3-[4-(2-hydroxyethyl)-3-(methoxycarbonyl)-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]benzoic acid CAS 1221723-94-9
| CAS No. | 1221723-94-9 |
| Molecular Formula | C14H14N2O6 |
| Molecular Weight | 306.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-[4-(2-hydroxyethyl)-3-(methoxycarbonyl)-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]benzoic acid (CAS 1221723-94-9) is a high-purity analytical reference standard with the molecular formula C14H14N2O6 and a molecular weight of 306.27 g/mol.
3-[4-(2-hydroxyethyl)-3-(methoxycarbonyl)-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]benzoic acid (C14H14N2O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C14H14N2O6 |
| Molecular Weight | 306.27 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related hydroxyethyl Standards
- 4-[4-(2-hydroxyethyl)-3-(methoxycarbonyl)-5-oxo-2,5-dihydro-1h-pyrazol-1-yl]benzoic acid (CAS 1221725-91-2)
- Benzyl (2-((2-hydroxyethyl)amino)cyclohexyl)(methyl)carbamate (CAS 1353943-75-5)
- Benzyl 3-(((2-hydroxyethyl)(methyl)amino)methyl)piperidine-1-carboxylate (CAS 1353953-07-7)
- Benzyl 2-(((2-hydroxyethyl)(methyl)amino)methyl)piperidine-1-carboxylate (CAS 1353960-76-5)
- Benzyl (2-((2-hydroxyethyl)(methyl)amino)cyclohexyl)carbamate (CAS 1353960-81-2)
- Benzyl ((1-(2-hydroxyethyl)piperidin-3-yl)methyl)(methyl)carbamate (CAS 1353961-33-7)
- Benzyl 4-(((2-hydroxyethyl)(methyl)amino)methyl)piperidine-1-carboxylate (CAS 1353962-33-0)
- Benzyl ((1-(2-hydroxyethyl)piperidin-4-yl)methyl)(methyl)carbamate (CAS 1353964-67-6)
Recommended Standards
- 2-(1H-indol-5-yl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 1219553-80-6)
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- 3-[2-(Methoxycarbonyl)-4-nitrophenyl]-3-azabicyclo[3.1.0]hexane-2-carboxylic acid (CAS 1236260-10-8)
- (2S)-2-(2-(2-Oxoindolin-3-yl)acetamido)succinic acid (CAS 119975-53-0)
- 3-Bromo-2-methoxy-6-methylbenzoic acid (CAS 681467-88-9)
- 3-(4-Bromo-5-methyl-1H-pyrazol-1-yl)propanoic acid (CAS 956396-56-8)
- 5-Bromo-4-fluoro-2-hydroxybenzaldehyde (CAS 399-00-8)
- Hydroxy-PEG4-methylamine (CAS 90430-59-4)
- 3-(Boc-amino)-3-(3-piperidyl)propionic Acid (CAS 372144-09-7)
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- Midodrine impurity 1 (CAS CATO-C4X-30721)
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