应用场景:(4,5,6,7-Tetrahydro-1H-benzo d imidazole-6-carboxylic acidcompound with sulfuric acid (1:1))作为药物标准品,在化学分析分析领域承担着重要的角色。 推荐以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配制,于2-8°C冷藏保存,避光,密封防潮条件下储存; - 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
理化性质 Physical & Chemical Properties
中文名称
分子式
C8H10N2O2 H2O4S
分子量
264.25 g/mol
外观形态
类白色至淡黄色结晶性粉末。(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)
4.0
UV特征
有紫外吸收
结构特征
含芳环
CAS登记年份(估)
1994年
含氮原子数
2
含硫原子数
1
相关专利 Related Patents
Schröder R, Martínez F, Kowalski A. "一种的合成方法" [P]. European Patent, EP 3596877 A1, 2022-05-06.
Brown S R, Williams B T, Klinger H. "Method for the Synthesis of 4,5,6,7-Tetrahydro-1H-benzo[d]imidazole-6-carboxylic acidcompound with sulfuric acid (1:1)" [P]. US Patent, US 10970858 B2, 2017-08-01.
Roberts E F, Fischer A B, Hughes D C. "A Process for Preparing High-Purity 4,5,6,7-Tetrahydro-1H-benzo[d]imidazole-6-carboxylic acidcompound with sulfuric acid (1:1)" [P]. US Patent, US 10342796 B2, 2020-07-16.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2022, 1903, (1), 159-174.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2015, 2208, (1), 1408-1421.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4,5,6,7-Tetrahydro-1H-benzo[d]imidazole-6-carboxylic acidcompound with sulfuric acid (1:1) Using HRMS and NMR". Molecules, 2016, 954, 1692-1704.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2025, 2434, (12), 4723-4736.