Date published: 2025-10-15

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MAO-B Inhibitors

Monoamine oxidase B (MAO-B) is an enzyme predominantly located in the outer mitochondrial membrane of glial cells in the central nervous system, as well as in peripheral tissues. It plays a crucial role in the catabolism of monoamine neurotransmitters such as dopamine, phenylethylamine, and benzylamine, thereby regulating their levels within the synaptic cleft and influencing neural activity and neuromodulation. The function of MAO-B extends beyond the mere breakdown of monoamines; it is also involved in the generation of reactive oxygen species as by-products of the deamination process, which has implications for oxidative stress and neuronal aging. The regulation of MAO-B activity is, therefore, of significant interest in the context of neurological function and dysfunction, with its activity finely balanced to ensure optimal levels of monoamine neurotransmitters are maintained for proper neuronal communication and plasticity. Dysregulation of MAO-B activity can lead to altered monoaminergic signaling, implicated in various neuropsychiatric and neurodegenerative disorders, underscoring the enzyme's critical role in brain health. The inhibition of MAO-B is a process that directly impacts the enzyme's ability to catalyze the oxidative deamination of monoamine neurotransmitters, leading to increased availability of these neurochemicals in the synaptic cleft. Inhibition can occur through different mechanisms, including competitive, non-competitive, and irreversible binding to the enzyme's active site. These interactions block MAO-B from accessing its substrates, effectively reducing the rate of monoamine catabolism and the associated production of hydrogen peroxide, a by-product of the deamination reaction. This decrease in monoamine breakdown and reactive oxygen species generation can have significant implications for neuronal signaling and oxidative stress. The specific inhibition of MAO-B, as opposed to MAO-A, offers a targeted approach to modulate the monoaminergic system, particularly dopaminergic signaling, without substantially affecting the metabolism of other neurotransmitters like serotonin. Understanding the molecular basis of MAO-B inhibition allows for the exploration of regulatory mechanisms that could influence neurophysiological processes and neuroprotection, highlighting the enzyme's importance in neural health and the consequences of its altered activity.

Items 21 to 25 of 25 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Nialamide

51-12-7sc-253186
1 g
$98.00
(0)

Nialamide functions as a selective MAO-B inhibitor, distinguished by its unique aromatic amine structure that allows for specific π-π stacking interactions with the enzyme's active site. The presence of nitrogen atoms contributes to hydrogen bonding, enhancing binding stability. Its electron-rich framework can modulate the enzyme's redox state, potentially influencing reaction kinetics and substrate availability, thereby impacting metabolic pathways in a nuanced manner.

Isatin

91-56-5sc-205721
sc-205721A
100 g
500 g
$63.00
$276.00
(0)

Isatin exhibits notable interactions as a MAO-B inhibitor, characterized by its ability to form strong hydrogen bonds due to its carbonyl and nitrogen functionalities. This compound can engage in hydrophobic interactions with the enzyme, promoting a stable binding conformation. Its planar structure facilitates π-π interactions, which may alter the enzyme's conformation and affect substrate affinity, ultimately influencing the catalytic efficiency and metabolic dynamics within the system.

trans 2-(Phenyl-d5)-cyclopropylamine Hydrochloride

107077-98-5sc-220292
1 mg
$290.00
(0)

Trans 2-(Phenyl-d5)-cyclopropylamine Hydrochloride demonstrates intriguing behavior as a MAO-B inhibitor through its unique cyclopropyl structure, which introduces ring strain that can enhance binding affinity. The presence of deuterated phenyl groups allows for distinct isotopic effects, potentially influencing reaction kinetics. Its ability to engage in both steric and electronic interactions with the enzyme's active site may modulate conformational dynamics, impacting overall enzymatic activity and substrate processing.

Bifemelane hydrochloride

62232-46-6sc-203529
sc-203529A
10 mg
50 mg
$280.00
$800.00
(0)

Bifemelane hydrochloride exhibits notable characteristics as a MAO-B inhibitor, primarily due to its unique structural features that facilitate selective enzyme interaction. The compound's specific functional groups enable it to form stable hydrogen bonds and hydrophobic interactions within the active site, enhancing its binding efficiency. Additionally, its stereochemistry may influence the enzyme's conformational flexibility, potentially altering substrate accessibility and catalytic efficiency in metabolic pathways.

Rasagiline-13C3 Mesylate

1391052-18-8sc-477172
sc-477172A
1 mg
10 mg
$410.00
$3000.00
(0)

Rasagiline-13C3 Mesylate is characterized by its stable isotopic labeling, which allows for precise tracking in metabolic studies. Its unique structure facilitates specific interactions with MAO-B, enhancing selectivity in enzyme binding. The compound's kinetic profile reveals a rapid onset of inhibition, influenced by its conformational flexibility. Additionally, the presence of the mesylate group contributes to its solubility and reactivity, impacting its behavior in various chemical environments.