SR 33805 oxalate

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Cat.No. 1806 - SR 33805 oxalate | C32H40N2O5S.C2H2O4 | CAS No. 121346-33-6
Description: Ca2+ channel blocker; binds allosterically to distinct site on L-type channels
Chemical Name: 3,4-Dimethoxy-N-methyl-N-[3-[4-[[1-methyl-3-(1-methylethyl)-1H-indol-2-yl]sulfonyl]phenoxy]propyl]benzeneethanamine
Purity: ≥99% (HPLC)

Biological Activity

Potent Ca2+ channel antagonist; binds allosterically to the a1-subunit of L-type Ca2+ channels (Kd = 20 pM), at a site distinct from other types of blocker. Shows some selectivity for vascular smooth muscle, inducing vasorelaxation without producing inotropic or chronotropic effects. Inhibits PDGF-stimulated smooth muscle cell proliferation.

Compound Libraries

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Technical Data

M. Wt 654.77
Formula C32H40N2O5S.C2H2O4
Storage Store at RT
Purity ≥99% (HPLC)
CAS Number 121346-33-6
PubChem ID 21256218
Smiles O=C(O)C(O)=O.O=S(C2=C(C(C)C)C1=CC=CC=C1N2C)(C3=CC=C(OCCCN(C)CCC4=CC=C(OC)C(OC)=C4)C=C3)=O

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 56.47 100

Preparing Stock Solutions

The following data is based on the product molecular weight 654.77. 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 1.53 mL 7.64 mL 15.27 mL
5 mM 0.31 mL 1.53 mL 3.05 mL
10 mM 0.15 mL 0.76 mL 1.53 mL
50 mM 0.03 mL 0.15 mL 0.31 mL

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Product Datasheets

Safety Datasheet


References are publications that support the products' biological activity.

Chatelain et al (1993) In vitro characterization of a novel Ca2+ entry blocker: SR 33805. Eur.J.Pharmacol. 246 181 PMID: 8223943

Magnier-Gaubil et al (1996) Smooth muscle cell cycle and proliferation. Relationship between calcium influx and sarco-endoplasmic reticulum Ca2+ATPase regulation. J.Biol.Chem. 271 27788 PMID: 8910375

Romey and Lazdunski (1994) Effects of a new class of calcium antagonists, SR33557 (fantofarone) and SR33805, on neuronal voltage-activated Ca++ channels. J.Pharmacol.Exp.Ther. 271 1348 PMID: 7996445

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Keywords: SR 33805 oxalate, supplier, Ca2+, channel, blockers, L-type, Calcium, CaV, Channels, voltage-gated, voltage-dependent, SR33805, oxalate, Voltage-gated, Calcium, Channels, Voltage-gated, Calcium, Channels, Tocris Bioscience

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