2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide CAS 13291-46-8
| CAS No. | 13291-46-8 |
| Molecular Formula | C18H15O3P |
| Molecular Weight | 310.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide 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.
2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide (CAS 13291-46-8), molecular formula C18H15O3P and molecular weight 310.28 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H15O3P, 2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide contains a steroid core, a phosphonate group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 310.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C18H15O3P |
| Molecular Weight | 310.28 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
Related Dihydroxyphenyl Standards
- 2-(3,4-Dihydroxyphenyl)-3-hydroxy-6-propyl-4H-chromen-4-one (CAS 1313738-79-2)
- 3-(2,4-Dihydroxyphenyl)-7-hydroxy-4-(2-hydroxyethyl)-2H-chromen-2-one (CAS 553681-51-9)
- 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxychroman-4-one (CAS 215257-15-1)
- Ethyl 4-(2-(2,4-dihydroxyphenyl)-2-oxoethoxy)benzoate (CAS 637750-84-6)
- 1-(2,4-Dihydroxyphenyl)-3-(2,4-dimethoxy-3-methylphenyl)propan-1-one (CAS 1400999-35-0)
- 2-(3,4-Dihydroxyphenyl)-5,6,7-trihydroxy-4H-chromen-4-one (CAS 18003-33-3)
- 2-(3,4-Dihydroxyphenyl)-7-fluoro-3-hydroxy-1-methylquinolin-4(1H)-one (CAS 1313739-02-4)
- 3-(2,4-Dihydroxyphenyl)-7-hydroxy-5-methoxy-2H-chromen-2-one (CAS 1092952-62-9)
Recommended Standards
- N-(3,5-Difluorophenyl)-[1,2,4]triazolo[4,3-a]pyridine-8-sulfonamide (CAS 1325307-36-5)
- 2-[(2-Fluoro-5-nitroanilino)carbonyl]cyclohexanecarboxylic acid (CAS 899588-42-2)
- N-(3,4-difluorophenyl)-[1,2,4]triazolo[4,3-a]pyridine-8-sulfonamide (CAS 1291486-52-6)
- 2-Cyano-3-(1-(2-cyanoethyl)-3-(4-fluorophenyl)-1h-pyrazol-4-yl)acrylic acid (CAS 926189-89-1)
- n-Cyclopentyl-2-(2-iodophenoxy)acetamide (CAS 1147836-18-7)
- Ethyl 8-bromo-2-(bromomethyl)-3-methyl-4,5-dioxo-4,5-dihydro-3H-benzo[e]indole-1-carboxylate (CAS 125365-59-5)
- (2-Bromophenyl)(cyclopentyl)methanone (CAS 1249445-32-6)
- N-(2-((2-Hydroxyethyl)amino)ethyl)oleamide (CAS 5839-65-6)
- (2R,3S,4R,5R)-2-(Hydroxymethyl)-5-(6-((tetrahydrothiophen-3-yl)amino)-9H-purin-9-yl)tetrahydrofuran-3,4-diol (CAS 403789-31-1)
- 2-(Adamantan-1-yl)-N-(4-bromophenyl)acetamide (CAS 708293-02-1)
- N-[2-(5-Formyl-2-furyl)phenyl]acetamide (CAS 893740-79-9)
- 5-Bromo-4-methyl-N-(m-tolyl)pyridin-2-amine (CAS 1220036-88-3)
- (SP-4-1)-[1,3-Bis[2,6-bis(1-ethylpropyl)phenyl]-4,5-dichloro-1,3-dihydro-2H-imidazol-2-ylidene]dichloro(2-methylpyridine)palladium (CAS 1612891-29-8)
- Q-Peptide trifluoroacetate salt (CAS 1361235-89-3)
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