OTS964 HCl

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MedKoo CAT#: 206191

CAS#: 1338545-07-5 (HCl)

Description: OTS964 is a potent and selective TOPK inhibitor with potential anticancer activity. OTS964 inhibits TOPK kinase activity with high affinity and selectivity. Similar to the knockdown effect of TOPK small interfering RNAs (siRNAs), this inhibitor causes a cytokinesis defect and the subsequent apoptosis of cancer cells in vitro as well as in xenograft models of human lung cancer. Although administration of the free compound induced hematopoietic adverse reactions (leukocytopenia associated with thrombocytosis), the drug delivered in a liposomal formulation effectively caused complete regression of transplanted tumors without showing any adverse reactions in mice. ( Sci Transl Med. 2014 Oct 22;6(259):259ra145. )

Chemical Structure

OTS964 HCl
CAS# 1338545-07-5 (HCl)

Theoretical Analysis

MedKoo Cat#: 206191
Name: OTS964 HCl
CAS#: 1338545-07-5 (HCl)
Chemical Formula: 23H25ClN2O2S
Exact Mass:
Molecular Weight: 428.975
Elemental Analysis: C, 64.40; H, 5.87; Cl, 8.26; N, 6.53; O, 7.46; S, 7.47

Price and Availability

Size Price Availability Quantity
10.0mg USD 150.0 Same Day
25.0mg USD 250.0 Same Day
50.0mg USD 450.0 Same Day
100.0mg USD 750.0 Same Day
200.0mg USD 1350.0 Same day
500.0mg USD 2250.0 Same day
1.0g USD 3650.0 Same day
2.0g USD 6450.0 2 Weeks
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Related CAS #: 1338542-14-5 (free base)   1338545-07-5 (HCl)    

Synonym: OTS964; OTS964; OTS 964; OTS964 HCl; OTS964 hydrochloride

IUPAC/Chemical Name: (R)-9-(4-(1-(dimethylamino)propan-2-yl)phenyl)-8-hydroxy-6-methylthieno[2,3-c]quinolin-4(5H)-one hydrochloride


InChi Code: InChI=1S/C23H24N2O2S.ClH/c1-13-11-18(26)19(16-7-5-15(6-8-16)14(2)12-25(3)4)20-17-9-10-28-22(17)23(27)24-21(13)20;/h5-11,14,26H,12H2,1-4H3,(H,24,27);1H/t14-;/m0./s1

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

Appearance: Solid powder

Purity: >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).

Solubility: Soluble in DMSO, not in water

Shelf Life: >5 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: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 428.975 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Novel molecule targets cytokinesis. Cancer Discov. 2015 Jan;5(1):OF8. doi: 10.1158/2159-8290.CD-NB2014-170. Epub 2014 Nov 13. PubMed PMID: 25583820.

2: Matsuo Y, Park JH, Miyamoto T, Yamamoto S, Hisada S, Alachkar H, Nakamura Y. TOPK inhibitor induces complete tumor regression in xenograft models of human cancer through inhibition of cytokinesis. Sci Transl Med. 2014 Oct 22;6(259):259ra145. doi: 10.1126/scitranslmed.3010277. PubMed PMID: 25338756.

Additional Information