1,3-环己二酮产品含量和杂质分析数据

1,3-环己二酮作为重要的医药和农药中间体，是合成除草剂磺草酮、甲基磺草酮(硝黄草酮)的必备中间体，也是合成保护心血管的特效药卡维地洛和止吐药蒽丹西酮的重要中间体，还可用于合成异那朵林中间体4-苯并呋喃乙酸，用于合成镇痛药美他齐诺的中间体3-甲氧基-2-环己烯酮等。1,3-环己二酮同时还是抗血栓药物、抗肿瘤药物、镇痛药、杀病毒剂、5-HT拮抗剂等的重要原料，市场前景广阔。纯度和杂质是影响药品品质的重要因素，3-环己二酮含量、最大单一杂质含量和总杂含量检测是控制化合物质量的一项重要指标。通过对1,3-环己二酮产品含量和杂质分析，保障产品的品质，为下游产品的杂质分析和产品质量控制提供保障。采用液相色谱面积归一法，样品中的化合物在液相色谱柱上进行分离形成出峰，每个峰对应一个化合物，通过样品溶液主峰保留时间与标准品溶液主峰保留时间一致来鉴别主峰1,3-环己二酮的出峰时间，采用相对保留时间(RRT)=杂质出峰时间/主峰出峰时间来标注杂质化合物。1、样品配制：准确称取0.06g样品置于100mL容量瓶中，加入乙腈水溶液溶解定容作为供试品溶液。2、样品检测：打开色谱工作站，设置检测参数包括色谱柱、检测器、波长、进样量等，自动进样检测。3、数据采集：通过色谱工作站进行数据采集，形成色谱峰图。标注峰号、保留时间，自动采用微积分计算各个峰峰面积。4、数据处理：统计总出峰数，将所有出峰面积相加得出总峰面积，计算各出峰面积占总峰面积的百分率。根据面积归一法原理：各化合物含量与每个峰的面积成正比，因此1,3-环己二酮的含量1,3-环己二酮出峰面积/总峰面积×100%，各RRT杂质的含量=各杂质出峰面积/总峰面积×100%。5、数据评价：对比各杂质含量得出最大单一杂质含量，采用公式：总杂含量=100%-1,3-环己二酮的含量，计算总杂含量。

1,3-Cyclohexanedione is an important pharmaceutical and agrochemical intermediate. It is a necessary intermediate for the synthesis of herbicides sulcotrione and mesotrione, and also a key intermediate for the synthesis of carvedilol (a specific drug for cardiovascular protection) and ondansetron (an antiemetic). Additionally, it can be used to synthesize 4-benzofuranacetic acid as an intermediate for isonidoline and 3-methoxy-2-cyclohexen-1-one as an intermediate for the synthesis of analgesic metazocine. Furthermore, 1,3-cyclohexanedione is an important raw material for antithrombotic drugs, antitumor drugs, analgesics, virucides, 5-HT antagonists and other products, with broad market prospects.
Purity and impurities are critical factors affecting pharmaceutical quality. The detection of 1,3-cyclohexanedione content, maximum single impurity content and total impurity content is an important indicator for controlling the quality of this compound. Analyzing the content and impurities of 1,3-cyclohexanedione products helps ensure product quality, and provides support for impurity analysis and quality control of downstream products.
The liquid chromatography area normalization method is adopted here. Compounds in the sample are separated on a liquid chromatography column to form chromatographic peaks, where each peak corresponds to a single compound. The peak time of the main peak of 1,3-cyclohexanedione is identified by matching the retention time of the main peak in the sample solution with that of the standard solution. The relative retention time (RRT) is defined as RRT = impurity peak retention time / main peak retention time, which is used to label impurity compounds.
The specific experimental steps are as follows:
1. Sample preparation: Accurately weigh 0.06 g of the sample into a 100 mL volumetric flask, dissolve and dilute to the mark with acetonitrile aqueous solution to obtain the test solution.
2. Sample detection: Turn on the chromatography workstation, set the detection parameters including chromatographic column, detector, operating wavelength, injection volume and other relevant settings, and perform automatic injection detection.
3. Data collection: Collect data via the chromatography workstation to generate a chromatogram. Label the peak number and retention time, and automatically calculate the peak area of each peak using integral calculation.
4. Data processing: Count the total number of peaks, sum the areas of all peaks to obtain the total peak area, and calculate the percentage of each peak area relative to the total peak area. According to the principle of the area normalization method, the content of each compound is proportional to the area of its corresponding peak. Therefore, the content of 1,3-cyclohexanedione = (peak area of 1,3-cyclohexanedione / total peak area) × 100%, and the content of each impurity with a specific RRT = (impurity peak area / total peak area) × 100%.
5. Data evaluation: Compare the contents of each impurity to obtain the maximum single impurity content, and calculate the total impurity content using the formula: total impurity content = 100% - content of 1,3-cyclohexanedione.

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该数据集提供了1,3-环己二酮产品的详细含量和杂质分析数据，包括样品信息、色谱分析参数、峰面积和含量计算等，适用于医药和农药中间体的质量控制和杂质分析。