3-Amino-1-(naphthalen-1-ylmethyl)-1H-pyrazol-5(4H)-one CAS 51421-11-5
| CAS No. | 51421-11-5 |
| Molecular Formula | C14H13N3O |
| Molecular Weight | 239.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
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.
CATO supplies 3-Amino-1-(naphthalen-1-ylmethyl)-1H-pyrazol-5(4H)-one (CAS 51421-11-5), a certified reference material (molecular formula C14H13N3O, MW 239.27 g/mol) for analytical method development and quality control.
The molecular framework of 3-Amino-1-(naphthalen-1-ylmethyl)-1H-pyrazol-5(4H)-one (C14H13N3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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
| Molecular Formula | C14H13N3O |
| Molecular Weight | 239.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- 4-Bromo-2-chloro-3-fluoroaniline (CAS 1349719-24-9)
- 1-(But-3-yn-2-yl)piperidine (CAS 54795-31-2)
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- 6-(3-Isopropyl-1,2,4-oxadiazol-5(2h)-ylidene)-2-methylcyclohexa-2,4-dien-1-imine (CAS 1355938-71-4)
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