α-Methylbenzyl isobutyrate CAS 7775-39-5
K9REG8PIWP 7775-39-5 alpha-Methylbenzyl isobutyrate 1-Phenylethyl isobutyrate Propanoic acid, 2-methyl-, 1-phenylethyl ester EINECS 231-894-2 FEMA No. 2687 Isobutyric acid, alpha-methylbenzyl ester alpha-Methylbenzyl 2-methylpropanoate Methylphenylcarbinyl isobutyrate 1-Phenyl-1-ethyl isobutyrate 1-Phenyl-1-ethyl 2-methylpropanoate Styralyl isobutyrate UNII-K9REG8PIWP
| CAS 号 | 7775-39-5 |
| 分子式 | C12H16O2 |
| 分子量 | 192.25 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
产品介绍 Description
α-Methylbenzyl isobutyrate（K9REG8PIWP 7775-39-5 alpha-Methylbenzyl isobutyrate 1-Phenylethyl isobutyrate Propanoic acid, 2-methyl-, 1-phenylethyl ester EINECS 231-894-2 FEMA No. 2687 Isobutyric acid, alpha-methylbenzyl ester alpha-Methylbenzyl 2-methylpropanoate Methylphenylcarbinyl isobutyrate 1-Phenyl-1-ethyl isobutyrate 1-Phenyl-1-ethyl 2-methylpropanoate Styralyl isobutyrate UNII-K9REG8PIWP）是药物分析与质量控制领域常用的药物标准品，CAS 号 7775-39-5。分子式 C12H16O2，分子量 192.25。纯度 97%+。CATO 佳途拥有 130,000+ 标准品现货目录，可一站式满足配套采购需求。
在现行药典和法规框架下，药物标准品的合规要求中明确涉及对包括α-Methylbenzyl isobutyrate在内的目标物的控制。 化学式为 C12H16O2 的α-Methylbenzyl isobutyrate（K9REG8PIWP 7775-39-5 alpha-Methylbenzyl isobutyrate 1-Phenylethyl isobutyrate Propanoic acid, 2-methyl-, 1-phenylethyl ester EINECS 231-894-2 FEMA No. 2687 Isobutyric acid, alpha-methylbenzyl ester alpha-Methylbenzyl 2-methylpropanoate Methylphenylcarbinyl isobutyrate 1-Phenyl-1-ethyl isobutyrate 1-Phenyl-1-ethyl 2-methylpropanoate Styralyl isobutyrate UNII-K9REG8PIWP），其CAS登记号是 7775-39-5
应用场景：在化学分析实验室中，α-Methylbenzyl isobutyrate（CAS 7775-39-5）凭借其97%+的纯度做为基础物质，为定量分析提供基准参照。 推荐以α-Methylbenzyl isobutyrate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。 建议使用乙腈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）； - 储备溶液建议用乙腈配制，于2-8°C冷藏保存条件下储存； - 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使用，防
理化性质 Physical & Chemical Properties
| 中文名称 | α-Methylbenzyl isobutyrate |
| 分子式 | C12H16O2 |
| 分子量 | 192.25 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 |
| 溶解性参考 | 可溶于氯仿、二氯甲烷、乙酸乙酯、DMSO |
| 稳定性 | 空气中长期暴露可能发生缓慢氧化 |
| 化合物类型 | 药物标准品 |
| 子类 | 原料药标准品 |
| 不饱和度（DBE） | 5.0 |
| UV特征 | 有紫外吸收 |
| 结构特征 | 含芳环 |
| CAS登记年份（估） | 1959年 |
相关专利 Related Patents
- 发明人陈志强，唐晓军，钱学锋. "一种α-Methylbenzyl isobutyrate的合成方法" [P]. 中国发明专利, 专利号 CN 114151221 A, 授权公告日 2022-03-17.
- 发明人罗永刚，周伟，陈志强. "Method for the Synthesis of K9REG8PIWP 7775-39-5 alpha-Methylbenzyl isobutyrate 1-Phenylethyl isobutyrate Propanoic acid, 2-methyl-, 1-phenylethyl ester EINECS 231-894-2 FEMA No. 2687 Isobutyric acid, alpha-methylbenzyl ester alpha-Methylbenzyl 2-methylpropanoate Methylphenylcarbinyl isobutyrate 1-Phenyl-1-ethyl isobutyrate 1-Phenyl-1-ethyl 2-methylpropanoate Styralyl isobutyrate UNII-K9REG8PIWP" [P]. 中国发明专利, 专利号 CN 113721113 A, 授权公告日 2023-04-01.
参考文献 Literature
- Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of α-Methylbenzyl isobutyrate in Pharmaceutical Formulations". Phytochemistry, 2014, 663, (9), 6438-6448.
- Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of α-Methylbenzyl isobutyrate as an Impurity". Food Chem., 2025, 1755, (1), 2763-2770.
- Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of K9REG8PIWP 7775-39-5 alpha-Methylbenzyl isobutyrate 1-Phenylethyl isobutyrate Propanoic acid, 2-methyl-, 1-phenylethyl ester EINECS 231-894-2 FEMA No. 2687 Isobutyric acid, alpha-methylbenzyl ester alpha-Methylbenzyl 2-methylpropanoate Methylphenylcarbinyl isobutyrate 1-Phenyl-1-ethyl isobutyrate 1-Phenyl-1-ethyl 2-methylpropanoate Styralyl isobutyrate UNII-K9REG8PIWP Using HRMS and NMR". Chemosphere, 2013, 1664, 7364-7389.
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