OTSSP167 (OTS167)

This product is for research use only, not for human use. We do not sell to patients.

OTSSP167 (OTS167)
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Size Price Stock
250mg$885Check With Us
500mg$1450Check With Us
1g$2175Check With Us

Cat #: V1961 CAS #: 1431697-89-0 Purity ≥ 98%

Description: OTSSP167 (OTSSP-167; OTS167; OTS-167) is a highly potent, orally bioavailable inhibitor of MELK (maternal embryonic leucine zipper kinase) with anticancer activity.

References: Chung S, Suzuki H, Miyamoto T, et al. Development of an orally-administrative MELK-targeting inhibitor that suppresses the growth of various types of human cancer. Oncotarget. 2012 Dec 21.

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Molecular Weight (MW)487.42
Molecular FormulaC25H28Cl2N4O2
CAS No.1431697-89-0
Storage-20℃ for 3 years in powder formr
-80℃ for 2 years in solvent
Solubility In VitroDMSO: <1 mg/mLr
Water: <1 mg/mLr
Ethanol: <1 mg/mL
SMILES CodeCC(C1=C(N[C@H]2CC[C@H](CN(C)C)CC2)C3=NC(C4=CC(Cl)=C(O)C(Cl)=C4)=CC=C3N=C1)=O
SynonymsOTS167; OTS167; OTSSP 167; OTS-167; OTSSP-167; OTS 167.
ProtocolIn VitroOTSSP167 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.
In VivoOTSSP167 (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.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Preparing Stock Solutions
Solvent volume to be added Mass (the weight of a compound)
Mother liquor concentration 1mg5mg10mg20mg
1mM2.0516 mL10.2581 mL20.5162 mL41.0324 mL
5mM0.4103 mL2.0516 mL4.1032 mL8.2065 mL
10mM0.2052 mL1.0258 mL2.0516 mL4.1032 mL
20mM0.1026 mL0.5129 mL1.0258 mL2.0516 mL
Quality Control Documentation
The molarity calculator equation
Mass(g) = Concentration(mol/L) × Volume(L) × Molecular Weight(g/mol)
Mass
=
Concentration
×
Volume
×
Molecular Weight*
The dilution calculator equation
Concentration(start) × Volume(start) = Concentration(final) × Volume(final)

This equation is commonly abbreviated as: C1 V1 = C2 V2

Concentration(start)
C1
×
Volume(start)
V1
=
Concentration(final)
C2
×
Volume(final)
V2
Step One: Enter information below
Dosage mg/kg Average weight of animals g Dosing volume per animal µL Number of animals
Step Two: Enter the in vivo formulation
%DMSO + % + %Tween 80 + %ddH2O

Calculation Results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in µL DMSO(Master liquid concentration mg/mL) ,Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation: Take µL DMSO master liquid, next add µL PEG300, mix and clarify, next add µL Tween 80,mix and clarify, next add µL ddH2O,mix and clarify.
Note:
  • (1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
  • (2) Be sure to add the solvent(s) in order.