7-Bromo-D-tryptophan CAS 496929-99-8

Description

Compared with other compounds in its class, the molecular weight of 283.12 g/mol gives 7-Bromo-D-tryptophan distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

7-Bromo-D-tryptophan (CAS 496929-99-8) is a high-purity analytical reference standard with the molecular formula C11H11BrN2O2 and a molecular weight of 283.12 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 7-Bromo-D-tryptophan is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 283.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

As a certified reference material (CRM), 7-Bromo-D-tryptophan meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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