Metaraminol Impurity 37 CAS 55789-02-1

Description

Compared with other compounds in its class, the molecular weight of 152.19 g/mol gives Metaraminol Impurity 37 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Metaraminol Impurity 37 (CAS 55789-02-1) is a certified pharmaceutical impurity reference standard with the molecular formula C9H12O2 and a molecular weight of 152.19 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Metaraminol Impurity 37 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 152.19 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).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

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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