(Diethoxymethyl)diphenylphosphine oxide CAS 20570-20-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20570-20-1 |
| Molecular Formula | C17H21O3P |
| Molecular Weight | 304.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(Diethoxymethyl)diphenylphosphine oxide (CAS 20570-20-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H21O3P. Molecular weight: 304.32 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H21O3P |
| Molecular Weight | 304.32 g/mol |
| Appearance | Off-white to pale 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) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Diethoxymethyl Standards
- 2-(Diethoxymethyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1218790-41-0)
- 3-(Diethoxymethyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1333319-77-9)
- 2-[(Z)-2-[4-(Diethoxymethyl)phenyl]ethenyl]pyrimidin-4-amine (CAS 303995-69-9)
- 2-(diethoxymethyl)-6-(trifluoromethyl)-1H-benzimidazole (CAS 1520678-17-4)
- 5-(Diethoxymethyl)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 1171634-02-8)
- 4-(diethoxymethyl)-1-(4-nitrophenyl)-1H-1,2,3-triazole (CAS 1012081-58-1)
- 4-(Diethoxymethyl)-1-(4-methoxybenzyl)-1H-1,2,3-triazole (CAS 1494137-73-3)
- 1-(3-(Diethoxymethyl)tetrahydrofuran-2-yl)-1H-benzo[d][1,2,3]triazole (CAS 186762-60-7)
Recommended Standards
- 3-Ethoxy-4-((2-fluorobenzyl)oxy)benzohydrazide (CAS 1706453-14-6)
- (E)-4-Methyl-N-(3-nitrobenzylidene)benzenesulfonamide (CAS 73845-02-0)
- 4-Methyl-N-(2-nitrobenzylidene)benzenesulfonamide (CAS 14674-35-2)
- Methyl 3-Amino-5-(trifluoromethyl)benzoate (CAS 22235-25-2)
- 4-(2-(5-(Trifluoromethyl)-1H-pyrazol-1-yl)thiazol-4-yl)benzonitrile (CAS 1227954-96-2)
- Ethyl (1S,3S,4S,5S)-rel-2-Boc-5-hydroxy-2-azabicyclo[2.2.1]heptane-3-carboxylate (CAS 1173294-47-7)
- Cyclopropyl-(5-methylpyridin-2-ylmethyl)-amine (CAS 1505926-86-2)
- ({5-[(4-Chlorophenoxy)methyl]-1,3,4-thiadiazol-2-yl}amino)(oxo)acetic acid (CAS 931374-35-5)
- 1-(5-Methylbenzo[d]oxazol-2-yl)piperidine-4-carboxylic acid (CAS 1048917-20-9)
- Neuroendocrine Regulatory Peptide-4 (human, mouse, rat) (H-7266.1000) (CAS 922704-18-5)
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 13829788188 / jacky.chen@cato-chem.com