7-Iodo-5-(4-methylbenzenesulfonyl)-5H-pyrrolo[2,3-b]pyrazine CAS 889451-27-8

Description

The occurrence of 7-Iodo-5-(4-methylbenzenesulfonyl)-5H-pyrrolo[2,3-b]pyrazine is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

7-Iodo-5-(4-methylbenzenesulfonyl)-5H-pyrrolo[2,3-b]pyrazine (CAS 889451-27-8), molecular formula C13H10IN3O2S and molecular weight 399.21 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, iodine substitution, 7-Iodo-5-(4-methylbenzenesulfonyl)-5H-pyrrolo[2,3-b]pyrazine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 399.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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