Biological Activity
A potent D2 dopamine receptor selective antagonist, with affinities of 2.4, 100 and 220 nM for D2, D3 and D4 receptors respectively. Centrally active following systemic administration in vivo.
Licensing Information
Sold with the permission of Merck Sharp and Dohme Ltd.
Technical Data
| M. Wt | 340.85 |
| Formula | C20H21ClN2O |
| Storage | Store at RT |
| Purity | ≥98% (HPLC) |
| CAS Number | 81226-60-0 |
| PubChem ID | 133633 |
| InChI Key | LLBLNMUONVVVPG-UHFFFAOYSA-N |
| Smiles | OC1(CCN(CC2=CNC3=CC=CC=C23)CC1)C1=CC=C(Cl)C=C1 |
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 | |
|---|---|---|---|
| Solubility | |||
| DMSO | 34.09 | 100 | |
| ethanol | 34.09 | 100 |
Preparing Stock Solutions
The following data is based on the product molecular weight 340.85. 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 | 2.93 mL | 14.67 mL | 29.34 mL |
| 5 mM | 0.59 mL | 2.93 mL | 5.87 mL |
| 10 mM | 0.29 mL | 1.47 mL | 2.93 mL |
| 50 mM | 0.06 mL | 0.29 mL | 0.59 mL |
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Product Datasheets
References
References are publications that support the products' biological activity.
Bowery et al (1996) Antagonism of the effects of (+)-PD 128907 on midbrain dopamine neurones in rat brain slices by a selective D2 receptor antagonist L-741,626. Br.J.Pharmacol. 119 1491 PMID: 8968560
Kulagowski et al (1996) 3-[[4-(4-Chlorophenyl)piperazin-1-yl]methyl]-1H-pyrrolo[2,3-b]pyridine: an antagonist with high affinity and selectivity for the human dopamine D4 receptor. J.Med.Chem. 39 1941 PMID: 8642550
Millan et al (2000) S33084, a novel, potent, selective, and competitive antagonist at dopamine D3-receptors: II. Functional and behavioral profile compared with GR218,231 and L741,626. J.Pharmacol.Exp.Ther. 293 1063 PMID: 10869411
Pillai et al (1998) Human D2 and D4 dopamine receptors couple through βγ G-protein subunits to inwardly rectifying K+ channels (GIRK1) in a Xenopus oocyte expression system: selective antagonism by L-741,626 and L-745,870 r Neuropharmacology 37 983 PMID: 9833627
Keywords: L-741,626, supplier, High, affinity, D2, antagonists, Dopamine, Receptors, dopaminergic, L741742, D2, Receptors, D2, Receptors, Tocris Bioscience
