CPPHA CAS 693288-97-0
| CAS No. | 693288-97-0 |
| Molecular Formula | C22H15ClN2O4 |
| Molecular Weight | 406.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C22H15ClN2O4, CPPHA contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.82 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies CPPHA (CAS 693288-97-0), a certified reference material (molecular formula C22H15ClN2O4, MW 406.82 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.
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 | C22H15ClN2O4 |
| Molecular Weight | 406.82 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
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- N-(3-chloro-2-methylphenyl)-3-(2-fluoro-4-nitrophenoxy)thiophene-2-carboxamide (CAS 303152-56-9)
- 2-(4-Methoxyphenyl)-4-oxo-4H-chromen-3-yl 2-chlorobenzoate (CAS 306730-64-3)
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- 4-Bromo-N-(4-(cyanomethoxy)phenyl)-1H-pyrrole-2-carboxamide (CAS 1308340-26-2)
- 4,7-Dimethyl-4,5,6,7-tetrahydro-[1,2,5]oxadiazolo[3,4-b]pyrazine (CAS 98778-07-5)
- 2-Amino-N-(2-chloro-6-methylphenyl)thiazole-5-carboxamide (CAS 302964-24-5)
- 1,10-Dibromodecane (CAS 4101-68-2)
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- N-(4-ethoxyphenyl)-3-hydroxy-2-naphthamide (CAS 4711-68-6)
- Ezetimibe Impurity 86 (CAS 1650568-82-3)
- 2-Isopropyl-1,5-dimethyl-1H-pyrazol-3(2H)-one (CAS 897665-83-7)
- Tert-butyl (1-(thietan-3-ylamino)propan-2-yl)carbamate (CAS 1877685-65-8)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
Why CATO?
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