3-Oxo-1-phenylcyclobutane-1-carboxylic acid CAS 766513-36-4
| CAS No. | 766513-36-4 |
| Molecular Formula | C11H10O3 |
| Molecular Weight | 190.20 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.
3-Oxo-1-phenylcyclobutane-1-carboxylic acid (CAS 766513-36-4), molecular formula C11H10O3 and molecular weight 190.20 g/mol, is a CATO reference standard with documented purity and traceability.
3-Oxo-1-phenylcyclobutane-1-carboxylic acid (C11H10O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
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 | C11H10O3 |
| Molecular Weight | 190.20 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
Related Oxo Standards
- Methyl 2-phenylcyclobutane-1-carboxylate (CAS 1823589-87-2)
- 2-Methyl-1-phenylcyclobutane-1-carboxylic acid (CAS 633317-67-6)
- Methyl 1-phenylcyclobutane-1-carboxylate (CAS 58469-03-7)
- 2-Phenylcyclobutane-1-carboxylic acid (CAS 91142-54-0)
- 3-Oxo-1-phenylcyclobutane-1-carbonitrile (CAS 202737-51-7)
- 1-Phenylcyclobutane-1-carbaldehyde (CAS 1469-83-6)
Recommended Standards
- 3-Morpholinopyrazine-2-carbonitrile (CAS 67130-86-3)
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- 3-Phenyl-4,5-dihydro-1H-pyrazole-5-carboxylic acid (CAS 67718-46-1)
- 2-Phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxazole (CAS 942070-80-6)
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- Diclofenac Impurity 27 (CAS CATO-C4X-105127)
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