(D-Arg1,D-Trp7·9,Leu11)-Substance P CAS 91224-37-2

Description

Compared with other compounds in its class, the molecular weight of 1497.81 g/mol gives (D-Arg1,D-Trp7·9,Leu11)-Substance P distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(D-Arg1,D-Trp7·9,Leu11)-Substance P (CAS 91224-37-2), molecular formula C75H108N20O13 and molecular weight 1497.81 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, (D-Arg1,D-Trp7·9,Leu11)-Substance P is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 1497.81 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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