7-bromo-2-methoxythieno[3,2-d]pyrimidine CAS 1259978-35-2

Description

Compared with other compounds in its class, the molecular weight of 253.16 g/mol gives 7-bromo-2-methoxythieno[3,2-d]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

7-bromo-2-methoxythieno[3,2-d]pyrimidine (CAS 1259978-35-2) is a high-purity analytical reference standard with the molecular formula C7H13BrN2OS and a molecular weight of 253.16 g/mol.

The molecular framework of 7-bromo-2-methoxythieno[3,2-d]pyrimidine (C7H13BrN2OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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