WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 522402

CAS#: 161230-88-2

Description: MDL-105519 is a high affinity NMDA glutamate receptor antagonist at the glycine site. MDL 105,519 prevented harmaline-stimulated increases in cerebellar cyclic GMP content, providing biochemical evidence of NMDA receptor antagonism in vivo. This antagonism was associated with anticonvulsant activity in genetically based, chemically induced, and electrically mediated seizure models.

Chemical Structure

CAS# 161230-88-2

Theoretical Analysis

MedKoo Cat#: 522402
Name: MDL-105519
CAS#: 161230-88-2
Chemical Formula: C18H11Cl2NO4
Exact Mass: 375.00651
Molecular Weight: 376.18
Elemental Analysis: C, 57.47; H, 2.95; Cl, 18.85; N, 3.72; O, 17.01

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Pricing updated 2021-02-26. Prices are subject to change without notice.

MDL-105519 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Synonym: MDL-105519; MDL 105519; MDL105519; MDL105,519; MDL-105,519; MDL 105,519

IUPAC/Chemical Name: (E)-3-(2-carboxy-2-phenylvinyl)-4,6-dichloro-1H-indole-2-carboxylic acid


InChi Code: InChI=1S/C18H11Cl2NO4/c19-10-6-13(20)15-12(16(18(24)25)21-14(15)7-10)8-11(17(22)23)9-4-2-1-3-5-9/h1-8,21H,(H,22,23)(H,24,25)/b11-8+

SMILES Code: ClC1=C2C(NC(C(O)=O)=C2/C=C(C3=CC=CC=C3)/C(O)=O)=CC(Cl)=C1

Solid powder

>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).

Soluble in DMSO, not in water

Shelf Life:
>2 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:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 376.18 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Kakuda T, Nozawa A, Sugimoto A, Niino H. Inhibition by theanine of binding of [3H]AMPA, [3H]kainate, and [3H]MDL 105,519 to glutamate receptors. Biosci Biotechnol Biochem. 2002 Dec;66(12):2683-6. PubMed PMID: 12596867.

2: Sharma TA, Reynolds IJ. Complex polyamine effects on [3H]MDL 105,519 binding to the NMDA receptor glycine site. Neurochem Int. 1998 Aug;33(2):155-9. PubMed PMID: 9761459.

3: Chazot PL, Reiss C, Chopra B, Stephenson FA. [3H]MDL 105,519 binds with equal high affinity to both assembled and unassembled NR1 subunits of the NMDA receptor. Eur J Pharmacol. 1998 Jul 17;353(1):137-40. PubMed PMID: 9721050.

4: Höfner G, Wanner KT. Characterisation of the binding of [3H]MDL 105,519, a radiolabelled antagonist for the N-methyl-D-aspartate-associated glycine site, to pig cortical brain membranes. Neurosci Lett. 1997 Apr 25;226(2):79-82. PubMed PMID: 9159494.

5: Baron BM, Harrison BL, Kehne JH, Schmidt CJ, van Giersbergen PL, White HS, Siegel BW, Senyah Y, McCloskey TC, Fadayel GM, Taylor VL, Murawsky MK, Nyce P, Salituro FG. Pharmacological characterization of MDL 105,519, an NMDA receptor glycine site antagonist. Eur J Pharmacol. 1997 Apr 4;323(2-3):181-92. PubMed PMID: 9128837.

6: Siegel BW, Sreekrishna K, Baron BM. Binding of the radiolabeled glycine site antagonist [3H]MDL 105,519 to homomeric NMDA-NR1a receptors. Eur J Pharmacol. 1996 Oct 3;312(3):357-65. PubMed PMID: 8894619.

7: Baron BM, Siegel BW, Harrison BL, Gross RS, Hawes C, Towers P. [3H]MDL 105,519, a high-affinity radioligand for the N-methyl-D-aspartate receptor-associated glycine recognition site. J Pharmacol Exp Ther. 1996 Oct;279(1):62-8. PubMed PMID: 8858976.