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Description: Positive allosteric modulator of M1 receptors
Chemical Name: 1,4-Dihydro-1-[(4-methoxyphenyl)methyl]-4-oxo-3-quinolinecarboxylic acid
Purity: ≥98% (HPLC)
Literature (2)

Biological Activity for BQCA

BQCA is a muscarinic M1 receptor positive allosteric modulator (pKB 5.76 - 5.82). Exhibits selectivity for M1 over M3 and M5 receptors. Enhances ACh effects at M1 receptors in an IP1- accumulation assay, without affecting ACh binding. Increases markers of neuronal activation in brains of wild-type but not M1-/- mice in vivo. Prevents Scopolamine (Cat. No. 1414)-induced memory deficits in mice in a contextual fear conditioning model.

Technical Data for BQCA

M. Wt 309.32
Formula C18H15NO4
Storage Store at -20°C
Purity ≥98% (HPLC)
CAS Number 338747-41-4
PubChem ID 1476756
Smiles COC1=CC=C(CN2C=C(C(O)=O)C(=O)C3=CC=CC=C23)C=C1

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data for BQCA

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 6.19 20 with gentle warming

Preparing Stock Solutions for BQCA

The following data is based on the product molecular weight 309.32. 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
0.2 mM 16.16 mL 80.82 mL 161.64 mL
1 mM 3.23 mL 16.16 mL 32.33 mL
2 mM 1.62 mL 8.08 mL 16.16 mL
10 mM 0.32 mL 1.62 mL 3.23 mL

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References for BQCA

References are publications that support the biological activity of the product.

Khajehali et al (2018) Probing the binding site of novel selective positive allosteric modulators at the M1 muscarinic acetylcholine receptor. Biochem.Pharmacol 154 243 PMID: 29777683

Ma et al (2009) Selective activation of the M1 muscarinic acetylcholine receptor achieved by allosteric potentiation. Proc.Natl.Acad.Sci.U.S.A. 106 15950 PMID: 19717450

If you know of a relevant reference for BQCA, please let us know.

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Keywords: BQCA, BQCA supplier, benzyl, quinolone, carboxylic, acid, muscarinic, M1, mAChR, positive, allosteric, modulator, PAM, Receptors, 6872, Tocris Bioscience

Citations for BQCA

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Literature in this Area

Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* your copy today!

*Please note that Tocris will only send literature to established scientific business / institute addresses.

Alzheimer's Disease Poster

Alzheimer's Disease Poster

Alzheimer's disease (AD) is a debilitating and progressive neurodegenerative disease and the most common cause of dementia, affecting approximately 30% of individuals aged over 85 years. This poster summarizes the cellular and molecular mechanisms of AD.

Learning & Memory Poster

Learning & Memory Poster

Recognition memory enables us to make judgements about whether or not we have encountered a particular stimulus before. This poster outlines the cellular mechanisms underlying recognition memory and its links to long-term depression, as well as the use of pharmacological intervention to assess the role of neurotransmitters in recognition memory.