Determine the necessary mass, volume, or concentration for preparing a solution.
≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C,Desiccated Ships Wet ice Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
OTSSP167 (OTS167) hydrochloride is a highly potent and ATP-competitive MELK inhibitor with IC 50 value of 0.41 nM.
In Vitro
OTSSP167 inhibits the growth of A549 (lung), T47D (breast), DU4475 (breast), 22Rv1 (prostate) and HT1197 (bladder) cancer cells with IC 50 values of 6.7, 4.3, 2.3, 6.0 and 97 nM, respectively. 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. OTSSP167 is a MELK selective inhibitor, exhibits a strong in vitro activity, conferring an IC 50 of 0.41 nM. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
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 . MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Form:Solid
IC50& Target:IC50: 0.41 nM (MELK)
| Sonrisas canónicas | CC(=O)C1=CN=C2C=CC(=NC2=C1NC3CCC(CC3)CN(C)C)C4=CC(=C(C(=C4)Cl)O)Cl.Cl |
|---|---|
| IUPAC Name | 1-[6-(3,5-dichloro-4-hydroxyphenyl)-4-[[4-[(dimethylamino)methyl]cyclohexyl]amino]-1,5-naphthyridin-3-yl]ethanone;hydrochloride |
| InChIKey | XDGWHISAOWEFML-UHFFFAOYSA-N |
| INCHI | 1S/C25H28Cl2N4O2.ClH/c1-14(32)18-12-28-22-9-8-21(16-10-19(26)25(33)20(27)11-16)30-24(22)23(18)29-17-6-4-15(5-7-17)13-31(2)3;/h8-12,15,17,33H,4-7,13H2,1-3H3,(H,28,29);1H |
| Isómeros SMILES | CC(=O)C1=CN=C2C=CC(=NC2=C1NC3CCC(CC3)CN(C)C)C4=CC(=C(C(=C4)Cl)O)Cl.Cl |
| CAS alternativo | 1431698-10-0 |
| PubChem CID | 135565272 |
| Peso molecular | 523.88 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →| Solubilidad | DMSO : 33.33 mg/mL (63.62 mM; Need ultrasonic) H2O : 7.14 mg/mL (13.63 mM; Need ultrasonic) |
|---|---|
| Peso molecular | 523.900 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 6 |
| Exact Mass | 522.136 Da |
| Monoisotopic Mass | 522.136 Da |
| Topological Polar Surface Area | 78.400 Ų |
| Heavy Atom Count | 34 |
| Formal Charge | 0 |
| Complexity | 648.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 2 |