(R)-1-(1-Methyl-4-nitro-1H-pyrazol-5-yl)pent-4-en-1-ol CAS 1956435-85-0

Description

The occurrence of (R)-1-(1-Methyl-4-nitro-1H-pyrazol-5-yl)pent-4-en-1-ol is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(R)-1-(1-Methyl-4-nitro-1H-pyrazol-5-yl)pent-4-en-1-ol (CAS 1956435-85-0), molecular formula C9H13N3O3 and molecular weight 211.22 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (R)-1-(1-Methyl-4-nitro-1H-pyrazol-5-yl)pent-4-en-1-ol (C9H13N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 211.22 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.

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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