Chemical Structure : TAS1440
Catalog No.: PC-26423Not For Human Use, Lab Use Only.
TAS1440 (TAS-1440) is a potent, selectve, histone H3-competitive non-covalent LSD1 inhibitor with IC50 of 4.8 nM, disrupts INSM1-LSD1 complex activating tumor-suppressive pathways.
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TAS1440 (TAS-1440) is a potent, selectve, histone H3-competitive non-covalent LSD1 inhibitor with IC50 of 4.8 nM, disrupts INSM1-LSD1 complex activating tumor-suppressive pathways.
TAS1440 shows high selectivity over related amine oxidases (LSD2, MAO‑A, MAO‑B; all IC50> 10,000 nM) and a broader panel of epigenetic enzymes (e.g., JARID1A, DNMT1, EZH1/EED/SUZ12, HDAC1, JMJD2B/3, PRMT4).
TAS1440 engages the H3‑binding pocket of LSD1.
TAS1440 induces a coordinated reprogramming of gene expression (INSM1 and SMAD2) characterized by activation of NOTCH/TGF‑β pathways and suppression of the neuroendocrine program in SCLC‑A.
TAS1440 suppressed proliferation in INSM1/ASCL1-high SCLC-A cells and induced tumor regression in xenografts.
| M.Wt | 475.54 | |
| Formula | C28H27F2N3O2 | |
| Appearance | Solid | |
| Storage |
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| Solubility |
10 mM in DMSO |
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1. Machida T, et al. Nat Commun. 2026 Mar 25. doi: 10.1038/s41467-026-70984-1.

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