2,2-Dimethoxybenzophenone CAS 13102-33-5
| CAS No. | 13102-33-5 |
| Molecular Formula | C15H14O3 |
| Molecular Weight | 242.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,2-Dimethoxybenzophenone (CAS 13102-33-5), molecular formula C15H14O3 and molecular weight 242.27 g/mol, is a CATO reference standard with documented purity and traceability.
2,2-Dimethoxybenzophenone (C15H14O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C15H14O3 |
| Molecular Weight | 242.27 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
Related Dimethoxybenzophenone Standards
Recommended Standards
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- Ethyl 1-benzyl-4-cyanopiperidine-4-carboxylate (CAS 123730-67-6)
- N-(3,4-dichlorobenzyl)-1-methyl-1H-pyrazol-3-amine (CAS 1178648-66-2)
- Poly(lactide-co-glycolide) 6-arm dipentaerythritol initiated (55:45 LA:GA, Mn 40,000 – 60,000 Da) (CAS CATO-C3D-263088)
- 9-Methyl-2-(methylthio)-5H-thiochromeno[4,3-d]pyrimidine (CAS 478246-76-3)
- Insulin Degludec Impurity 18 (CAS CATO-C4X-215718)
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