Toggle Nav
  • Menu
  • Setting

(+)-MK 801 Maleate

Catalog No.
Potent NMDA antagonist
Grouped product items
SizePriceStock Qty
10mM (in 1mL DMSO)
In stock
In stock
In stock

Tel: +1-832-696-8203

Email: [email protected]

Worldwide Distributors


(+)-MK 801 is a potent antagonist of NMDA with Ki value of 30.5nM [1].

MK 801 is a potent anticonvulsant exhibits both anxiolytic and sympathomimetic properties. It is found to be a noncompetitive antagonist of NMDA. MK 801 can penetrate into the central nervous system. In the in vitro assay, MK 801 binds to rat cerebral cortical membrane with high affinity in a saturable manner. This binding is reversible even when the concentration of MK 801 is up to 100μM. It is also found that the binding shows a regional specificity. Most of these binding sites are located in the hippocampus. In rat cortical-slice preparations, MK 801 causes a potent blockade of depolarizing responses to NMDA with a high selectivity. This effect is persistent. The blockade can also cause a suppression of the epileptiform activity induced by tetrodotoxin or other neurotoxin [1].

[1] Wong EH, Kemp JA, Priestley T, Knight AR, Woodruff GN, Iversen LL . The anticonvulsant MK-801 is a potent N-methyl-D-aspartate antagonist. Proc Natl Acad Sci U S A. 1986 Sep;83(18):7104-8.

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
Cas No.77086-22-7
Solubility≥16.85mg/mL in DMSO; ≥5.12mg/ml in H20; ≥28.5mg/ml in EtOH
Chemical Name(5S,10R)-5-methyl-10,11-dihydro-5H-5,10-epiminodibenzo[a,d][7]annulene maleate
SDFDownload SDF
Canonical SMILESC[[email protected]]1(N2)C3=C(C=CC=C3)C[[email protected]@H]2C4=C1C=CC=C4.O=C(O)/C=C\C(O)=O
Shipping ConditionEvaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.
General tipsFor obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.


Cell experiment [1]:

Cell lines

Primary mixed neuronal/glial cultures from fetal rat brains.

Preparation method

The solubility of this compound in DMSO is >16.9mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months.

Reacting condition

10 μM for 30 minutes


NMDA induced apoptosis in mixed neuronal/glial cell cultures. In the presence of a mild excitotoxic insult, this investigation showed an attenuation of apoptotic cell death by MK 801.

Animal experiment [2]:

Animal models

C57BL/6; BALB/c mice

Dosage form

s.c. or i.p., 0.1 mg kg(-1)


MK 801 in the chronically C57BL/6 chronic stress group that prevented weight gain deficit. For the C57BL/6 strain chronic MK 801 produced an alteration of the fur state. In the CA1 layer of chronically stressed C57BL/6 mice, MK 801 induced an increase of VGLUT1 immunoreactivity. For the BALB/c group, MK 801 enhanced BDNF mRNA in the chronic stress group in the DG. In the chronically stressed BALB/c mice, MK 801 prevented stressed induced VGLUT3 immunoreactivity up-regulation in the CA3 layer.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.


[1]. Wise-Faberowski L,Pearlstein RD,Warner DS., et al. NMDA-induced apoptosis in mixed neuronal/glial cortical cell cultures: the effects of isoflurane and dizocilpine. J Neurosurg Anesthesiol.2006 Oct;18(4):240-6.

[2] .Farley S, Dumas S, El Mestikawy S ., et al. Increased expression of the Vesicular Glutamate Transporter-1 (VGLUT1) in the prefrontal cortex correlates with differential vulnerability to chronic stress in various mouse strains: effects of fluoxetine and MK-801. Neuropharmacology. 2012 Jan;62(1):503-17.

Quality Control

Chemical structure

(+)-MK 801 Maleate