(5-hydroxy-1-phenyl-1H-pyrazol-3-yl)acetic acid CAS 52546-46-0
| CAS No. | 52546-46-0 |
| Molecular Formula | C11H10N2O3 |
| Molecular Weight | 218.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (5-hydroxy-1-phenyl-1H-pyrazol-3-yl)acetic acid (C11H10N2O3) contains an amino-acid-derived structure, 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 218.21 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies (5-hydroxy-1-phenyl-1H-pyrazol-3-yl)acetic acid (CAS 52546-46-0), a certified reference material (molecular formula C11H10N2O3, MW 218.21 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), (5-hydroxy-1-phenyl-1H-pyrazol-3-yl)acetic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H10N2O3 |
| Molecular Weight | 218.21 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 methanol, ethanol, DMSO |
| 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.) | 1972 |
| Nitrogen Atoms | 2 |
Related hydroxy Standards
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- 6-(4-Hydroxy-3-methoxyphenyl)pyridazin-3-ol (CAS 1105193-85-8)
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- 4-Hydroxy-1-(4-methylphenyl)-1h-pyrazole-3-carboxylic acid (CAS 1152604-35-7)
- Methyl 4-hydroxy-1-phenyl-1H-pyrazole-3-carboxylate (CAS 118995-01-0)
- 3-acetyl-4-hydroxy-5-methyl-2H-1-Benzopyran-2-one (CAS 121688-90-2)
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Recommended Standards
- (4Z)-4-[2-(3-Methoxyphenyl)hydrazin-1-ylidene]-4,5-dihydro-1H-pyrazol-5-one (CAS 338416-89-0)
- (5-Oxo-2,5-dihydrofuran-2-yl)methyl benzoate (CAS 85339-35-1)
- (3S,4S,5R,6R)-6-Acetamido-4,5-dihydroxypiperidine-3-carboxylic acid (CAS 54795-58-3)
- (E)-2-(3-Phenylallylidene)malonic acid (CAS 28028-86-6)
- N-(Pyridin-3-yl)-2-(pyridin-4-yl)quinoline-4-carboxamide (CAS 879920-45-3)
- methyl 1-methyl-3-oxo-cyclobutanecarboxylate (CAS 1408075-88-6)
- 3-Chloro-4-methylphenol (CAS 615-62-3)
- 5-Chloro-3-methylbenzene-1,2-diamine hydrochloride (CAS 1269383-47-2)
- 4,5,8-trimethylquinolin-2-ol (CAS 53761-43-6)
- 4-{[5-(ethoxycarbonyl)-4-phenyl-1,3-thiazol-2-yl]amino}butanoic acid (CAS 873208-56-1)
- Ethyl 1-(5-chloro-2-nitrophenyl)-4-piperidinecarboxylate (CAS 847408-05-3)
- (E)-4-(benzyloxy)benzaldehyde O-(4-fluorobenzoyl) oxime (CAS 478046-77-4)
- 2-(Aminomethyl)-5-(difluoromethyl)-3-iodo-6-(trifluoromethyl)pyridine (CAS 1804866-95-2)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
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