3,5-diphenyl-4H-pyran-4-one CAS 18357-38-5
| CAS No. | 18357-38-5 |
| Molecular Formula | C29H40O10 |
| Molecular Weight | 548.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,5-diphenyl-4H-pyran-4-one (CAS 18357-38-5), a certified reference material (molecular formula C29H40O10, MW 548.62 g/mol) for analytical method development and quality control.
3,5-diphenyl-4H-pyran-4-one (C29H40O10) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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).
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.
CATO manufactures 3,5-diphenyl-4H-pyran-4-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C29H40O10 |
| Molecular Weight | 548.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related diphenyl Standards
- (11bR)-2,6-diphenyl-3,3,5,5-tetraoxide-dinaphtho[2,1-d:1',2'f][1,3,2]dithiazepine (CAS 1245748-54-2)
- (11bS)-2,6-diphenyl-3,3,5,5-tetraoxide-Dinaphtho[2,1-d:1',2'f][1,3,2]dithiazepine (CAS 1384452-66-7)
- 1,27-Diphenyl-2,5,8,11,14,17,20,23,26-nonaoxaheptacosane (CAS 105891-54-1)
- Diphenyl[4-(4-Fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonyl)amino-pyrimidin-5-yl-methyl]phosphine Oxide-d6 (CAS 1185122-39-7)
- 2,6-Bis(5,6-diphenyl-1,2,4-triazin-3-yl)pyridine (CAS 35171-28-9)
- 2,2'-Diphenyl-[3,3'-biphenanthrene]-4,4'-diol (CAS 200810-26-0)
- 2-((5,6-Diphenyl-1,2,4-triazin-3-yl)thio)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)acetamide (CAS 442651-77-6)
- Sodium 4,7-diphenyl-1,10-phenanthroline-3,8-disulfonate (CAS 482324-38-9)
Recommended Standards
- 150033-85-5 Cycloshizukaol A (CAS 150033-85-5)
- Icaritin Impurity 2 (CAS CATO-C4X-27642)
- 8-Hydroxypinoresinol-4′-O-β-D-glucopyranoside (CAS 102582-69-4)
- Icaritin Impurity 3 (CAS CATO-C4X-27643)
- (3-Bromophenyl)(3,4-dimethoxyphenyl)methanone (CAS 681469-97-6)
- Antimony(III) methoxide (CAS 29671-18-9)
- (4E)-4-[(2H-1,3-Benzodioxol-5-yl)methylidene]-2-(morpholin-4-yl)-4,5-dihydro-1H-imidazol-5-one (CAS 860611-97-8)
- 2,4,6-Trichloronicotinamide (CAS 53815-29-5)
- 4-Cyano-2-piperidinomethyl benzophenone (CAS 898751-89-8)
- 5-(Benzofuran-2-ylmethylene)-2-thioxothiazolidin-4-one (CAS 199279-79-3)
- 1073608-18-0 5-Chloro-N-cyclohexyl-valeramide-d11 5-Chloro-N-cyclohexylpentanamide-d11 5-Chloro-N-cyclohexylvaleramide-d11 N-Cyclohexyl-5-chloropentanamide-d11 (CAS 1073608-18-0)
- 2-Amino-5-methoxybenzeneacetic acid (CAS 38367-42-9)
- 6-Bromo-3-(4-fluorophenyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 1402232-98-7)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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