-6051b in Japanese patients with non-small cell lung cancer harboring ROS1 fusions: a phase I study. Oncotarget. 2018;9(34):23729-23737. Published 2018 May 4. DOI:10.18632/oncotarget.25263

DS-6051 Preparation Products And Raw materials

Raw materials

Preparation Products

DS-6051 Suppliers

Global( 19)Suppliers
Supplier Tel Email Country ProdList Advantage
Jinan Carbotang Biotech Co.,Ltd.
+8615866703830 figo.gao@foxmail.com China 8497 58
TargetMol Chemicals Inc.
+1-781-999-5354; +17819995354 marketing@targetmol.com United States 32435 58
Zhejiang J&C Biological Technology Co.,Limited
+1-2135480471 sales@sarms4muscle.com China 10473 58
Zibo Hangyu Biotechnology Development Co., Ltd
+86-0533-2185556 +8615965530500 nickzhang@hangyubiotech.com China 8510 58
ChengDu TongChuangYuan Pharmaceutical Co.Ltd 028-83379370 13880556291 tcy@tcypharm.com China 7218 58
Chuzhou KeMail Chemical Technology Co., Ltd 0550-5196001 15000891977 wj520wjxby@126.com China 1944 55
Kaixin Chemical (Hong Kong) Limited 010-88886666-01 13112345678 loyson@tcypharm.com China 597 55
Jinan Kabotang Biological Technology Co.,Ltd. 0531-61320525 15866703830 figo.gao@foxmail.com China 5177 58
Chengdu dashengge pharmaceutical technology co., LTD 13880556291 fuwei@tcypharm.com China 235 58
Jinan shenlikang chemical technology co. LTD 0531-86092839 13153040268 2425815073@qq.com China 265 58

View Lastest Price from DS-6051 manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Taletrectinib free base pictures 2025-12-05 Taletrectinib free base
1505514-27-1
US $65.00-255.00 / mg 99.98% 10g TargetMol Chemicals Inc.

DS-6051 Spectrum

Imidazo[1,2-b]pyridazin-6-amine, 3-[4-[(2R)-2-aminopropoxy]phenyl]-N-[(1R)-1-(3-fluorophenyl)ethyl]- DS-6051B DS-6051 AB-106freebase DS-6051b free base Taletrectinib free base N-Desmethyl N-Nitroso Tamoxifen-D3 AB-106freebase|||Taletrectinib free base|||IBI-344 free base|||DS-6051b free base Taletrectinib free base, 10 mM in DMSO 1505514-27-1