382185
HDAC Inhibitor XXII, NCH51
Thioisobutyric acid
(S-(6-(4-phenyl-2-thiazolylcarbamoyl)hexyl) ester
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25 May 2012
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A cell-permeable S-isobutyryl prodrug that is processed intracellularly to form the potent HDAC inhibitor NCH-31 (IC50 = 48 and 170 nM, respectively, using partially purified HDAC1 or HeLa nuclear extract) that is predicted to exhibit a similar HADC binding mode as that of SAHA with its sulfhydryl replacing SAHA's hydroxamate as the active-site zinc-targeting group. NCH-51 is shown to exhibit comparable antiproliferative (mean IC50 = 3.8 µM vs. 3.7 µM for SAHA; 48 h treatment) and apoptotic activity as SAHA against various cancer cell lines, but not PBMCs from 4 healthy individuals (IC50 >30 µM with either drug), and the antioxidant N-Acetyl-L-Cysteine (NAC; Cat. No. 106425) at 2 mM is reported to abolish the cell-growth inhibition caused by either 3 µM NCH-51 or SAHA in the Multiple Myeloma U266 cultures. Half-life in human plasma at 37 °C = 24 h.
| Product information | |||
|---|---|---|---|
| Form | White powder | ||
| Molar mass | 390.6 | ||
| Purity | ≥97% by HPLC | ||
| Solubility | DMSO | ||
| Chemical formula | C20H26N2O2S2 | ||
| CAS number | 848354-66-5 | ||
| Store and ship information | |||
|---|---|---|---|
| Storage | -20°C | ||
| Ship |
Shipped with Blue Ice or with Dry Ice
Regulatory Review |
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