(-)MK-801 maleate

Catalog No. size PriceQuantity
M6655-2 2mg solid $133
M6655-10 10mg solid $532



Product Information

(-)MK-801 maleate is a noncompetitive antagonist of the NMDA receptor, as a less active enantiomer.


Chemical Formula: C20H19NO4


Exact Mass: 337.1314


Molecular Weight: 337.38


Elemental Analysis: C, 71.20; H, 5.68; N, 4.15; O, 18.97




(-)-MK 801 hydrogen maleate

(-)-MK 801 Maleate

(-)-MK 801 (Maleate)


Chemical Name: (5R,10S)-5-Methyl-10,11-dihydro-5H-5,10-epiminodibenzo[a,d][7]annulene maleate


InChi Key:



InChi Code: InChI=1S/C16H15N.C4H4O4/c1-16-13-8-4-2-6-11(13)10-15(17-16)12-7-3-5-9-14(12)16;5-3(6)1-2-4(7)8/h2-9,15,17H,10H2,1H3;1-2H,(H,5,6)(H,7,8)/b;2-1-/t15-,16+;/m0./s1


Smiles Code:




Technical Data:


Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.03.00


In Vitro:

(-)-Dizocilpine maleate ((-)-MK-801 maleate) significantly inhibited the uptake of all three (norepinephrine, dopamine and serotonin) monoamine transporters in a dose-dependent manner in HEK cells. The Ki values of (-)-Dizocilpine on the norepinephrine, dopamine and serotonin transporters are 3.7 μM, 40 μM and 47 μM, respectively.


In Vivo:

(-)-Dizocilpine maleate (0.1 mg/kg; intraperitoneal injection; male adult C57BL/6 mice) treatment induces rapid antidepressant effects in the social defeat stress model.





  1. Yang B, et al. Antidepressant Effects of (+)-MK-801 and (-)-MK-801 in the Social Defeat Stress Model. Int J Neuropsychopharmacol. 2016 Dec 30;19(12).


  1. Nishimura M, et al. MK-801 blocks monoamine transporters expressed in HEK cells. FEBS Lett. 1998 Feb 27;423(3):376-80.


Products are for research use only. Not for human use.

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