Selfotel  (Synonyms: CGS 19755)

Selfotel (CGS 19755) is a selective and competitive antagonist at N-methyl-D-aspartate (NMDA)-preferring receptor. CGS 19755 inhibits the binding of [3H]-3-(2-carboxypiperazin-4-yl)propyl-1-phosphonic acid to NMDA-type receptors with an IC₅₀ of 50 nM^[1][2].

IC50: 50 nM (the binding of [3H]-3-(2-carboxypiperazin-4-yl)propyl-1-phosphonic acid to NMDA-type receptors)^[2].

Selfotel (CGS 19755) results in a concentration-dependent reduction in neuronal death as assessed by phase-contrast microscopy and by measurement of LDH release into the bathing medium 20-24 h later. The mean (±SD) ED₅₀ for CGS 19755 against NMDA toxicity is 25.4 ± 30.8 μM, determined from 6 experiments, each using 4 cultures per condition^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Selfotel (CGS 19755) administered p.o. by gavage has little or no effect in these test procedures. In an experimental model of anxiety in rats^[1].
Selfotel (CGS 19755) significantly increases conflict responding within a relatively narrow dose range (minimum effective dose, 1.73 mg/kg i.p.)^[1].
Selfotel (CGS 19755) blocks the harmaline-induced increase in cerebellar cyclic GMP levels at a dose of 4 mg/kg i.p. with duration of action exceeding 2 hr^[2].
Selfotel (CGS 19755) inhibits convulsions elicited by maximal electroshock in rat (ED₅₀ = 3.8 mg/kg i.p. 1 hr after administration) and in mouse (ED₅₀ = 2.0 mg/kg i.p. 0.5 hr after administration)^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

223.16

C₇H₁₄NO₅P

110347-85-8

Solid

Off-white to light yellow

O=C([C@@H]1NCC[C@H](CP(O)(O)=O)C1)O

Room temperature in continental US; may vary elsewhere.

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

• [1]. D A Bennett, et al. Behavioral pharmacological profile of CGS 19755, a competitive antagonist at N-methyl-D-aspartate receptors. J Pharmacol Exp Ther. 1989 Aug;250(2):454-60.  [Content Brief]

  [2]. J Lehmann, et al. CGS 19755, a selective and competitive N-methyl-D-aspartate-type excitatory amino acid receptor antagonist. J Pharmacol Exp Ther. 1988 Jul;246(1):65-75.  [Content Brief]

  [3]. M A Pérez-Pinzón, et al. Correlation of CGS 19755 neuroprotection against in vitro excitotoxicity and focal cerebral ischemia. J Cereb Blood Flow Metab. 1995 Sep;15(5):865-76.  [Content Brief]