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CPI-203 is an orally available derivative of triazolothienodiazepine JQ-1; it exhibits no sedative or anxiolytic efficacy and is currently in development as a potential anticancer compound. Like JQ-1, CPI-203 inhibits the BET bromodomain (BRD) family of proteins, including BRD4; inhibition of this protein downregulates Myc expression and IL-6 production in vitro. This compound also inhibits phosphorylation of the carboxyl-terminus domain of RNA polymerase II.
| Cas No. | 1446144-04-2 |
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| Purity | ≥98% |
| Formula | C19H18ClN5OS |
| Formula Wt. | 399.90 |
| IUPAC Name | 2-[(9S)-7-(4-chlorophenyl)-4,5,13-trimethyl-3-thia-1,8,11,12-tetrazatricyclo[8.3.0.02,6]trideca-2(6),4,7,10,12-pentaen-9-yl]acetamide |
| Synonym | CPI203 |
| Melting Point | 151.8°C |
| Solubility | DMSO 79 mg/mL warmed (197.54 mM) Ethanol 5 mg/mL (12.5 mM) Water Insoluble |
| Appearance | White to off white powder |
| Store Temp | Ambient |
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| Ship Temp | Ambient |
| MSDS | |
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| Info Sheet |
King B, Trimarchi T, Reavie L, et al. The ubiquitin ligase FBXW7 modulates leukemia-initiating cell activity by regulating MYC stability. Cell. 2013 Jun 20;153(7):1552-66. PMID: 23791182.
Devaiah BN, Lewis BA, Cherman N, et al. BRD4 is an atypical kinase that phosphorylates serine2 of the RNA polymerase II carboxy-terminal domain. Proc Natl Acad Sci U S A. 2012 May 1;109(18):6927-32. PMID: 22509028.