L-硒代蛋氨酸 (CAS No.3211-76-5)
- 物化性质
- 白色结晶性粉末，溶于水，微溶于乙醇，不溶于乙醚。熔点约265°C（分解），比旋光度+17.5°（c=1, 1mol/L HCl），密度约1.44 g/cm³。在空气中稳定，但需避光密封保存。
- 技术参数
- 含量不低于98.0%（HPLC法） 水分含量不超过0.5% 比旋光度[α]D20为+17.0°~+18.5°（c=1, 1mol/L HCl） 干燥失重不超过0.5% 重金属含量不超过10ppm
English description（英文原文，共 1149 字符）
Product Name:L-Selenomethionine
English Name:L-Selenomethionine
CAS No.:3211-76-5
Aliases:Selenomethionine, L-Seleno-methionine, L-(+)-Selenomethionine, Selenium methionine
Molecular Formula:C5H11NO2Se
Physical Properties:White crystalline powder, soluble in water, slightly soluble in ethanol, insoluble in ether. Melting point approximately 265°C (decomposition), specific optical rotation +17.5° (c=1, 1mol/L HCl), density approximately 1.44 g/cm³. Stable in air but should be stored away from light in a sealed container.
Uses:L-Selenomethionine is a selenium-containing amino acid nutritional fortifier, widely used as an organic selenium source in pharmaceutical, food, and feed additive applications. In biochemical research, it serves as a selenium derivative for protein crystal structure determination. It is also an intermediate for the synthesis of various bioactive selenium compounds.
Technical Specifications:
Assay no less than 98.0% (HPLC method)
Water content no more than 0.5%
Specific optical rotation [α]D20 between +17.0° and +18.5° (c=1, 1mol/L HCl)
Loss on drying no more than 0.5%
Heavy metals no more than 10ppm
English Name:L-Selenomethionine
CAS No.:3211-76-5
Aliases:Selenomethionine, L-Seleno-methionine, L-(+)-Selenomethionine, Selenium methionine
Molecular Formula:C5H11NO2Se
Physical Properties:White crystalline powder, soluble in water, slightly soluble in ethanol, insoluble in ether. Melting point approximately 265°C (decomposition), specific optical rotation +17.5° (c=1, 1mol/L HCl), density approximately 1.44 g/cm³. Stable in air but should be stored away from light in a sealed container.
Uses:L-Selenomethionine is a selenium-containing amino acid nutritional fortifier, widely used as an organic selenium source in pharmaceutical, food, and feed additive applications. In biochemical research, it serves as a selenium derivative for protein crystal structure determination. It is also an intermediate for the synthesis of various bioactive selenium compounds.
Technical Specifications:
Assay no less than 98.0% (HPLC method)
Water content no more than 0.5%
Specific optical rotation [α]D20 between +17.0° and +18.5° (c=1, 1mol/L HCl)
Loss on drying no more than 0.5%
Heavy metals no more than 10ppm
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常见问题
- L-硒代蛋氨酸的 CAS 号是多少？
- L-硒代蛋氨酸的 CAS 号是 3211-76-5。
- L-硒代蛋氨酸的分子式和分子量是什么？
- L-硒代蛋氨酸的分子式为 C5H11NO2Se。
- L-硒代蛋氨酸的英文名称是什么？
- L-硒代蛋氨酸的英文名称为 L-Selenomethionine。
- L-硒代蛋氨酸还有哪些别名？
- L-硒代蛋氨酸又称 L-硒蛋氨酸、硒代蛋氨酸、硒蛋氨酸、L-(+)-硒代蛋氨酸。
- L-硒代蛋氨酸有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条L-硒代蛋氨酸供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
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- L-硒代蛋氨酸的供应商主要分布在 上海市（1 条） 等地。
- L-硒代蛋氨酸有哪些级别可选？
- 平台上L-硒代蛋氨酸的供应级别包括 工业级。
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- L-硒代蛋氨酸的报价单位主要有 千克。
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- 掌上化工L-硒代蛋氨酸产品页汇总了各供应商的最新报价与规格，地址：/chemicals/3211-76-5/。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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