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Mpep hydrochloride

CAS No.
219911-35-0
Chemical Name:
Mpep hydrochloride
Synonyms
NSC1876;NSC-1876;NSC 1876;MPEP Hydrochloride, >98%;MPEP hydrochloride, 10 mM in DMSO;6-methyl-2-(phenylethynyl)pyridine;MPEP hydrochloride (DMSO Solution);MPEP hydrochloride, mGlu5 antagonist;Pyridine, 6-methyl-2-(phenylethynyl)-;2-methyl-6-(phenylethynyl)pyridine(MPEP)
CBNumber:
CB0498261
Molecular Formula:
C14H11N.ClH
Molecular Weight:
229.709
MDL Number:
MFCD02262119
MOL File:
219911-35-0.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:48:21

Mpep hydrochloride Properties

Melting point 145-146℃
storage temp. room temp
solubility DMSO: 10 mg/mL
form solid
color off-white
Stability Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 1 month.
InChI 1S/C14H11N.ClH/c1-12-6-5-9-14(15-12)11-10-13-7-3-2-4-8-13;/h2-9H,1H3;1H
InChIKey PKDHDJBNEKXCBI-UHFFFAOYSA-N
SMILES Cl.Cc1cccc(n1)C#Cc2ccccc2
FDA UNII AU9X845ZWM
UNSPSC Code 12352200
NACRES NA.77

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Flame (GHS02)
GHS07,GHS02
Signal word  Warning
Hazard statements  H320-H336-H226
Precautionary statements  P501-P261-P240-P210-P233-P243-P241-P242-P271-P264-P280-P370+P378-P337+P313-P305+P351+P338-P303+P361+P353-P304+P340+P312-P403+P233-P403+P235-P405
PPE Eyeshields, Gloves, type N95 (US)
WGK Germany  3
Storage Class 11 - Combustible Solids

Mpep hydrochloride price More Price(51)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich M5435 6-Methyl-2-(phenylethynyl)pyridine hydrochloride ≥98% (HPLC) 219911-35-0 5mg $126 2026-04-30 Buy
Sigma-Aldrich M5435 6-Methyl-2-(phenylethynyl)pyridine hydrochloride ≥98% (HPLC) 219911-35-0 25mg $427 2026-04-30 Buy
Cayman Chemical 14536 MPEP (hydrochloride) ≥98% 219911-35-0 5mg $54 2026-04-30 Buy
Cayman Chemical 14536 MPEP (hydrochloride) ≥98% 219911-35-0 10mg $91 2026-04-30 Buy
Cayman Chemical 14536 MPEP (hydrochloride) ≥98% 219911-35-0 25mg $209 2026-04-30 Buy
Product number Packaging Price Buy
M5435 5mg $126 Buy
M5435 25mg $427 Buy
14536 5mg $54 Buy
14536 10mg $91 Buy
14536 25mg $209 Buy

Mpep hydrochloride Chemical Properties, Uses, Production

Description

Glutamate, the major excitatory neurotransmitter in the brain, acts on both ionotropic and metabotropic glutamate receptors. Excessive metabotropic glutamate receptor (mGluR) transmission has been linked to epilepsy, ischemia, pain, anxiety, and depression. Eight subtypes (1-8) and multiple splice variants of the mGluR have been identified and grouped based on their pharmacological properties. Group I mGluRs (subtypes 1 and 5) activate the phosphatidyl inositol pathway, while Group II (2 and 3) and Group III (4, 6, 7 and 8) inhibit adenylyl cyclase. MPEP is a potent, highly selective non-competitive antagonist at the mGlu5a receptor subtype (IC50 = 36 nM) while having no agonist or antagonist activities at the mGlu1b receptor at concentrations up to 30 μM. MPEP is centrally active following systemic administration in vivo, inducing anxiolytic-like effects in rodent models of anxiety and depression when administered at 1-30 mg/kg. MPEP has also been reported as a positive allosteric modulator of mGluR4 at μM concentrations.

Uses

Glutamate, the major excitatory neurotransmitter in the brain, acts on both ionotropic and metabotropic glutamate receptors. Excessive metabotropic glutamate receptor (mGluR) transmission has been linked to epilepsy, ischemia, pain, anxiety, and depression. Eight subtypes (1-8) and multiple splice variants of the mGluR have been identified and grouped based on their pharmacological properties. Group I mGluRs (subtypes 1 and 5) activate the phosphatidyl inositol pathway, while Group II (2 and 3) and Group III (4, 6, 7 and 8) inhibit adenylyl cyclase. MPEP is a potent, highly selective non-competitive antagonist at the mGlu5a receptor subtype (IC50 = 36 nM) while having no agonist or antagonist activities at the mGlu1b receptor at concentrations up to 30 μM. MPEP is centrally active following systemic administration in vivo, inducing anxiolytic-like effects in rodent models of anxiety and depression when administered at 1-30 mg/kg. MPEP has also been reported as a positive allosteric modulator of mGluR4 at μM concentrations.

Uses

MPEP is a potent and highly selective non-competitive mGlu5a receptor antagonist (1,2). It is also a positive allosteric modulator at mGlu4 receptors.MPEP exhibits anxiolytic and antidepressant properties that may be applicable for treating schizophrenia (3).

Definition

ChEBI: A methylpyridine that coinsists of 2-methylp[yridine bearing an additional phenylethynyl group at position 6. Potent and highly selective non-competitive antagonist at the mGlu5 receptor subtype (IC50 = 36 nM) and positive allosteric modulator at mGlu4 receptors. Centrally active following systemic administration in vivo. Reverses mechanical hyperalgesia in the inflamed rat hind paw.

General Description

GRIN2B (glutamate ionotropic receptor NMDA type subunit 2B) codes for N-methyl d-aspartate receptor subtype 2B (GluN2B). It belongs to the N-methyl-D-aspartate receptor (NMDAR) gene family. It is located on chromosome 12p13.1.

Biochem/physiol Actions

GRIN2B (glutamate ionotropic receptor NMDA type subunit 2B) plays an important role in the growth of neurons and is highly essential for learning and memory. GRIN2B mutation is associated with neuropsychiatric and developmental disorders like schizophrenia, Parkinson′s disease and bipolar disorder. MPEP (2-methyl-6-(phenylethynyl)pyridinehydrochloride) is used to treat Alzheimer′s disease (AD).

in vitro

in recombinant expressed cells human mglu5a receptor, mpep inhibited quisqualate-stimulated phosphoinositide hydrolysis completely with an ic50 value of 36 nm whereas with no agonist or antagonist activities at cells expressing the human mglu1b receptor. mpep did not show agonist or antagonist activity on human mglu2, -3, -4a, -7b, and -8a receptors [1].

in vivo

in rat neonatal brain slices, mpep inhibited dhpg-stimulated phosphoinositide hydrolysis with a potency and selectivity similar to that observed on human mglu receptors. moreover, in extracellular recordings in the hippocampus ca1 area of anesthetized rats, the microiontophoretic application of dhpg induced neuronal firing that was blocked when mpep was administered [1].

IC 50

36 nm

storage

+4°C (desiccate)

References

[1] FABRIZIO GASPARINI . 2-Methyl-6-(phenylethynyl)-pyridine (MPEP), a potent, selective and systemically active mGlu5 receptor antagonist[J]. Neuropharmacology, 1999, 38 10: Pages 1493-1503. DOI:10.1016/s0028-3908(99)00082-9
[2] JESPER MOSOLFF MATHIESEN. Positive allosteric modulation of the human metabotropic glutamate receptor 4 (hmGluR4) by SIB-1893 and MPEP[J]. British Journal of Pharmacology, 2009, 138 6: 1026-1030. DOI:10.1038/sj.bjp.0705159
[3] NICOLAS MORIN . Effect of the metabotropic glutamate receptor type 5 antagonists MPEP and MTEP in parkinsonian monkeys[J]. Neuropharmacology, 2010, 58 7: Pages 981-986. DOI:10.1016/j.neuropharm.2009.12.024
[4] NICOLAS MORIN . MPEP, an mGlu5 receptor antagonist, reduces the development of l-DOPA-induced motor complications in de novo parkinsonian monkeys: Biochemical correlates[J]. Neuropharmacology, 2013, 66: Pages 355-364. DOI:10.1016/j.neuropharm.2012.07.036
[5] AUBIN MICHALON. Chronic pharmacological mGlu5 inhibition corrects fragile X in adult mice.[J]. Neuron, 2012, 74 1: 49-56. DOI:10.1016/j.neuron.2012.03.009
[6] YOAN MIHOV G H. Negative Allosteric Modulators of Metabotropic Glutamate Receptors Subtype 5 in Addiction: a Therapeutic Window.[J]. International Journal of Neuropsychopharmacology, 2016, 19 1. DOI:10.1093/ijnp/pyw002

Mpep hydrochloride Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 100)
Supplier Tel Email Country ProdList Advantage
BOC Sciences 1-631-485-4226; 16314854226 info@bocsci.com United States 9920 65
Haoyuan Chemexpress Co., Ltd. 021-58950125 info@chemexpress.com China 7545 61
MedChemexpress LLC 021-58955995 sales@medchemexpress.cn United States 4853 58
HangZhou YuHao Chemical Technology Co., Ltd. 0571-82693216 info@yuhaochemical.com China 1999 58
AdooQ Bioscience CHINA 025-58849295 info@adooq.cn China 2981 60
Shanghai JiYi Biotechnology Co. Ltd. 13621943973 sales@shjiyipharmatech.com China 1166 55
LETOPHARM LIMITED +86-21-5821 5861 sales@letopharm.com China 2374 58
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Shanghai Lollane Biological Technology Co.,Ltd. 021-52996696,15000506266 15000506266 China 4860 55
D&C Chemicals +86-21-58447131 1724405207@qq.com China 470 55

View Latest Price from Mpep hydrochloride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
MPEP HYDROCHLORIDE pictures 2026-07-27 MPEP HYDROCHLORIDE
219911-35-0
1KG 98% 1000kg Shaanxi Dideu New Materials Co. Ltd
MPEP HYDROCHLORIDE pictures 2020-01-03 MPEP HYDROCHLORIDE
219911-35-0
$1.00 1KG 99% 200kg Career Henan Chemical Co
MPEP hydrochloride/219911-35-0/99% purity with low price in stock pictures 2019-05-22 MPEP hydrochloride/219911-35-0/99% purity with low price in stock
219911-35-0
$1.00 1 KG 99% 20tons Hebei Jimi Trading Co., Ltd.

Mpep hydrochloride Spectrum

MPEP hydrochloride/219911-35-0/99% purity with low price in stock MPEP Hydrochloride, >98% 6-methyl-2-(phenylethynyl)pyridine 2-methyl-6-(phenylethynyl)pyridine(MPEP) Pyridine, 6-methyl-2-(phenylethynyl)- 6-Methyl-2-(phenylethynyl)pyridine hydrochloride Pyridine,2-methyl-6-(2-phenylethynyl)-, hydrochloride (1:1) MPVP replace pvp,White Crystal, New Stock! NSC 1876 NSC1876 NSC-1876 MPEP hydrochloride (DMSO Solution) MPEP hydrochloride, mGlu5 antagonist MPEP hydrochloride, 10 mM in DMSO 219911-35-0 Inhibitors Medical research