- References (15)
Product nameCNQX disodium salt, AMPA / kainate antagonist
DescriptionAMPA / kainate antagonist; water soluble
Biological descriptionWater soluble, potent, competitive AMPA / kainate receptor antagonist. Also antagonist at NMDA receptor glycine site.
Also available in simple stock solutions (ab144488) - add 1 ml of water to get an exact, ready-to-use concentration.
Chemical name1,2,3,4-Tetrahydro-7-nitro-2,3-dioxoquinoxaline-6-carbonitrile disodium
Storage instructionsStore at +4°C. Store under desiccating conditions. The product can be stored for up to 12 months.
Solubility overviewSoluble in water to 25 mM
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Our Abpromise guarantee covers the use of ab120044 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|Functional Studies||Use at an assay dependent concentration.|
ab96379 staining MEK1 (phospho S298) in SK-N-SH cells treated with CNQX disodium salt (ab120044), by ICC/IF. Decrease in MEK1 (phospho S298) expression correlates with increased concentration of CNQX disodium salt, as described in literature.
The cells were incubated at 37°C for 24h in media containing different concentrations of ab120044 (CNQX disodium salt) in DMSO, fixed with 4% formaldehyde for 10 minutes at room temperature and blocked with PBS containing 10% goat serum, 0.3 M glycine, 1% BSA and 0.1% tween for 2h at room temperature. Staining of the treated cells with ab96379 (1/100 dilution) was performed overnight at 4°C in PBS containing 1% BSA and 0.1% tween. A DyLight 488 goat anti-rabbit polyclonal antibody (ab96899) at 1/250 dilution was used as the secondary antibody.
This product has been referenced in:
- Long SK et al. Effect of 6-cyano-2,3-dihydroxy-7-nitro-quinoxaline (CNQX) on dorsal root-, NMDA-, kainate- and quisqualate-mediated depolarization of rat motoneurones in vitro. Br J Pharmacol 100:850-4 (1990). Read more (PubMed: 1976402) »
- Honoré T et al. Quinoxalinediones: potent competitive non-NMDA glutamate receptor antagonists. Science 241:701-3 (1988). Read more (PubMed: 2899909) »
- Birch PJ et al. 6,7-Dinitro-quinoxaline-2,3-dion and 6-nitro,7-cyano-quinoxaline-2,3-dion antagonise responses to NMDA in the rat spinal cord via an action at the strychnine-insensitive glycine receptor. Eur J Pharmacol 156:177-80 (1988). Read more (PubMed: 2905271) »