L-苏氨酸 (CAS No.72-19-5)
- 物化性质
- 白色结晶或结晶性粉末，无臭，味微甜。约256℃熔化并分解。高温下遇稀碱分解，遇酸缓慢分解。易溶于水（20g/100mL，25℃），不溶于乙醇、乙醚和氯仿。比旋光度[α]D20约-28.3°（c=6，H₂O）。
- 技术参数
- 含量（以干基计）≥98.5% 比旋光度[α]D20为-26.0°~-29.0°（c=6，H₂O） 干燥失重≤0.2% 灼烧残渣≤0.1% 重金属（以Pb计）≤10mg/kg
English description（英文原文，共 1185 字符）
Product Name:L-Threonine
English Name:L-Threonine
CAS No.:72-19-5
Aliases:L-2-Amino-3-hydroxybutyric acid, L-α-Amino-β-hydroxybutyric acid, Food grade L-Threonine
Molecular Formula:C₄H₉NO₃
Physical Properties:White crystalline powder or crystals, odorless with a slightly sweet taste. Melts and decomposes at approximately 256°C. Decomposes slowly in dilute alkali at high temperature and slowly in acids. Freely soluble in water (20 g/100 mL at 25°C); insoluble in ethanol, ether, and chloroform. Specific rotation [α]D20 approximately -28.3° (c = 6, H₂O).
Uses:L-Threonine is an essential amino acid primarily used as a nutritional supplement, widely applied in pharmaceuticals, chemical reagents, food fortifiers, and feed additives. In the feed industry, it is commonly added to piglet and poultry feed to balance amino acid profiles, promote growth, improve meat quality, and reduce feed costs. It is the second limiting amino acid in swine feed and the third in poultry feed.
Technical Specifications:
Assay (on dry basis) ≥ 98.5%
Specific rotation [α]D20: -26.0° to -29.0° (c = 6, H₂O)
Loss on drying ≤ 0.2%
Residue on ignition ≤ 0.1%
Heavy metals (as Pb) ≤ 10 mg/kg
English Name:L-Threonine
CAS No.:72-19-5
Aliases:L-2-Amino-3-hydroxybutyric acid, L-α-Amino-β-hydroxybutyric acid, Food grade L-Threonine
Molecular Formula:C₄H₉NO₃
Physical Properties:White crystalline powder or crystals, odorless with a slightly sweet taste. Melts and decomposes at approximately 256°C. Decomposes slowly in dilute alkali at high temperature and slowly in acids. Freely soluble in water (20 g/100 mL at 25°C); insoluble in ethanol, ether, and chloroform. Specific rotation [α]D20 approximately -28.3° (c = 6, H₂O).
Uses:L-Threonine is an essential amino acid primarily used as a nutritional supplement, widely applied in pharmaceuticals, chemical reagents, food fortifiers, and feed additives. In the feed industry, it is commonly added to piglet and poultry feed to balance amino acid profiles, promote growth, improve meat quality, and reduce feed costs. It is the second limiting amino acid in swine feed and the third in poultry feed.
Technical Specifications:
Assay (on dry basis) ≥ 98.5%
Specific rotation [α]D20: -26.0° to -29.0° (c = 6, H₂O)
Loss on drying ≤ 0.2%
Residue on ignition ≤ 0.1%
Heavy metals (as Pb) ≤ 10 mg/kg
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常见问题
- L-苏氨酸的 CAS 号是多少？
- L-苏氨酸的 CAS 号是 72-19-5。
- L-苏氨酸的分子式和分子量是什么？
- L-苏氨酸的分子式为 C₄H₉NO₃。
- L-苏氨酸的英文名称是什么？
- L-苏氨酸的英文名称为 L-Threonine。
- L-苏氨酸还有哪些别名？
- L-苏氨酸又称 L-2-氨基-3-羟基丁酸、L-α-氨基-β-羟基丁酸、食品级L-苏氨酸。
- L-苏氨酸有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条L-苏氨酸供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
- L-苏氨酸的供应商主要分布在哪些地区？
- L-苏氨酸的供应商主要分布在 上海市（1 条） 等地。
- L-苏氨酸有哪些级别可选？
- 平台上L-苏氨酸的供应级别包括 工业级。
- L-苏氨酸的报价单位是什么？
- L-苏氨酸的报价单位主要有 千克。
- 哪里可以查到L-苏氨酸的价格？
- 掌上化工L-苏氨酸产品页汇总了各供应商的最新报价与规格，地址：/chemicals/72-19-5/。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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