Monastrol

Monastrol is a reversible, cell-permeable inhibitor of the motor protein Eg5 (kinesin family protein 11, Kif11), blocking basal ATPase activity in vitro (IC50 = 6.1 µM) and inducing the formation of monoastral spindles in cell-based assays (IC50 = 51.3 µM). It arrests cells in mitosis without targeting tubulin and, as a result, does not interfere with microtubule dependent processes. Monastrol induces activation of the spindle assembly checkpoint and the resulting mitotic arrest can lead to cell death in certain tumor cell lines.Formal Name: 1,2,3,4-tetrahydro-4-(3-hydroxyphenyl)-6-methyl-2-thioxo-5-pyrimidinecarboxylic acid, ethyl ester. CAS Number: 329689-23-8. Synonyms: (±)-Monastrol. Molecular Formula: C14H16N2O3S. Formula Weight: 292.4. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 20 mg/ml, DMF:PBS(pH 7.2)(1:1): 0.5 mg/ml, DMSO: 14 mg/ml, Ethanol: 1 mg/ml. lambdamax: 310 nm. SMILES: S=C1NC(C2=CC(O)=CC=C2)C(C(OCC)=O)=C(C)N1. InChi Code: InChI=1S/C14H16N2O3S/c1-3-19-13(18)11-8(2)15-14(20)16-12(11)9-5-4-6-10(17)7-9/h4-7,12,17H,3H2,1-2H3,(H2,15,16,20). InChi Key: LOBCDGHHHHGHFA-UHFFFAOYSA-N.