Bioactivity | (1S,2S)-ML-SI3 is the trans-isomer of ML-SI3, a TRPML inhibitor. The (-)-isomer is a potent inhibitor of TRPML1 and TRPML2 (IC50=1.6 μM/2.3 μM) and a weak inhibitor of TRPML3 (IC50=12.5 μM), whereas the (+)-enantiomer is an inhibitor on TRPML1 (IC50=5.9 μM), but an activator on TRPML 2 and 3[1]. |
Target | IC50: 1.6 μM (TRPML1), 2.3 μM (TRPML2), 12.5 (TRPML3) for the (-)-isome of (1S,2S)-ML-SI3; 5.9 μM (TRPML1) for the (+)-enantiomer |
Name | (1S,2S)-ML-SI3 |
CAS | 2563870-87-9 |
Formula | C23H31N3O3S |
Molar Mass | 429.58 |
Appearance | Solid |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | 4°C, protect from light *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light) |
Reference | [1]. Leser C, et al. Chemical and pharmacological characterization of the TRPML calcium channel blockers ML-SI1 and ML-SI3. Eur J Med Chem. 2021 Jan 15;210:112966. |