L-甲基多巴水合物

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发布时间： 2024-07-15 12:35:12

CAS号：41372-08-1

常用名： 左旋甲基多巴

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纯度： 98.0%

备货期： 10天

库存： 现货

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用途： L-(-)-α-Methyldopa hydrate is an alpha-adrenergic agonist (selective for α2-adrenergic receptors) psychoactive drug used as a sympatholytic or antihypertensive.Target: alpha-adrenergic agonistMethyldopa is an alpha-adrenergic agonist (selective for α2-adrenergic receptors) psychoactive drug used as a sympatholytic or antihypertensive. Its use is now mostly deprecated following the introduction of alternative safer classes of agents. However, it continues to have a role in otherwise difficult to treat hypertension and gestational hypertension (also known as pregnancy-induced hypertension (PIH)).Methyldopa has a dual mechanism of action. It is a competitive inhibitor of the enzyme DOPA decarboxylase, also known as aromatic L-amino acid decarboxylase, which converts L-DOPA into dopamine. Dopamine is a precursor for norepinephrine (noradrenaline) and subsequently epinephrine (adrenaline). This inhibition results in reduced dopaminergic and adrenergic neurotransmission in the peripheral nervous system. This effect may lower blood pressure and cause central nervous system effects such as depression, anxiety, apathy, anhedonia, and parkinsonism. It is converted to α-methylnorepinephrine by dopamine beta-hydroxylase (DBH). α-methylnorepinephrine is an agonist of presynaptic central nervous system α2-adrenergic receptors. Activation of these receptors in the brainstem appears to inhibit sympathetic nervous system output and lower blood pressure. This is also the mechanism of action of clonidine. 物理化学性质： CAS号：41372-08-1 常用中文名：左旋甲基多巴常用英文名：Methyldopa Sesquihydrate 分子式：C10H13NO4.3/2H2O 分子量：238.24 密度：1.4±0.1 g/cm3 沸点：441.6±45.0 °C at 760 mmHg 熔点：>300 °C(lit.) 闪点：220.9±28.7 °C 储存条件：Refrigerator

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2022-02-19 价格：￥194.9 Methyldopa Sesquihydrate

2017-04-21 价格：￥300.0 L-甲基多巴

2018-11-09 价格：￥需询单左旋甲基多巴

2022-07-18 价格：￥需询单 (-)-3-(3,4-二羟基苯基)-2-甲基-L-丙氨酸倍

2023-02-20 价格：￥159.0 (-)-3-(3,4-二羟基苯基)-2-甲基-L-丙氨酸倍半水合物, 99%

2024-01-09 价格：$需询单 Better of alpha-Methyldopa sesquihydrate

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左旋甲基多巴价格

L-甲基多巴水合物

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