Dopamine Receptor Activator

Dihydroergotamine mesylate is a blood-brain barrier-permeable semi-synthetic ergot alkaloid, acting as a full agonist of 5-HT1B/1D receptors (K_i values of 0.3 nM and 2.5 nM, respectively; functional IC₅₀ values of 2 nM and 2.2 nM, respectively). Dihydroergotamine mesylate inhibits Forskolin (HY-15371)-stimulated cAMP accumulation, possesses α-adrenergic receptor antagonistic activity and weak dopaminergic agonistic activity. It mediates intracranial cerebrovascular contraction, inhibits the release of neuropeptides such as CGRP/substance P, and suppresses neurogenic inflammation by activating 5-HT1B/1D receptors in the trigeminovascular system. Dihydroergotamine mesylate binds to the catalytic site of Trypanosoma cruzi trypanothione reductase and exhibits trypanocidal activity in vitro. Dihydroergotamine mesylate can be used in studies related to migraine and trypanosome infections.

Hordenine (Ordenina; Peyocactine) is a multifunctional alkaloid with oral activity and blood-brain barrier penetration. Hordenine inhibits LPS-induced phosphorylation of p38, JNK, ERK1/2, p65, IκB, and AKT, prevents p65 nuclear translocation, and suppresses inflammatory cytokines and mediators. Hordenine promotes M2 macrophage polarization, restores blood-milk barrier integrity, alleviates oxidative stress by reducing ROS and MDA, and attenuates LPS-induced lung injury and pulmonary edema. Hordenine inhibits cAMP production, CREB phosphorylation, and MITF expression, thereby suppressing melanin synthesis in melanocytes and reconstructed epidermis. Hordenine activates the Wnt/β-catenin signaling pathway, promotes dermal papilla cell proliferation and hair shaft elongation, and accelerates hair regeneration. Hordenine activates DRD2, acts as a D3R partial agonist, α2A-AR full agonist, and 5-HT2A-R antagonist, and inhibits SERT and DAT. Hordenine inhibits α-synuclein accumulation and ameliorates motor deficits in Parkinson's disease models. Hordenine limits alcohol intake, reduces relapse drinking behavior, and modulates alcohol-induced conditioned place preference. Hordenine can be used for research on mastitis, skin pigmentation, acute lung injury, foodborne diseases, hair loss, Parkinson's disease, bacterial infections, and alcohol use disorder.

DL-Dopa is a dopamine precursor. It serves as a substrate for Mushroom Tyrosinase, which oxidizes it to dopaquinone, an intermediate in the DOPA-melanin polymerization process, and this reaction can be detected at 475 nm. DL-Dopa also forms synergistic hydrophobic and π-π stacking interactions with cationic surfactants. Its binding to cetylpyridinium chloride (HY-B1464) is stronger and exhibits better thermodynamic stability than its binding to benzalkonium chloride (HY-B2232). DL-Dopa can compensate for dopamine depletion in the brain and is applicable to research related to Parkinson's disease.

N-Palmitoyl dopamine (PALDA) is a endogenous, long-chain, linear fatty acid dopamide, which is inactive on TRPV1. N-Palmitoyl dopamine displays 'entourage' effects on endovanilloids N-arachidonoyl-dopamine (NADA) and anandamide.

Quinpirole (LY 171555; (-)-LY 141865) is a D2/D3 dopamine receptor agonist and a CaV1.3 calcium channel modulator. Quinpirole normalizes dendritic spine density in dopamine-depleted striatum, upregulates the protein expression of BCL2 and GluR2, downregulates the protein expression of BAX, and delays the onset of seizures. Quinpirole enhances learning and memory, inhibits neuronal apoptosis (apoptosis), and induces anxiety-like, stereotyped, and compulsive behaviors. Quinpirole disrupts prepulse inhibition in rhesus monkeys, enhances the activity of paraventricular thalamic neurons to promote recovery from Isoflurane anesthesia, and alters the composition of the gut microbiota in rats. Quinpirole can be used in research related to dyskinesia, pain, epilepsy, and neurological disorders including anxiety disorder, obsessive-compulsive disorder, and schizophrenia.

Octodrine (2-Amino-6-methylheptane) is a central nervous stimulant that increases the uptake of dopamine and noradrenaline. Octodrine is found to increase the pain threshold, cardiac rate (positive chronotropic effect) and myocardial contractility (positive inotropic effect).

Hordenine hydrochloride (Ordenina hydrochloride; Peyocactine hydrochloride) is a multifunctional alkaloid with oral activity and blood-brain barrier penetration. Hordenine hydrochloride inhibits LPS-induced phosphorylation of p38, JNK, ERK1/2, p65, IκB, and AKT, prevents p65 nuclear translocation, and suppresses inflammatory cytokines and mediators. Hordenine hydrochloride promotes M2 macrophage polarization, restores blood-milk barrier integrity, alleviates oxidative stress by reducing ROS and MDA, and attenuates LPS-induced lung injury and pulmonary edema. Hordenine hydrochloride inhibits cAMP production, CREB phosphorylation, and MITF expression, thereby suppressing melanin synthesis in melanocytes and reconstructed epidermis. Hordenine hydrochloride activates the Wnt/β-catenin signaling pathway, promotes dermal papilla cell proliferation and hair shaft elongation, and accelerates hair regeneration. Hordenine hydrochloride activates DRD2, acts as a D3R partial agonist, α2A-AR full agonist, and 5-HT2A-R antagonist, and inhibits SERT and DAT. Hordenine hydrochloride inhibits α-synuclein accumulation and ameliorates motor deficits in Parkinson's disease models. Hordenine hydrochloride limits alcohol intake, reduces relapse drinking behavior, and modulates alcohol-induced conditioned place preference. Hordenine hydrochloride can be used for research on mastitis, skin pigmentation, acute lung injury, foodborne diseases, hair loss, Parkinson's disease, bacterial infections, and alcohol use disorder.

Hordenine-d₆ (Ordenina-d₆; Peyocactine-d₆) is the deuterated-labeled Hordenine (HY-N0113). Hordenine (Ordenina; Peyocactine) is a multifunctional alkaloid with oral activity and blood-brain barrier penetration. Hordenine inhibits LPS-induced phosphorylation of p38, JNK, ERK1/2, p65, IκB, and AKT, prevents p65 nuclear translocation, and suppresses inflammatory cytokines and mediators. Hordenine promotes M2 macrophage polarization, restores blood-milk barrier integrity, alleviates oxidative stress by reducing ROS and MDA, and attenuates LPS-induced lung injury and pulmonary edema. Hordenine inhibits cAMP production, CREB phosphorylation, and MITF expression, thereby suppressing melanin synthesis in melanocytes and reconstructed epidermis. Hordenine activates the Wnt/β-catenin signaling pathway, promotes dermal papilla cell proliferation and hair shaft elongation, and accelerates hair regeneration. Hordenine activates DRD2, acts as a D3R partial agonist, α2A-AR full agonist, and 5-HT2A-R antagonist, and inhibits SERT and DAT. Hordenine inhibits α-synuclein accumulation and ameliorates motor deficits in Parkinson's disease models. Hordenine limits alcohol intake, reduces relapse drinking behavior, and modulates alcohol-induced conditioned place preference. Hordenine can be used for research on mastitis, skin pigmentation, acute lung injury, foodborne diseases, hair loss, Parkinson's disease, bacterial infections, and alcohol use disorder.

Mefexamide (ANP-297) hydrochloride is a psychostimulant psychopharmaceutical and aryloxyacetic acid derivative antidepressant with dopaminergic activity. Mefexamide hydrochloride can be used for the research of depression.

Octodrine (2-Amino-6-methylheptane) is a central nervous activator that increases the uptake of dopamine and noradrenaline. Octodrine is found to increase the pain threshold, cardiac rate (positive chronotropic effect) and myocardial contractility (positive inotropic effect).

Pirepemat (IRL752) is a corticalpreferring catecholamine- and cognition-promoting agent. Pirepemat (IRL752) is used for the study of Parkinson's disease. IRL752 is a selective enhancer of cortical dopamine, acetylcholine and norepinephrine.

2'-O-Methylisoliquiritigenin, isolated from the Arachis species, up-regulates 5-HT, NE, DA and GABA pathways, but does not put a very significant effect on ne NE pathway.

RB 101 is a blood-brain barrier-crossing prodrug as well as aminopeptidase N and neutral endopeptidase-24.11 inhibitor. RB 101 blocks enkephalin breakdown, elevates extracellular enkephalin levels and activate δ-opioid receptor and dopamine D1 receptor. RB 101 can be used for the research of pain, depressive syndromes, and diabetic neuropathy.

Dopamine-¹³C,¹⁵N (hydrochloride) is the ¹³C and ¹⁵N labeled Dopamine hydrochloride.

Docarpamine is an orally active dopamine prodrug that can be hydroxylated in the small intestine and liver to form active dopamine. Docarpamine mainly activates D1-like receptors in peripheral blood vessels to lower blood pressure and heart rate in a state of spontaneous hypertension. Docarpamine exerts a pressor and tachycardic effect by activating D1-like receptors, vasopressin V1 receptors, and α-adrenergic receptors in normal blood pressure conditions. Docarpamine can be used for research on renal vascular dilation and diuresis.

Hordenine-d₆ hydrochloride (Ordenina-d₆ hydrochloride; Peyocactine-d₆ hydrochloride) is the deuterated-labeled Hordenine hydrochloride (HY-N0113B). Hordenine hydrochloride (Ordenina hydrochloride; Peyocactine hydrochloride) is a multifunctional alkaloid with oral activity and blood-brain barrier penetration. Hordenine hydrochloride inhibits LPS-induced phosphorylation of p38, JNK, ERK1/2, p65, IκB, and AKT, prevents p65 nuclear translocation, and suppresses inflammatory cytokines and mediators. Hordenine hydrochloride inhibits melanin synthesis in melanocytes and reconstructed epidermis. Hordenine hydrochloride activates the Wnt/β-catenin signaling pathway. Hordenine hydrochloride activates DRD2, acts as a D3R partial agonist, α2A-AR full agonist, and 5-HT2A-R antagonist, and inhibits SERT and DAT. Hordenine hydrochloride inhibits α-synuclein accumulation and ameliorates motor deficits in Parkinson's disease models. Hordenine hydrochloride limits alcohol intake, reduces relapse drinking behavior. Hordenine hydrochloride can be used for research on mastitis, skin pigmentation, acute lung injury, foodborne diseases, hair loss, Parkinson's disease, bacterial infections, and alcohol use disorder.

Dihydroergotamine-d₃ is the d₃-labeled Dihydroergotamine (HY-B0670). Dihydroergotamine (DFN-19) is a blood-brain barrier-permeable semi-synthetic ergot alkaloid, acting as a full agonist of 5-HT1B/1D receptors (K_i values of 0.3 nM and 2.5 nM, respectively; functional IC₅₀ values of 2 nM and 2.2 nM, respectively). Dihydroergotamine inhibits Forskolin (HY-15371)-stimulated cAMP accumulation, possesses α-adrenergic receptor antagonistic activity and weak dopaminergic agonistic activity. It mediates intracranial cerebrovascular contraction, inhibits the release of neuropeptides such as CGRP/substance P, and suppresses neurogenic inflammation by activating 5-HT1B/1D receptors in the trigeminovascular system. Dihydroergotamine binds to the catalytic site of Trypanosoma cruzi trypanothione reductase and exhibits trypanocidal activity in vitro. Dihydroergotamine can be used in studies related to migraine and trypanosome infections.

Hordenine (Standard) (Ordenina (Standard); Peyocactine (Standard)) is the analytical standard of Hordenine (HY-N0113). This product is intended for research and analytical applications. Hordenine (Ordenina; Peyocactine) is a multifunctional alkaloid with oral activity and blood-brain barrier penetration. Hordenine inhibits LPS-induced phosphorylation of p38, JNK, ERK1/2, p65, IκB, and AKT, prevents p65 nuclear translocation, and suppresses inflammatory cytokines and mediators. Hordenine promotes M2 macrophage polarization, restores blood-milk barrier integrity, alleviates oxidative stress by reducing ROS and MDA, and attenuates LPS-induced lung injury and pulmonary edema. Hordenine inhibits cAMP production, CREB phosphorylation, and MITF expression, thereby suppressing melanin synthesis in melanocytes and reconstructed epidermis. Hordenine activates the Wnt/β-catenin signaling pathway, promotes dermal papilla cell proliferation and hair shaft elongation, and accelerates hair regeneration. Hordenine activates DRD2, acts as a D3R partial agonist, α2A-AR full agonist, and 5-HT2A-R antagonist, and inhibits SERT and DAT. Hordenine inhibits α-synuclein accumulation and ameliorates motor deficits in Parkinson's disease models. Hordenine limits alcohol intake, reduces relapse drinking behavior, and modulates alcohol-induced conditioned place preference. Hordenine can be used for research on mastitis, skin pigmentation, acute lung injury, foodborne diseases, hair loss, Parkinson's disease, bacterial infections, and alcohol use disorder.

Hordenine hydrochloride (Standard) (Ordenina hydrochloride (Standard); Peyocactine hydrochloride (Standard)) is the analytical standard of Hordenine hydrochloride (HY-N0113B). This product is intended for research and analytical applications. Hordenine hydrochloride (Ordenina hydrochloride; Peyocactine hydrochloride) is a multifunctional alkaloid with oral activity and blood-brain barrier penetration. Hordenine hydrochloride inhibits LPS-induced phosphorylation of p38, JNK, ERK1/2, p65, IκB, and AKT, prevents p65 nuclear translocation, and suppresses inflammatory cytokines and mediators. Hordenine hydrochloride inhibits melanin synthesis in melanocytes and reconstructed epidermis. Hordenine hydrochloride activates the Wnt/β-catenin signaling pathway. Hordenine hydrochloride activates DRD2, acts as a D3R partial agonist, α2A-AR full agonist, and 5-HT2A-R antagonist, and inhibits SERT and DAT. Hordenine hydrochloride inhibits α-synuclein accumulation and ameliorates motor deficits in Parkinson's disease models. Hordenine hydrochloride limits alcohol intake, reduces relapse drinking behavior. Hordenine hydrochloride can be used for research on mastitis, skin pigmentation, acute lung injury, foodborne diseases, hair loss, Parkinson's disease, bacterial infections, and alcohol use disorder.

RS-51324 is an oral active antidepressant agent. RS-51324 inhibitts norepinephrine uptake and reverses of Reserpine (HY-N0480)-induced hypothermia.