Top quality and High purity N-Methyl-D-aspartic    

       acid(NMDA) for Nootropics CAS 6384-92-5                  

 N-Methyl-D-Aspartic acid (NMDA) is a synthetic agonist of the NMDA receptor that mimics the binding action of the endogenous ligand glutamate. The NMDA receptor is a voltage-gated ion channel closely involved in memory, in spatial learning and perturbing the normal behavior of this receptor system with NMDA exposure has facilitated elucidation of NMDA receptor-mediated activities.

N-Methyl-D-Aspartic acid (NMDA) is a glutamate-like excitatory substance and is a particularly potent excitant. NMDA binds to NMDA-receptor and interacts with it. This interaction causes a conformational change in the receptor or associated membrane molecules, which opened pores to allow extracellular sodium ions to flow down their electrochemical gradient and depolarise the cell. However, NMDA is proved to be a poor substrate for the uptake transporters, suggesting that the excitatory effect could not be an indirect consequence of glutamate uptake. Besides that, NMDA is found to increase intracellular calcium and release arachidonic acid, both of which generate oxygen radicals, subsequently inducing neuronal death. 

Qingdao Sigma Chemical Co., Ltd.is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

The aim of Qingdao Sigma Chemical Co., Ltd is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.

Qingdao Sigma Chemical Co., Ltd has become the "Top 500 Chinese manufacturing companies",

"Top 20 of global chemical sales".Qingdao Sigma Chemical Co., Ltdhas 21 subsidiaries and holding companies.

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