Methyl 5-(naphthalen-1-yl)-1h-pyrazole-3-carboxylate CAS 1159596-87-8
| CAS No. | 1159596-87-8 |
| Molecular Formula | C15H12N2O2 |
| Molecular Weight | 252.27 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.
Methyl 5-(naphthalen-1-yl)-1h-pyrazole-3-carboxylate (CAS 1159596-87-8) is a high-purity analytical reference standard with the molecular formula C15H12N2O2 and a molecular weight of 252.27 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Methyl 5-(naphthalen-1-yl)-1h-pyrazole-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 252.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C15H12N2O2 |
| Molecular Weight | 252.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 1-Methyl-3-(naphthalen-1-yl)-1H-pyrazole-5-carboxylic acid (CAS 1177347-48-6)
- 3-(Naphthalen-2-yl)-1H-pyrazole-5-carbohydrazide (CAS 307322-32-3)
- 2-(Naphthalen-2-yloxy)ethane-1-sulfonamide (CAS 1342264-72-5)
- 1-(Naphthalen-1-ylmethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1111881-86-7)
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- 5-Methyl-1-(naphthalen-1-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 70292-10-3)
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Recommended Standards
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- 3-Amino-4-cyclopropoxypicolinaldehyde (CAS 1243466-24-1)
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- 1-methyl-3-(piperazin-1-yl)-1,2-dihydropyrazin-2-one (CAS 1343640-83-4)
- 2-(4-Bromophenyl)-4,4,6-trimethyl-1,3,2-dioxaborinane (CAS 1092060-78-0)
- (R)-1-(2-chloropyridin-3-yl)-2,2,2-trifluoroethan-1-amine hydrochloride (CAS 2089671-15-6)
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