2,4-Diphenyl-6-(4´-methoxyphenyl)pyrylium perchlorate CAS 47501-44-0
| CAS No. | 47501-44-0 |
| Molecular Formula | C24H19O2 |
| Molecular Weight | N/A |
| 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.
2,4-Diphenyl-6-(4´-methoxyphenyl)pyrylium perchlorate (CAS 47501-44-0), molecular formula C24H19O2ClO4 and molecular weight 438.86 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,4-Diphenyl-6-(4´-methoxyphenyl)pyrylium perchlorate (C24H19O2ClO4) contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 438.86 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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 | C24H19O2 ClO4 |
| Molecular Weight | 438.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1970 |
| Halogen Content | Cl-containing |
Related Diphenyl Standards
- Methyl 1,3-diphenyl-1H,6H-pyrrolo[2,3-c]pyrazole-5-carboxylate (CAS 1000931-16-7)
- R(+) Diphenyl Amine Dimer Impurity (CAS 10024-74-5)
- N-(4-(5,6-Diphenyl-1,2,4-triazin-3-yl)phenyl)acetamide (CAS 100321-96-8)
- (E)-1,3-Diphenyl-4-(phenyldiazenyl)-1H-pyrazol-5-amine (CAS 100644-98-2)
- 3,5-Diphenyl-1H-pyrrole-2-carboxylic acid (CAS 100784-98-3)
- Diphenyl N-[(trifluoromethyl)sulfonyl]phosphoramidate (CAS 1009647-84-0)
- 6-Methyl-1,1-diphenyl-1,3-dihydroisobenzofuran (CAS 10126-32-6)
- diphenyl(sulfanyl)-$l^{5}-phosphanethione (CAS 1015-38-9)
Recommended Standards
- (2-Bromothiazol-5-yl)(4-fluoropiperidin-1-yl)methanone (CAS 1290136-86-5)
- 5-(4-Fluoro-2-hydroxyphenyl)pyrimidin-2-ol (CAS 1261903-66-5)
- 4'-Fluoro-3'-(trifluoromethyl)-[1,1'-biphenyl]-3-amine (CAS 1032506-81-2)
- N-[(3-Methoxyphenyl)methyl]-1-phenylcyclopentane-1-carboxamide (CAS 1022319-91-0)
- 2-(Thieno[2,3-b]quinolin-2-yl)-5-(m-tolyl)-1,3,4-oxadiazole (CAS 478079-55-9)
- 2-(Iodomethyl)-5-phenyloxolane (CAS 36842-33-8)
- Empagliflozin Impurity 300 (CAS CATO-C4X-1065300)
- 5-Cyano-1H-indole-2-carboxamide (CAS 877998-55-5)
- ethyl (3R)-3-oxazol-4-ylpiperidine-1-carboxylate (CAS 2380799-75-5)
- Semaglutide Impurity 142 (CAS CATO-C4X-2226142)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com