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NMDA (N-Methyl-D-aspartic acid)

Alias: LC488A; LC488 A;LC488-A; LC 488A; LC-488A
Cat No.:V1086 Purity: ≥98%
NMDA (N-Methyl-D-aspartic acid; LC488A; LC488 A;LC488-A; LC 488A; LC-488A) is an aspartic acid analog withan N-methyl substituent and D-configuration and a glutamate-like excitatory chemical substance.
NMDA (N-Methyl-D-aspartic acid)
NMDA (N-Methyl-D-aspartic acid) Chemical Structure CAS No.: 6384-92-5
Product category: GluR
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

NMDA (N-Methyl-D-aspartic acid; LC488A; LC488 A; LC488-A; LC 488A; LC-488A) is an aspartic acid analog with an N-methyl substituent and D-configuration and a glutamate-like excitatory chemical substance. It acts as a potent and specific agonist for NMDA receptor mimicking the action of glutamate, which is a neurotransmitter acting at NMDA receptors.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
Regardless of the incubation temperature, NMDA dramatically increases adrenal binding in a concentration-dependent manner [2].
ln Vivo
NMDA (0.2 nM) had a substantial effect on MF, IF, IL, and EL, reducing installation and insertion frequency while shortening insertion and ejaculation times. During the 30-minute mating test, NMDA and AP-5 significantly increased and decreased ejaculation behavior, respectively. Bilateral microinjection of NMDA into the PVN significantly raised baseline LSNA, with the greatest rise happening within 5 minutes [1].
Animal Protocol
0.20 nmol in 100 nL saline
Rats: Thirty male rats are paired with different receptive females for a total of three times (once every 3 days) a week prior to the experiment, only the males that ejaculated at least three times during this period are included. After selecting the male rats with normal ejaculatory ability. Saline (100 nL), NMDA (0.20 nmol in 100 nL saline), and AP-5 (10.0 nmol in 100 nL saline) are adminitration into the bilateral PVN of each male rat in random order. After 5 min, the behavioral testing is performed and recorded as described above. Copulatory behaviors occur once a week and the entire experiment lasted 4 weeks.
References

[1]. Centrally mediated ejaculatory response via sympathetic outflow in rats: role of N-methyl-D-aspartic acid receptors in paraventricular nucleus. Andrology. 2016 Nov 16.

[2]. Enhancement of [3H]glutamate binding by N-methyl-D-aspartic acid in rat adrenal. Brain Res. 1987 Mar 17;406(1-2):24-31.

[3]. Decrease of growth and differentiation factor 10 contributes to neuropathic pain through N-methyl-D-aspartate receptor activation. Neuroreport. 2017 May 24;28(8):444-450.

Additional Infomation
N-methyl-D-aspartic acid is an aspartic acid derivative having an N-methyl substituent and D-configuration. It has a role as a neurotransmitter agent. It is a D-alpha-amino acid, a D-aspartic acid derivative, an amino dicarboxylic acid and a secondary amino compound.
An amino acid that, as the D-isomer, is the defining agonist for the NMDA receptor subtype of glutamate receptors (RECEPTORS, NMDA).
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C5H9NO4
Molecular Weight
147.13
Exact Mass
147.053
CAS #
6384-92-5
Related CAS #
6384-92-5
PubChem CID
22880
Appearance
White to off-white solid powder
Density
1.3±0.1 g/cm3
Boiling Point
258.2±30.0 °C at 760 mmHg
Melting Point
187-192 °C
Flash Point
110.0±24.6 °C
Vapour Pressure
0.0±1.1 mmHg at 25°C
Index of Refraction
1.494
LogP
-0.44
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
5
Rotatable Bond Count
4
Heavy Atom Count
10
Complexity
145
Defined Atom Stereocenter Count
1
SMILES
CN[C@H](CC(=O)O)C(=O)O
InChi Key
HOKKHZGPKSLGJE-GSVOUGTGSA-N
InChi Code
InChI=1S/C5H9NO4/c1-6-3(5(9)10)2-4(7)8/h3,6H,2H2,1H3,(H,7,8)(H,9,10)/t3-/m1/s1
Chemical Name
(2R)-2-(methylamino)butanedioic acid
Synonyms
LC488A; LC488 A;LC488-A; LC 488A; LC-488A
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 5 mg/mL (33.98 mM)
Water:30 mg/mL (203.9 mM)
Ethanol:<1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 1 mg/mL (6.80 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 10.0 mg/mL clear DMSO stock solution to 400 μL of PEG300 and mix evenly; then add 50 μL of Tween-80 to the above solution and mix evenly; then add 450 μL of normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 1 mg/mL (6.80 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 10.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 1 mg/mL (6.80 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 10.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


Solubility in Formulation 4: 36.67 mg/mL (249.24 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 6.7967 mL 33.9836 mL 67.9671 mL
5 mM 1.3593 mL 6.7967 mL 13.5934 mL
10 mM 0.6797 mL 3.3984 mL 6.7967 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT06183788 Recruiting Behavioral: Remote cognitive
rehabilitation program
Anti-NMDA Receptor Encephalitis Fundacion Clinic per a la Recerca Biomédica January 16, 2023 Not Applicable
NCT05977023 Recruiting Drug: NMDAE
Drug: Placebo Cap
Bipolar I Disorder China Medical University Hospital October 4, 2023 Phase 2
NCT05136755 Recruiting Drug: NMDAE
Drug: Placebo Cap
Major Depressive Disorder China Medical University Hospital January 25, 2022 Phase 2
NCT04745143 Recruiting Drug: NMDAE
Drug: Placebo Cap
Schizophrenia China Medical University Hospital January 1, 2018 Phase 2
NCT02950233 Terminated Drug: NMDA active
Drug: Steroid active
Drug: NMDA placebo
Drug: Steroid placebo
Pain, Postoperative Population Health Research Institute May 4, 2017 Phase 3
Biological Data
  • NMDA (N-Methyl-D-aspartic acid)

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