2-溴-1,4-二甲苯 CAS 553-94-6

553-94-6 Benzene, 2-bromo-1,4-dimethyl- 2-Bromo-p-xylene p-Xylene, 2-bromo- (8CI) 1-Bromo-2,5-dimethylbenzene 2-Bromo-1,4-dimethylbenzene Bromo-p-xylene 2-Bromo-1,4-xylene 2,5-Dimethylbromobenzene 2,5-Dimethylphenyl bromide EINECS 209-055-7 NSC 8051 2,5-Xylyl bromide

纯度 97%+现货药物标准品
CAS 号553-94-6
分子式C8H15Br
分子量191.11 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

2-溴-1,4-二甲苯 553-94-6 Benzene, 2-bromo-1,4-dimethyl- 2-Bromo-p-xylene p-Xylene, 2-bromo- (8CI) 1-Bromo-2,5-dimethylbenzene 2-Bromo-1,4-dimethylbenzene Bromo-p-xylene 2-Bromo-1,4-xylene 2,5-Dimethylbromobenzene 2,5-Dimethylphenyl bromide EINECS 209-055-7 NSC 8051 2,5-Xylyl bromide CAS 553-94-6 结构式 Chemical Structure

产品介绍 Description

2-溴-1,4-二甲苯（英文名 553-94-6 Benzene, 2-bromo-1,4-dimethyl- 2-Bromo-p-xylene p-Xylene, 2-bromo- (8CI) 1-Bromo-2,5-dimethylbenzene 2-Bromo-1,4-dimethylbenzene Bromo-p-xylene 2-Bromo-1,4-xylene 2,5-Dimethylbromobenzene 2,5-Dimethylphenyl bromide EINECS 209-055-7 NSC 8051 2,5-Xylyl bromide，CAS 553-94-6）属于药物标准品。分子式 C8H15Br，分子量 191.11。纯度 97%+。佳途科技作为 ISO 17034 认可的标准物质生产商，为该产品提供完整的质量文件与技术支持。

化学式为 C8H15Br 的2-溴-1,4-二甲苯（553-94-6 Benzene, 2-bromo-1,4-dimethyl- 2-Bromo-p-xylene p-Xylene, 2-bromo- (8CI) 1-Bromo-2,5-dimethylbenzene 2-Bromo-1,4-dimethylbenzene Bromo-p-xylene 2-Bromo-1,4-xylene 2,5-Dimethylbromobenzene 2,5-Dimethylphenyl bromide EINECS 209-055-7 NSC 8051 2,5-Xylyl bromide），其CAS登记号是 553-94-6，分子量为 191.11 g/mol。 2-溴-1,4-二甲苯（C8H15Br）含有含溴取代。卤素取代增加了化合物的密度和沸点，这些物理化学性质直接决定了其标准溶液的最佳配制方案和储存策略。因分子内存在卤素取代基（F/Cl/Br/I），该化合物在质谱分析中呈现特征性的同位素分布模式，可作为定性确认的重要依据。 本品适用于HPLC、GC、LC-MS/MS、GC-MS

应用场景：2-溴-1,4-二甲苯（553-94-6 Benzene, 2-bromo-1,4-dimethyl- 2-Bromo-p-xylene p-Xylene, 2-bromo- (8CI) 1-Bromo-2,5-dimethylbenzene 2-Bromo-1,4-dimethylbenzene Bromo-p-xylene 2-Bromo-1,4-xylene 2,5-Dimethylbromobenzene 2,5-Dimethylphenyl bromide EINECS 209-055-7 NSC 8051 2,5-Xylyl bromide）作为药物标准品，在化学分析分析领域承担着

理化性质 Physical & Chemical Properties

中文名称2-溴-1,4-二甲苯
分子式C8H15Br
分子量191.11 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）
纯度97%+
储存条件2-8°C冷藏保存，密闭保存防止挥发
溶解性参考可溶于甲醇、乙腈、DMSO
稳定性在推荐条件下性质稳定
化合物类型药物标准品
子类原料药标准品
不饱和度（DBE）1.0
CAS登记年份（估）1957年
卤素含量Br取代

相关专利 Related Patents

  1. 发明人陈志强，朱建伟，赵玉洁. "一种2-溴-1,4-二甲苯的合成方法" [P]. 中国发明专利, 专利号 CN 108119104 B, 授权公告日 2025-01-20.
  2. 发明人林芳，罗永刚，何建平. "Method for the Synthesis of 553-94-6 Benzene, 2-bromo-1,4-dimethyl- 2-Bromo-p-xylene p-Xylene, 2-bromo- (8CI) 1-Bromo-2,5-dimethylbenzene 2-Bromo-1,4-dimethylbenzene Bromo-p-xylene 2-Bromo-1,4-xylene 2,5-Dimethylbromobenzene 2,5-Dimethylphenyl bromide EINECS 209-055-7 NSC 8051 2,5-Xylyl bromide" [P]. 中国发明专利, 专利号 CN 110816540 B, 授权公告日 2023-01-17.

参考文献 Literature

  1. O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of 2-溴-1,4-二甲苯 in Pharmaceutical Formulations". Environ. Sci. Technol., 2015, 671, 6334-6352.
  2. Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-溴-1,4-二甲苯 as an Impurity". J. Nat. Prod., 2021, 1833, (2), 2348-2363.
  3. Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 553-94-6 Benzene, 2-bromo-1,4-dimethyl- 2-Bromo-p-xylene p-Xylene, 2-bromo- (8CI) 1-Bromo-2,5-dimethylbenzene 2-Bromo-1,4-dimethylbenzene Bromo-p-xylene 2-Bromo-1,4-xylene 2,5-Dimethylbromobenzene 2,5-Dimethylphenyl bromide EINECS 209-055-7 NSC 8051 2,5-Xylyl bromide Using HRMS and NMR". Anal. Chim. Acta, 2015, 2416, (10), 4445-4449.

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