<SC>L</SC>-半胱氨酸乙酯 盐酸盐 CAS 868-59-7

868-59-7 AM467TB2I1 Ethyl cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride Ethyl L-cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride (1:1) Cysteine ethyl ester hydrochloride Cysteine ethyl ester hydrochloride (VAN) EINECS 212-779-6 Ethitanin Ethyl cysteine hydrochloride Mucastine NSC 117387 NSC 519837 Taiciscon Teincy UNII-AM467TB2I1

纯度 97%+现货药物标准品
CAS 号868-59-7
分子式C5H11NO2S HCl
分子量N/A g/mol
分类药物标准品 / 原料药标准品
库存状态现货

化学结构式 Structure

<SC>L</SC>-半胱氨酸乙酯 盐酸盐 868-59-7 AM467TB2I1 Ethyl cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride Ethyl L-cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride (1:1) Cysteine ethyl ester hydrochloride Cysteine ethyl ester hydrochloride (VAN) EINECS 212-779-6 Ethitanin Ethyl cysteine hydrochloride Mucastine NSC 117387 NSC 519837 Taiciscon Teincy UNII-AM467TB2I1 CAS 868-59-7 结构式 Chemical Structure

产品介绍 Description

CATO 佳途供应的<SC>L</SC>-半胱氨酸乙酯 盐酸盐（868-59-7 AM467TB2I1 Ethyl cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride Ethyl L-cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride (1:1) Cysteine ethyl ester hydrochloride Cysteine ethyl ester hydrochloride (VAN) EINECS 212-779-6 Ethitanin Ethyl cysteine hydrochloride Mucastine NSC 117387 NSC 519837 Taiciscon Teincy UNII-AM467TB2I1）为药物标准品，CAS 登记号 868-59-7，分子式 C5H11NO2S HCl。纯度 97%+。产品现货库存充足，可提供定制化规格与批次追踪服务。

与同类药物标准品相比，<SC>L</SC>-半胱氨酸乙酯 盐酸盐的分子量为185.67 g/mol这一特征使其在色谱分离条件和质谱检测参数设置上具有独特性。 CAS编号 868-59-7 对应的化合物<SC>L</SC>-半胱氨酸乙酯 盐酸盐（英文标识 868-59-7 AM467TB2I1 Ethyl cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride Ethyl L-cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride (1:1) Cysteine ethyl ester hydrochloride Cysteine ethyl ester hydrochloride (VAN) EINECS 212-779-6 Ethitanin Ethyl cysteine hydrochloride Mucastine NSC 117387 NSC 519837 Taiciscon Teincy UNII-AM467TB2I1），化学式 C5

应用场景：从实际应用出发，<SC>L</SC>-半胱氨酸乙酯 盐酸盐（CAS 868-59-7）在化学分析中作为关键的基准对照物质。 推荐以<SC>L</SC>-半胱氨酸乙酯 盐酸盐配制标准系列工作溶液，用于建立标准曲线实现外标法定量。 建议使用甲醇/乙腈（1:1）为溶剂配制储备溶液，根据检测灵敏度需求逐级稀释。 使用建议： - 称量前将样品在干燥器内平衡至室温（约30分钟）； - 储备溶液建议用甲醇/乙腈（1:1）配制，于2-8°C冷藏保存，避光，密闭保存防止挥发条件下储存； - 低浓度工作液（<10 μg/mL）建议当天配制使用，不宜长期存放； - 开启安瓿瓶/西林瓶后应在干燥环境下尽快

理化性质 Physical & Chemical Properties

中文名称<SC>L</SC>-半胱氨酸乙酯 盐酸盐
分子式C5H11NO2S HCl
分子量185.67 g/mol
外观形态白色至类白色结晶性粉末。（具有轻微卤代物特征气味，具有氨/胺类微弱气味，含硫化合物特征性气味）
纯度97%+
储存条件2-8°C冷藏保存，避光，密闭保存防止挥发
溶解性参考可溶于甲醇、乙腈、DMSO、水（微溶）
稳定性对光敏感，应避免强光直射；含酯键，遇强碱易水解
化合物类型药物标准品
子类原料药标准品
不饱和度（DBE）0.0
CAS登记年份（估）1957年
卤素含量Cl取代
含氮原子数1
含硫原子数1

相关专利 Related Patents

  1. Anderson J P, O'Brien P Q, Mueller T. "一种<SC>L</SC>-半胱氨酸乙酯 盐酸盐的合成方法" [P]. US Patent, US 9733254 B2, 2024-05-19.
  2. Hughes D C, Anderson J P, Brown S R. "Method for the Synthesis of 868-59-7 AM467TB2I1 Ethyl cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride Ethyl L-cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride (1:1) Cysteine ethyl ester hydrochloride Cysteine ethyl ester hydrochloride (VAN) EINECS 212-779-6 Ethitanin Ethyl cysteine hydrochloride Mucastine NSC 117387 NSC 519837 Taiciscon Teincy UNII-AM467TB2I1" [P]. US Patent, US 11601529 B2, 2017-09-26.

参考文献 Literature

  1. Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of <SC>L</SC>-半胱氨酸乙酯 盐酸盐 in Pharmaceutical Formulations". Talanta, 2010, 1749, (8), 7978-7985.
  2. Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of <SC>L</SC>-半胱氨酸乙酯 盐酸盐 as an Impurity". Phytochemistry, 2021, 985, (9), 662-678.
  3. Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 868-59-7 AM467TB2I1 Ethyl cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride Ethyl L-cysteinate hydrochloride L-Cysteine, ethyl ester, hydrochloride (1:1) Cysteine ethyl ester hydrochloride Cysteine ethyl ester hydrochloride (VAN) EINECS 212-779-6 Ethitanin Ethyl cysteine hydrochloride Mucastine NSC 117387 NSC 519837 Taiciscon Teincy UNII-AM467TB2I1 Using HRMS and NMR". J. Pharm. Biomed. Anal., 2010, 1789, 567-586.
  4. Brown R C, Davis S M. "Forced Degradation Studies to Evaluate <SC>L</SC>-半胱氨酸乙酯 盐酸盐 Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2023, 1914, 7353-7371.

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