L-甲基多巴 (CAS No.41372-08-1)
- 物化性质
- 白色至类白色结晶性粉末;溶于水,微溶于乙醇,几乎不溶于乙醚;熔点约300℃(分解);比旋光度[α]D20为-23°至-28°(c=1,1 mol/L HCl中);本品为L-甲基多巴倍半水合物。
- 技术参数
- 含量(HPLC)≥99.0%,级别为生化试剂级(BR) 外观为白色至类白色结晶性粉末 比旋光度[α]D20为-23°至-28°(c=1,1 mol/L HCl中) 水分(Karl Fischer法)为9.0%~12.0% 炽灼残渣≤0.1%
English description(英文原文,共 1115 字符)
Product Name:L-Methyldopa Hydrate
English Name:L-Methyldopa Hydrate
CAS No.:41372-08-1
Aliases:3-Hydroxy-α-methyl-L-tyrosine hydrate, 2-Methyl-3-(3,4-dihydroxyphenyl)-L-alanine, 3-(3,4-Dihydroxyphenyl)-2-methyl-L-alanine, (-)-Methyldopa, α-Methyl-L-DOPA
Molecular Formula:C10H13NO4·1.5H2O
Physical Properties:White to off-white crystalline powder; soluble in water, slightly soluble in ethanol, practically insoluble in ether; melting point approximately 300°C (decomposition); specific rotation [α]D20 -23° to -28° (c=1, in 1 mol/L HCl); exists as the sesquihydrate form.
Uses:L-Methyldopa is a central alpha-2 adrenergic receptor agonist used clinically as an antihypertensive agent, alone or in combination with other antihypertensive drugs for the treatment of hypertension. It is also used as a pharmaceutical API and organic synthesis intermediate.
Technical Specifications:
Assay (HPLC) ≥99.0%, grade: biochemical reagent (BR)
Appearance: white to off-white crystalline powder
Specific rotation [α]D20: -23° to -28° (c=1, in 1 mol/L HCl)
Water (Karl Fischer): 9.0%–12.0%
Residue on ignition ≤0.1%
English Name:L-Methyldopa Hydrate
CAS No.:41372-08-1
Aliases:3-Hydroxy-α-methyl-L-tyrosine hydrate, 2-Methyl-3-(3,4-dihydroxyphenyl)-L-alanine, 3-(3,4-Dihydroxyphenyl)-2-methyl-L-alanine, (-)-Methyldopa, α-Methyl-L-DOPA
Molecular Formula:C10H13NO4·1.5H2O
Physical Properties:White to off-white crystalline powder; soluble in water, slightly soluble in ethanol, practically insoluble in ether; melting point approximately 300°C (decomposition); specific rotation [α]D20 -23° to -28° (c=1, in 1 mol/L HCl); exists as the sesquihydrate form.
Uses:L-Methyldopa is a central alpha-2 adrenergic receptor agonist used clinically as an antihypertensive agent, alone or in combination with other antihypertensive drugs for the treatment of hypertension. It is also used as a pharmaceutical API and organic synthesis intermediate.
Technical Specifications:
Assay (HPLC) ≥99.0%, grade: biochemical reagent (BR)
Appearance: white to off-white crystalline powder
Specific rotation [α]D20: -23° to -28° (c=1, in 1 mol/L HCl)
Water (Karl Fischer): 9.0%–12.0%
Residue on ignition ≤0.1%
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常见问题
- L-甲基多巴的 CAS 号是多少?
- L-甲基多巴的 CAS 号是 41372-08-1。
- L-甲基多巴的分子式和分子量是什么?
- L-甲基多巴的分子式为 C10H13NO4·1.5H2O。
- L-甲基多巴的英文名称是什么?
- L-甲基多巴的英文名称为 L-Methyldopa Hydrate。
- L-甲基多巴还有哪些别名?
- L-甲基多巴又称 3-羟基-α-甲基-L-酪氨酸水合物、2-甲基-3-(3,4-二羟基苯基)-L-丙氨酸、3-(3,4-二羟基苯基)-2-甲基-L-丙氨酸、(-)-甲基多巴、α-甲基-L-多巴。
- L-甲基多巴有哪些供应商和生产厂家?
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- 掌上化工L-甲基多巴产品页汇总了各供应商的最新报价与规格,地址:/chemicals/41372-08-1/。部分供应商价格为电议,可通过页面上的询价功能直接获取。
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