1-Allyl-7-phenyl-2H-pyrimido[4,5-d][1,3]oxazine-2,4(1H)-dione CAS 76360-66-2

Description

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.

1-Allyl-7-phenyl-2H-pyrimido[4,5-d][1,3]oxazine-2,4(1H)-dione (CAS 76360-66-2), molecular formula C15H11N3O3 and molecular weight 281.27 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1-Allyl-7-phenyl-2H-pyrimido[4,5-d][1,3]oxazine-2,4(1H)-dione (C15H11N3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 281.27 g/mol, it falls into the medium-molecular-weight range. 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.

Physical & Chemical Properties

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