CAS 838-57-3

838-57-3 Acetic acid, (p-nitrobenzoyl)-, ethyl ester Benzenepropanoic acid, 4-nitro-beta-oxo-, ethyl ester Ethyl 4-nitrobenzoylacetate 4-10-00-02759 (Beilstein Handbook Reference) BRN 1124763 EINECS 212-656-7 Ethyl (p-nitrobenzoyl)acetate Ethyl (4-nitrobenzoyl)acetate Ethyl 4-nitro-beta-oxobenzenepropanoate (p-Nitrobenzoyl)acetic acid ethyl ester (4-Nitrobenzoyl)acetic acid ethyl ester NSC 62134

纯度 97%+现货药物标准品
CAS 号838-57-3
分子式C11H11NO5
分子量237.21 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

838-57-3 Acetic acid, (p-nitrobenzoyl)-, ethyl ester Benzenepropanoic acid, 4-nitro-beta-oxo-, ethyl ester Ethyl 4-nitrobenzoylacetate 4-10-00-02759 (Beilstein Handbook Reference) BRN 1124763 EINECS 212-656-7 Ethyl (p-nitrobenzoyl)acetate Ethyl (4-nitrobenzoyl)acetate Ethyl 4-nitro-beta-oxobenzenepropanoate (p-Nitrobenzoyl)acetic acid ethyl ester (4-Nitrobenzoyl)acetic acid ethyl ester NSC 62134 CAS 838-57-3 结构式 Chemical Structure

产品介绍 Description

CATO 佳途供应的（838-57-3 Acetic acid, (p-nitrobenzoyl)-, ethyl ester Benzenepropanoic acid, 4-nitro-beta-oxo-, ethyl ester Ethyl 4-nitrobenzoylacetate 4-10-00-02759 (Beilstein Handbook Reference) BRN 1124763 EINECS 212-656-7 Ethyl (p-nitrobenzoyl)acetate Ethyl (4-nitrobenzoyl)acetate Ethyl 4-nitro-beta-oxobenzenepropanoate (p-Nitrobenzoyl)acetic acid ethyl ester (4-Nitrobenzoyl)acetic acid ethyl ester NSC 62134）为药物标准品，CAS 登记号 838-57-3，分子式 C11H11NO5，分子量 237.21。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。

化学式为 C11H11NO5 的（838-57-3 Acetic acid, (p-nitrobenzoyl)-, ethyl ester Benzenepropanoic acid, 4-nitro-beta-oxo-, ethyl ester Ethyl 4-nitrobenzoylacetate 4-10-00-02759 (Beilstein Handbook Reference) BRN 1124763 EINECS 212-656-7 Ethyl (p-nitrobenzoyl)acetate Ethyl (4-nitrobenzoyl)acetate Ethyl 4-nitro-beta-oxobenzenepropanoate (p-Nitrobenzoyl)acetic acid ethyl ester (4-Nitrobenzoyl)acetic acid ethyl ester NSC 62134），其CAS登记号是 838-57-3，分子量为 237.21 g/mol。 （C11H11NO5）含有氨基酸衍生物，酰胺类，含羟基，含醚键。具有较强的吸湿性，羧基赋予

应用场景：（838-57-3 Acetic acid, (p-nitrobenzoyl)-, ethyl ester Benzenepropanoic acid, 4-nitro-beta-oxo-, ethyl ester Ethyl 4-nitrobenzoylacetate 4-10-00-02759 (Beilstein Handbook Reference) BRN 1124763 EINECS 212-656-7 Ethyl (p-nitrobenzoyl)acetate Ethyl (4-nitrobenzoyl)acetate Ethyl 4-nitro-beta-oxobenzenep

理化性质 Physical & Chemical Properties

中文名称
分子式C11H11NO5
分子量237.21 g/mol
外观形态类白色至淡黄色结晶性粉末
纯度97%+
储存条件2-8°C冷藏保存，避光，密封防潮
溶解性参考可溶于甲醇、乙醇、DMSO
稳定性空气中长期暴露可能发生缓慢氧化；对光敏感，应避免强光直射；具有吸湿性，开封后应立即密封
化合物类型药物标准品
子类原料药标准品
不饱和度（DBE）7.0
UV特征有紫外吸收
结构特征含芳环
CAS登记年份（估）1957年
含氮原子数1

相关专利 Related Patents

  1. 发明人冯建国，高志强，罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115477142 B, 授权公告日 2024-05-24.
  2. Mueller T C, Kowalski A, Jørgensen K. "Method for the Synthesis of 838-57-3 Acetic acid, (p-nitrobenzoyl)-, ethyl ester Benzenepropanoic acid, 4-nitro-beta-oxo-, ethyl ester Ethyl 4-nitrobenzoylacetate 4-10-00-02759 (Beilstein Handbook Reference) BRN 1124763 EINECS 212-656-7 Ethyl (p-nitrobenzoyl)acetate Ethyl (4-nitrobenzoyl)acetate Ethyl 4-nitro-beta-oxobenzenepropanoate (p-Nitrobenzoyl)acetic acid ethyl ester (4-Nitrobenzoyl)acetic acid ethyl ester NSC 62134" [P]. European Patent, EP 3529604 A1, 2018-04-17.
  3. 发明人陈志强，马晓峰，胡光. "A Process for Preparing High-Purity 838-57-3 Acetic acid, (p-nitrobenzoyl)-, ethyl ester Benzenepropanoic acid, 4-nitro-beta-oxo-, ethyl ester Ethyl 4-nitrobenzoylacetate 4-10-00-02759 (Beilstein Handbook Reference) BRN 1124763 EINECS 212-656-7 Ethyl (p-nitrobenzoyl)acetate Ethyl (4-nitrobenzoyl)acetate Ethyl 4-nitro-beta-oxobenzenepropanoate (p-Nitrobenzoyl)acetic acid ethyl ester (4-Nitrobenzoyl)acetic acid ethyl ester NSC 62134" [P]. 中国发明专利, 专利号 CN 114953392 A, 授权公告日 2023-05-16.

参考文献 Literature

  1. Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2024, 285, 710-738.
  2. Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2016, 1525, (1), 9523-9547.

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