OTSSP167 (hydrochloride)


CAS No. : 1431698-10-0

(Synonyms: OTS167 (hydrochloride))

1431698-10-0
Price and Availability of CAS No. : 1431698-10-0
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Cat. No. : HY-15512A
M.Wt: 523.88
Formula: C25H29Cl3N4O2
Purity: >98 %
Solubility: H2O : 7.14 mg/mL (ultrasonic);DMSO : 33.33 mg/mL (ultrasonic)
Introduction of 1431698-10-0 :

OTSSP167 (OTS167) hydrochloride is a highly potent and ATP-competitive MELK inhibitor with IC50 value of 0.41 nM. IC50 & Target:IC50: 0.41 nM (MELK) In Vitro:OTSSP167 inhibits the growth of A549 (lung), T47D (breast), DU4475 (breast), 22Rv1 (prostate) and HT1197 (bladder) cancer cells with IC50 values of 6.7, 4.3, 2.3, 6.0 and 97 nM, respectively[1].
OTSSP167 can abrogate the mitotic checkpoint, disrupt MCC and MCC-APC/C interaction in MCF7 cells. OTSSP167 causes GFP-MELK localization to cell cortex in prometaphase cells[2].
OTSSP167 is a MELK selective inhibitor, exhibits a strong in vitro activity, conferring an IC50 of 0.41 nM[3].
In Vivo:OTSSP167 (20 mg/kg, i.v.) results in tumor growth inhibition (TGI) of 73% in xenograft mouse model; OTSSP167 (1, 5, and 10 mg/kg, p.o.) reveals TGI of 51, 91, and 108%, respectively. OTSSP167 (20 mg/kg, p.o.) shows no tumor growth suppressive effect on PC-14 xenografts[1].

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