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L-DOPA- 13C is the 13C labeled L-DOPA[1]. L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease[2][3][4].
6-Hydroxy-DOPA is a selective and effective allosteric inhibitor of the RAD52 ssDNA binding domain. 6-Hydroxy-DOPA can be used for the research of cancer .
L-DOPA-2,5,6-d3 is the deuterium labeled L-DOPA. L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain[1][2][3].
L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease .
L-DOPA (Levodopa) sodium is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA sodium can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA sodium has anti-allodynic effects, and can be used for Parkinson's disease research .
L-DOPA (Standard) is the analytical standard of L-DOPA. This product is intended for research and analytical applications. L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease .
L-DOPA-d6 is the deuterium labeled L-DOPA. L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease[1][2][3].
3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine .
L-DOPA- 13C6 is the 13C-labled L-DOPA . L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease .
3-O-Methyl-DL-DOPA is an endogenous metabolite present in Cerebrospinal_Fluid that can be used for the research of Epilepsy, Purine Nucleoside Phosphorylase Deficiency and Aromatic L Amino Acid Decarboxylase Deficiency .
Etilevodopa (L-Dopa ethyl ester), an ethyl-ester proagent of Levodopa, is rapidly hydrolyzed to Levodopa and ethanol by nonspecific esterases in the gastrointestinal tract. Etilevodopa is used for the treatment of Parkinson disease (PD). Levodopa is the direct precursor of dopamine and is a suitable proagent as it facilitates CNS penetration and delivers dopamine .
Etilevodopa (L-Dopa ethyl ester) hydrochloride, an ethyl-ester proagent of Levodopa, is rapidly hydrolyzed to Levodopa and ethanol by nonspecific esterases in the gastrointestinal tract. Etilevodopa hydrochloride is used for the treatment of Parkinson disease (PD). Levodopa is the direct precursor of dopamine and is a suitable proagent as it facilitates CNS penetration and delivers dopamine .
3-O-Methyldopa-d3 is deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].
3-O-Methyldopa-d3 (hydrate) is the deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].
α-Methyl-p-tyrosine is a competitive inhibitor of the enzyme tyrosine hydroxylase, which converts tyrosine to Levodopa (DOPA). α-Methyl-p-tyrosine is an orally active inhibitor of catecholamine synthesis which inhibits the hydroxylation of tyrosine to DOPA .
Nebicapone (BIA 3-202), a reversible catechol-O-methyltransferase (COMT) inhibitor, is mainly metabolized by glucuronidation. Nebicapone is mainly peripherally acting inhibitor that decreases the biotransformation of L-DOPA to 3-O-methyl-DOPA by inhibition of COMT, and it is potential for the treatment of Parkinson's disease .
DMNB (6-Nitroveratraldehyde), a precursor, can be used for the synthesis no-carrier-added 6-[ 18F]fluoro-L-DOPA (6-FDOPA). No-Carrier-Added (NCA) 6-[18F]fluoro-L-dopa (6-FDOPA) is being produced routinely for PET investigations of dopaminergic systems .
Phenylthiourea (Phenylthiocarbamide) is an inhibitor of phenoloxidase. Phenylthiourea inhibits enzymatic oxidation of DOPA by phenoloxidase (Ki: 0.21?μM) .
(R)-3-O-Methyldopa-d3 is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].
(R)-3-O-Methyldopa-d3 (hydrochloride) is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].
LY 165163 is a potent 5-HT presynaptic receptor agonist. LY 165163 significantly decreases 5-HTP accumulation and increases DOPA accumulation in the cortex and striatum .
3-(2,4-Dihydroxyphenyl)propanoic acid (DPPacid) is a potent and competitive tyrosinase inhibitor, inhibits L-Tyrosine and DL-DOPA with an IC50 and a Ki of 3.02 μM and 11.5 μM, respectively .
6-Hydroxykaempferol, a flavonoid, is a competitive tyrosinase inhibitor with an IC50 value of 124 μM. 6-Hydroxykaempferol has a Ki value of 148 μM relative to L-DOPA as a substrate and effectively inhibits the activity of the enzyme by binding to the active site of the enzyme .
Vanicoside E is an antioxidant and antitumor agent. Vanicoside E inhibits L-Tyrosine (HY-N0473) and L-DOPA (HY-N0304) with IC50s of 45.23 μM and 189.96 μM, respectively .
Tyrosinase-IN-11 is a potent tyrosinase inhibitor with IC50s of 50 nM and 64 nM for L-tyrosinase and L-dopa, respectively. Tyrosinase-IN-11 has significant antioxidant activity and low cytotoxicity. Tyrosinase-IN-11 has the potential for skin hyperpigmentation research .
Tyrosinase-IN-22 (compound 4) is an inhibitor of tyrosinase substrates (L-tyrosine and L-dopa) with IC50s of 60 nM and 30 nM, respectively. Tyrosinase-IN-22 also shows potent antioxidant and anti-melanogenic properties, thus can be used for relevant researches .
Idazoxan hydrochloride (RX 781094 hydrochloride) is an α2-adrenoceptor antagonist and is also a imidazoline receptors (IRs) antagonist competitively antagonized the centrally induced hypotensive effect of imidazoline-like agents (IMs). Idazoxan hydrochloride also improves motor symptoms in Parkinson’s disease, L-DOPA-induced dyskinesias, and experimental Parkinsonism .
CTAP is a potent, highly selective, and BBB penetrant μ opioid receptor antagonist, with an IC50 of 3.5 nM. CTAP displays over 1200-fold selectivity over δ opioid (IC50=4500 nM) and somatostatin receptors. CTAP can be used for the study of L-DOPA-induced dyskinesia (LID) and opiate overdose or addiction .
CTAP TFA is a potent, highly selective, and BBB penetrant μ opioid receptor antagonist, with an IC50 of 3.5 nM. CTAP TFA displays over 1200-fold selectivity over δ opioid (IC50=4500 nM) and somatostatin receptors. CTAP TFA can be used for the study of L-DOPA-induced dyskinesia (LID) and opiate overdose or addiction .
Cyclo(glycyl-L-leucyl) (Cyclo(leu-gly)), a neuropeptide, down-regulates dopamine (DA) receptors and attenuates dopaminergic supersensitivity. Cyclo(glycyl-L-leucyl) inhibits the development of Morphine induced pain relief as well as dopamine receptor supersensitivity in rats. Cyclo(glycyl-L-leucyl) has the potential for the prevention of tardive and/or L-DOPA (HY-N0304)-induced dyskinesias .
Mulberrofuran H is a 2-arylbenzofuran derivative from the cultivated mulberry tree (Morus lhou (ser.) Koidz.). Mulberrofuran H demonstrates potent inhibition against substrates L-tyrosine (IC50=4.45 µM) and L-DOPA (IC50=19.70 µM). Mulberrofuran H also shows potent anti-inflammatory and antioxidative activities .
SV 156 is a potent and selective D2 dopamine receptor antagonist, with a Ki of 2.5 nM for hD2. SV 156 has approximately 40-fold binding selectivity for D2 dopamine receptors compared to the D3 receptor subtype. SV 156 can be used for L-DOPA (HY-N0304)-associated abnormal involuntary movements (AIMs) research .
UWA-101 hydrochloride is a selective and non-cytotoxic DAT/SERT inhibitor, with EC50 values of 3.6 µM and 2.3 µM for inhibiting DAT and SERT, respectively. UWA-101 hydrochloride can alleviate the side effects of dopaminergic agents (such as L-DOPA), such as motor disorders, and lacks psychotropic activity. UWA-101 hydrochloride can be used for research on neurodegenerative diseases such as Parkinson's disease .
Mavoglurant (AFQ056) is a potent, selective, non-competitive and orally active mGluR5 antagonist, with an IC50 of 30 nM. Mavoglurant shows a >300 fold selectivity for the mGluR5 over all targets (238) tested. Mavoglurant can be used for the research of Fragile X syndrome (FXS), and L-dopa induced dyskinesias in Parkinson's disease . Mavoglurant is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
Kushenol A (Leachianone E) is isolated from the root of Sophora flavescent. Kushenol A is a non-competitive tyrosinase inhibitor to block the conversion of L-tyrosine to L-DOPA, shows IC50 and Kivalues of 1.1 μM and 0.4 μM, respectively . Kushenol A is a flavonoid antioxidant, has inhibitory effects on alpha-glucosidase (IC50: 45 μM; Ki: 6.8 μM) and β-amylase . Kushenol A is confirmed as potential inhibitors of enzymes targeted by cosmetics for skin whitening and aging .
CTAP TFA is a potent, highly selective, and BBB penetrant μ opioid receptor antagonist, with an IC50 of 3.5 nM. CTAP TFA displays over 1200-fold selectivity over δ opioid (IC50=4500 nM) and somatostatin receptors. CTAP TFA can be used for the study of L-DOPA-induced dyskinesia (LID) and opiate overdose or addiction .
CTAP is a potent, highly selective, and BBB penetrant μ opioid receptor antagonist, with an IC50 of 3.5 nM. CTAP displays over 1200-fold selectivity over δ opioid (IC50=4500 nM) and somatostatin receptors. CTAP can be used for the study of L-DOPA-induced dyskinesia (LID) and opiate overdose or addiction .
Cyclo(glycyl-L-leucyl) (Cyclo(leu-gly)), a neuropeptide, down-regulates dopamine (DA) receptors and attenuates dopaminergic supersensitivity. Cyclo(glycyl-L-leucyl) inhibits the development of Morphine induced pain relief as well as dopamine receptor supersensitivity in rats. Cyclo(glycyl-L-leucyl) has the potential for the prevention of tardive and/or L-DOPA (HY-N0304)-induced dyskinesias .
L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease .
3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine .
L-DOPA (Levodopa) sodium is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA sodium can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA sodium has anti-allodynic effects, and can be used for Parkinson's disease research .
L-DOPA (Standard) is the analytical standard of L-DOPA. This product is intended for research and analytical applications. L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease .
3-O-Methyl-DL-DOPA is an endogenous metabolite present in Cerebrospinal_Fluid that can be used for the research of Epilepsy, Purine Nucleoside Phosphorylase Deficiency and Aromatic L Amino Acid Decarboxylase Deficiency .
6-Hydroxykaempferol, a flavonoid, is a competitive tyrosinase inhibitor with an IC50 value of 124 μM. 6-Hydroxykaempferol has a Ki value of 148 μM relative to L-DOPA as a substrate and effectively inhibits the activity of the enzyme by binding to the active site of the enzyme .
Vanicoside E is an antioxidant and antitumor agent. Vanicoside E inhibits L-Tyrosine (HY-N0473) and L-DOPA (HY-N0304) with IC50s of 45.23 μM and 189.96 μM, respectively .
Mulberrofuran H is a 2-arylbenzofuran derivative from the cultivated mulberry tree (Morus lhou (ser.) Koidz.). Mulberrofuran H demonstrates potent inhibition against substrates L-tyrosine (IC50=4.45 µM) and L-DOPA (IC50=19.70 µM). Mulberrofuran H also shows potent anti-inflammatory and antioxidative activities .
Kushenol A (Leachianone E) is isolated from the root of Sophora flavescent. Kushenol A is a non-competitive tyrosinase inhibitor to block the conversion of L-tyrosine to L-DOPA, shows IC50 and Kivalues of 1.1 μM and 0.4 μM, respectively . Kushenol A is a flavonoid antioxidant, has inhibitory effects on alpha-glucosidase (IC50: 45 μM; Ki: 6.8 μM) and β-amylase . Kushenol A is confirmed as potential inhibitors of enzymes targeted by cosmetics for skin whitening and aging .
The DDC protein plays a key role in neurotransmitter synthesis as it catalyzes the decarboxylation of L-3,4-dihydroxyphenylalanine (DOPA) to produce dopamine and L-5-hydroxytryptophan to produce serotonin. These enzymatic reactions represent key steps in neurotransmitter biosynthesis and are essential for the normal functioning of the central nervous system. DDC Protein, Mouse (sf9, His) is the recombinant mouse-derived DDC protein, expressed by Sf9 insect cells , with C-His labeled tag. The total length of DDC Protein, Mouse (sf9, His) is 480 a.a., with molecular weight of ~55 kDa.
hDDC protein plays a central role in neurotransmitter synthesis by catalyzing the decarboxylation of L-3,4-dihydroxyphenylalanine (DOPA) to produce dopamine and L-5-hydroxytryptophan to produce serotonin. hDDC Protein, Human is the recombinant human-derived hDDC protein, expressed by E. coli , with tag free. The total length of hDDC Protein, Human is 480 a.a., .
hDDC protein plays a central role in neurotransmitter synthesis by catalyzing the decarboxylation of L-3,4-dihydroxyphenylalanine (DOPA) to produce dopamine and L-5-hydroxytryptophan to produce serotonin. hDDC Protein, Human (His, Strep) is the recombinant human-derived hDDC protein, expressed by E. coli , with N-Strep, N-6*His labeled tag. The total length of hDDC Protein, Human (His, Strep) is 480 a.a., .
L-DOPA- 13C is the 13C labeled L-DOPA[1]. L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease[2][3][4].
L-DOPA-2,5,6-d3 is the deuterium labeled L-DOPA. L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain[1][2][3].
L-DOPA-d6 is the deuterium labeled L-DOPA. L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease[1][2][3].
L-DOPA- 13C6 is the 13C-labled L-DOPA . L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease .
3-O-Methyldopa-d3 is deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].
3-O-Methyldopa-d3 (hydrate) is the deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].
(R)-3-O-Methyldopa-d3 is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].
(R)-3-O-Methyldopa-d3 (hydrochloride) is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].
![[18F]-Labeled L-<em>dopa</em> precursor](http://file.medchemexpress.com/product_pic/hy-141647.gif)
