2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide CAS 13291-46-8
Purity 97%+In StockPharmaceutical Standards
| 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
2,5-Dihydroxyphenyl(diphenyl)phosphine Oxide (CAS 13291-46-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H15O3P. Molecular weight: 310.28 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
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
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- 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)
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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)
- 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)
- 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)
- Q-Peptide trifluoroacetate salt (CAS 1361235-89-3)
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