OTS514 HCl

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 558256

CAS#: 1338540-63-8 (free base)

Description: OTS514 is a potent TOPK (T-LAK cell-originated protein kinase) inhibitor. OTS514 exhibits growth suppressive effect on small cell lung cancer. TS514 effectively suppressed growth of SCLC cell lines (IC50 ; 0.4 ~ 42.6 nM) and led to their apoptotic cell death. Treatment with OTS514 suppressed forkhead box protein M1 (FOXM1) activity, which was involved in stemness of CSC. Furthermore, OTS514 treatment reduced CD90-positive SCLC cells and showed higher cytotoxic effect against lung sphere-derived CSC-like SCLC cells.

Price and Availability

Size Price Shipping out time Quantity
100mg USD 750 2 Weeks
200mg USD 1250 2 Weeks
500mg USD 2150 2 Weeks
1g USD 2950 2 Weeks
2g USD 4650 2 Weeks
5g USD 7950 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-01-20. Prices are subject to change without notice.

OTS514 HCl, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 558256
Name: OTS514 HCl
CAS#: 1338540-63-8 (free base)
Chemical Formula: C21H21ClN2O2S
Exact Mass: 364.1245
Molecular Weight: 400.921
Elemental Analysis: C, 62.91; H, 5.28; Cl, 8.84; N, 6.99; O, 7.98; S, 8.00

Related CAS #: 1338540-63-8 (free base)   1338544-87-8 (HBr)   1338541-25-5 (s-isomer)   1338545-92-8 (S-isomer HCl)    

Synonym: OTS514; OTS 514; OTS-514; OTS514 HCl, OTS514 Hydrochloride.

IUPAC/Chemical Name: 9-[4-[(1R)-2-amino-1-methylethyl]phenyl]-8-hydroxy-6-methyl-thieno[2,3-c]quinolin-4(5H)-one hydrochloride


InChi Code: InChI=1S/C21H20N2O2S.ClH/c1-11-9-16(24)17(14-5-3-13(4-6-14)12(2)10-22)18-15-7-8-26-20(15)21(25)23-19(11)18;/h3-9,12,24H,10,22H2,1-2H3,(H,23,25);1H/t12-;/m0./s1

SMILES Code: O=C1NC2=C(C(C3=CC=C([C@@H](C)CN)C=C3)=C(O)C=C2C)C4=C1SC=C4.[H]Cl

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


1: Ikeda Y, Park JH, Miyamoto T, Takamatsu N, Kato T, Iwasa A, Okabe S, Imai Y, Fujiwara K, Nakamura Y, Hasegawa K. T-LAK Cell-Originated Protein Kinase (TOPK) as a Prognostic Factor and a Potential Therapeutic Target in Ovarian Cancer. Clin Cancer Res. 2016 Dec 15;22(24):6110-6117. PubMed PMID: 27334838.

2: Park JH, Inoue H, Kato T, Zewde M, Miyamoto T, Matsuo Y, Salgia R, Nakamura Y. TOPK (T-LAK cell-originated protein kinase) inhibitor exhibits growth suppressive effect on small cell lung cancer. Cancer Sci. 2017 Jan 11. doi: 10.1111/cas.13160. [Epub ahead of print] PubMed PMID: 28075524.

3: Kato T, Inoue H, Imoto S, Tamada Y, Miyamoto T, Matsuo Y, Nakamura Y, Park JH. Oncogenic roles of TOPK and MELK, and effective growth suppression by small molecular inhibitors in kidney cancer cells. Oncotarget. 2016 Apr 5;7(14):17652-64. doi: 10.18632/oncotarget.7755. PubMed PMID: 26933922; PubMed Central PMCID: PMC4951240.

4: Alachkar H, Mutonga M, Malnassy G, Park JH, Fulton N, Woods A, Meng L, Kline J, Raca G, Odenike O, Takamatsu N, Miyamoto T, Matsuo Y, Stock W, Nakamura Y. T-LAK cell-originated protein kinase presents a novel therapeutic target in FLT3-ITD mutated acute myeloid leukemia. Oncotarget. 2015 Oct 20;6(32):33410-25. doi: 10.18632/oncotarget.5418. PubMed PMID: 26450903; PubMed Central PMCID: PMC4741775.