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 11 to 20 of 25 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Lazabemide hydrochloride

103878-83-7sc-202208
sc-202208A
10 mg
50 mg
$79.00
$446.00
(0)

Lazabemide hydrochloride selectively inhibits monoamine oxidase B (MAO-B) through specific interactions that stabilize the enzyme's conformation. Its unique structural features allow for effective steric hindrance, which disrupts substrate access to the active site. The compound's electron-donating characteristics may alter the enzyme's redox potential, thereby influencing the kinetics of neurotransmitter metabolism. This modulation can lead to distinct effects on enzymatic activity and metabolic regulation.

N-Methyl-N-propargylbenzylamine

555-57-7sc-236062
5 g
$67.00
(0)

N-Methyl-N-propargylbenzylamine, an older MAO-B inhibitor, operates by inhibiting the enzyme's activity.

8-(3-Chlorostyryl)caffeine

147700-11-6sc-203786
sc-203786A
10 mg
50 mg
$209.00
$362.00
7
(1)

8-(3-Chlorostyryl)caffeine exhibits selective inhibition of monoamine oxidase B (MAO-B) through unique molecular interactions that enhance binding affinity. Its chlorostyryl group introduces steric bulk, effectively blocking substrate entry and altering the enzyme's active site dynamics. The compound's electron-withdrawing properties may influence the enzyme's catalytic efficiency, impacting the overall reaction kinetics and metabolic pathways associated with neurotransmitter degradation.

Rasagiline Mesylate

161735-79-1sc-206071
sc-206071A
25 mg
100 mg
$165.00
$290.00
(0)

Rasagiline Mesylate functions as a selective inhibitor of monoamine oxidase B (MAO-B) by engaging in specific molecular interactions that stabilize its binding to the enzyme. The presence of the mesylate group enhances solubility and facilitates unique conformational changes in the enzyme, which may alter substrate accessibility. This compound's kinetic profile suggests a slow, sustained inhibition, potentially affecting the enzyme's turnover rate and influencing metabolic flux in related biochemical pathways.

Mofegiline hydrochloride

120635-25-8sc-269606
sc-269606A
250 mg
1 g
$1300.00
$2889.00
(0)

Mofegiline hydrochloride acts as a selective MAO-B inhibitor, characterized by its unique ability to form stable interactions with the enzyme's active site. The hydrochloride moiety enhances its solubility, promoting effective diffusion in biological systems. Its kinetic behavior indicates a competitive inhibition mechanism, where it modulates the enzyme's affinity for substrates, potentially leading to altered metabolic dynamics. This compound's structural features may also influence enzyme conformational states, impacting overall activity.

rac Rasagiline-13C3 Mesylate

sc-219877
1 mg
$430.00
(0)

Rasagiline-13C3 Mesylate is a selective MAO-B inhibitor that exhibits unique isotopic labeling, allowing for detailed metabolic tracking in biochemical studies. Its mesylate group enhances solubility and stability, facilitating interactions with the enzyme's active site. The compound demonstrates distinct reaction kinetics, characterized by a non-linear inhibition profile that may influence substrate turnover rates. Additionally, its molecular structure may induce specific conformational changes in the enzyme, affecting catalytic efficiency.

1-Hydrazinophthalazine Hydrochloride

304-20-1sc-206167
10 g
$280.00
(0)

1-Hydrazinophthalazine Hydrochloride acts as a selective MAO-B inhibitor, showcasing unique molecular interactions that enhance its binding affinity to the enzyme. Its hydrazine moiety facilitates hydrogen bonding, promoting stability within the active site. The compound's distinct electronic properties may influence electron transfer mechanisms, altering reaction kinetics. Furthermore, its structural conformation can induce specific allosteric effects, potentially modulating enzyme activity and substrate accessibility.

Safinamide mesylate

202825-46-5sc-364754
sc-364754A
5 mg
25 mg
$88.00
$273.00
(0)

Safinamide mesylate functions as a selective MAO-B inhibitor, characterized by its unique structural features that enhance enzyme interaction. The presence of a mesylate group contributes to its solubility and stability, while the compound's rigid framework allows for optimal spatial orientation within the active site. This configuration may facilitate specific electrostatic interactions, influencing the enzyme's conformational dynamics and modulating substrate binding efficiency.

1,2-benzoxazol-3-ylmethanesulfonamide

68291-97-4sc-339184
sc-339184A
250 mg
1 g
$162.00
$331.00
(0)

1,2-benzoxazol-3-ylmethanesulfonamide exhibits selective inhibition of MAO-B through its distinctive benzoxazole moiety, which enhances π-π stacking interactions with aromatic residues in the enzyme's active site. The sulfonamide group promotes hydrogen bonding, stabilizing the enzyme-inhibitor complex. Its unique electronic properties may influence reaction kinetics, potentially altering the enzyme's catalytic efficiency and substrate specificity, thereby impacting metabolic pathways.

4-Oxo-4H-1-benzopyran-2-carboxylic acid

4940-39-0sc-238937
5 g
$39.00
(0)

4-Oxo-4H-1-benzopyran-2-carboxylic acid acts as a selective MAO-B inhibitor, characterized by its unique chromone structure that facilitates strong hydrophobic interactions within the enzyme's active site. The carboxylic acid group enhances solubility and promotes ionic interactions, which may modulate the enzyme's conformational dynamics. This compound's distinct electronic configuration can influence binding affinity and alter the enzyme's overall activity, affecting metabolic processes.