Skip to Content
Merck
All Photos(1)

Documents

Safety Information

SML0497

Sigma-Aldrich

BQCA

≥98% (HPLC)

Synonym(s):

1-(4-methoxybenzyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, Benzyl quinolone carboxylic acid

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C18H15NO4
CAS Number:
338747-41-4
Molecular Weight:
309.32
MDL number:
MFCD01315710
UNSPSC Code:
12352200
PubChem Substance ID:
329825446
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 10 mg/mL (clear solution)

storage temp.

2-8°C

SMILES string

COc1ccc(CN2C=C(C(O)=O)C(=O)c3ccccc23)cc1

InChI

1S/C18H15NO4/c1-23-13-8-6-12(7-9-13)10-19-11-15(18(21)22)17(20)14-4-2-3-5-16(14)19/h2-9,11H,10H2,1H3,(H,21,22)

InChI key

BZBBTGCKPRSPGF-UHFFFAOYSA-N

Biochem/physiol Actions

BQCA is a potent muscarinic M1 receptor positive allosteric modulator with selectivity for M1 over M2-M5. It potentiates M1 activity in in vitro and in vivo assays and is orally bioavailable. Muscarinic 1 (M1) receptors are expressed in brain regions responsible for attention and memory, including hippocampus, cortex, and striatum. BQCA binds allosterically to M1 to enhance the binding and efficacy of ACh at the receptor. M1 activation is a proposed mechanism for increasing information processing in disease states, such as Alzheimer′s. M1 agonists are being studied as potential therapeutic agents to treat Alzheimer′s disease and the cognitive and negative symptoms of schizophrenia. BQCA has been shown to improve performance in cognition tasks and increase cerebral blood flow.

Features and Benefits

This compound is a featured product for Neuroscience research. Click here to discover more featured Neuroscience products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is featured on the Acetylcholine Receptors (Muscarinic) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

SML0497-BULK:
SML0497-IP:
SML0497-50MG:
SML0497-VAR:
SML0497-10MG:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Kwok H C Choy et al.
The Journal of pharmacology and experimental therapeutics, 359(2), 354-365 (2016-09-16)
Current antipsychotics are effective in treating the positive symptoms associated with schizophrenia, but they remain suboptimal in targeting cognitive dysfunction. Recent studies have suggested that positive allosteric modulation of the M1 muscarinic acetylcholine receptor (mAChR) may provide a novel means
Emi Kurimoto et al.
The Journal of pharmacology and experimental therapeutics, 364(1), 28-37 (2017-10-14)
Activation of muscarinic M
Daniel P Holschneider et al.
Journal of neurotrauma, 36(14), 2233-2245 (2019-01-29)
We examined benzyl quinolone carboxylic acid (BQCA), a novel M1 muscarinic-positive allosteric modulator, for improving memory and motor dysfunction after cerebral cortical contusion injury (CCI). Adult mice received unilateral motorsensory cortical CCI or sham injury. Benzyl quinolone carboxylic acid (BQCA;
Tao Le et al.
Food chemistry, 175, 85-91 (2015-01-13)
An indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) and time-resolved fluoroimmunoassay (TR-FIA) based on an anti-N-butylquinoxaline-2-carboxamide (BQCA) monoclonal antibody were standardized and validated for quinoxaline-2-carboxylic acid (QCA) screening in animal tissues and its performance were compared to HPLC. The sensitivities obtained
Sara Bdioui et al.
Journal of receptor and signal transduction research, 39(2), 106-113 (2019-07-20)
Context: Drugs such as positive allosteric modulators (PAMs) produce complex behaviors when acting on tissues in different physiological contexts in vivo. Objective: This study describes the use of functional assays of varying receptor sensitivity to unveil the various behaviors of
View All Related Papers

Articles

Acetylcholine Receptors (Muscarinic)

Muscarinic acetylcholine receptors are G protein-coupled receptors (GPCRs) and mediate acetylcholine actions in the CNS and non-nervous tissues. Learn more about acetylcholine receptors and their role in cell signaling.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service