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Cat.No. 4746 - ML SA1 | C22H22N2O3 | CAS No. 332382-54-4
Description: Activator of TRPML channels
Chemical Name: 2-[2-(3,4-Dihydro-2,2,4-trimethyl-1(2H)-quinolinyl)-2-oxoethyl]-1H-isoindole-1,3(2H)-dione
Purity: ≥99% (HPLC)

Biological Activity

Activator of TRPML channels (TRPML1, 2 and 3); does not activate TRPM2, TRPV2, TRPV3, TRPC6 or TRPA1 channels. Induces TRPML-mediated Ca2+ release from lysosomes; activity corrects trafficking defects and reduces cholesterol accumulation in Niemann-Pick type C macrophages.

Technical Data

M. Wt 362.42
Formula C22H22N2O3
Storage Store at +4°C
Purity ≥99% (HPLC)
CAS Number 332382-54-4
PubChem ID 2880983
Smiles CC2CC(C)(C)N(C(CN3C(C(C=CC=C4)=C4C3=O)=O)=O)C1=CC=CC=C12

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 7.25 20

Preparing Stock Solutions

The following data is based on the product molecular weight 362.42. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.76 mL 13.8 mL 27.59 mL
5 mM 0.55 mL 2.76 mL 5.52 mL
10 mM 0.28 mL 1.38 mL 2.76 mL
50 mM 0.06 mL 0.28 mL 0.55 mL

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Product Datasheets

Safety Datasheet


References are publications that support the products' biological activity.

Shen et al (2012) Lipid storage disorders block lysosomal trafficking by inhibiting TRP channel and calcium release. Nat.Commun. 3 731 PMID: 22415822

Weiss et al (2012) Cross-talk between TRPML1 channel, lipids and lysosomal storage diseases. Commun.Integr.Biol. 5 111 PMID: 22808310

If you know of a relevant reference for ML SA1, please let us know.

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Keywords: ML SA1, supplier, MLSA1, trpml, transient, receptor, potential, channels, mucolipin, TRPML1, TRPML2, TRPML3, lysosomal, lysosome, storage, diseases, TRPML, TRPML, Tocris Bioscience

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Literature in this Area

Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* or download your copy today!

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Autophagy Scientific Review

Written by Patricia Boya and Patrice Codogno, this review summarizes the molecular mechanisms, physiology and pathology of autophagy. The role of autophagy in cell death and its links to disease are also discussed. Compounds available from Tocris are listed.


Autophagy Poster

Autophagy is a cellular process used by cells for degradation and recycling. Written by Patricia Boya and Patrice Codogno, this poster summarizes the molecular machinery, physiology and pathology of autophagy. Compounds available from Tocris are listed.