Ethyl 1-benzyl-5-hydroxy-1H-pyrazole-3-carboxylate CAS 70608-99-0
| CAS No. | 70608-99-0 |
| Molecular Formula | C13H14N2O3 |
| Molecular Weight | 246.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Ethyl 1-benzyl-5-hydroxy-1H-pyrazole-3-carboxylate (C13H14N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 246.26 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Ethyl 1-benzyl-5-hydroxy-1H-pyrazole-3-carboxylate (CAS 70608-99-0), a certified reference material (molecular formula C13H14N2O3, MW 246.26 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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
| Molecular Formula | C13H14N2O3 |
| Molecular Weight | 246.26 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Recommended Standards
- Ethyl (5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetate (CAS 29211-44-7)
- Ethyl 1-benzyl-5-hydroxy-1H-pyrazole-4-carboxylate (CAS 651755-15-6)
- Ethyl (2Z)-2-cyano-3-[(4-methoxyphenyl)amino]prop-2-enoate (CAS 58286-24-1)
- Ethyl 1-hydroxy-6-methoxy-2-naphthoate (CAS 690232-01-0)
- Ethyl 2-(3-methylpyridin-2-yl)acetate (CAS 5552-80-7)
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- Methyl (2Z)-2-(4-tert-butylbenzenesulfonyl)-3-[(4-methoxyphenyl)amino]prop-2-enoate (CAS 1327178-62-0)
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- Mitogenic Pentapeptide (CAS 87173-03-3)
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