Onalespib

Onalespib is a selective inhibitor of Hsp90 (IC50 = 18 nM). It induces the degradation of specific Hsp90 client proteins, including mutant EGFR, for up to seven days in tumor cell lines in vitro and up to three days in vivo. Onalespib is retained in tumor xenografts and is efficacious in a range of xenograft models.Formal Name: [1,3-dihydro-5-[(4-methyl-1-piperazinyl)methyl]-2H-isoindol-2-yl][2,4-dihydroxy-5-(1-methylethyl)phenyl]-methanone. CAS Number: 912999-49-6. Synonyms: AT-13387. Molecular Formula: C24H31N3O3. Formula Weight: 409.5. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 30 mg/ml, DMF:PBS (pH 7.2) (1:5): 0.16 mg/ml, DMSO: 20 mg/ml, Ethanol: 10 mg/ml. lambdamax: 259, 293 nm. SMILES: OC1=CC(O)=C(C(C)C)C=C1C(N2CC(C=CC(CN3CCN(C)CC3)=C4)=C4C2)=O. InChi Code: InChI=1S/C24H31N3O3/c1-16(2)20-11-21(23(29)12-22(20)28)24(30)27-14-18-5-4-17(10-19(18)15-27)13-26-8-6-25(3)7-9-26/h4-5,10-12,16,28-29H,6-9,13-15H2,1-3H3. InChi Key: IFRGXKKQHBVPCQ-UHFFFAOYSA-N.