Ethyl 3-(diphenylphosphino)benzoate CAS 223511-00-0
| CAS No. | 223511-00-0 |
| Molecular Formula | C21H19O2P |
| Molecular Weight | 334.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 3-(diphenylphosphino)benzoate (C21H19O2P) contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Ethyl 3-(diphenylphosphino)benzoate (CAS 223511-00-0), molecular formula C21H19O2P and molecular weight 334.35 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethyl 3-(diphenylphosphino)benzoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H19O2P |
| Molecular Weight | 334.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
Related Ethyl Standards
- 2-(Diphenylphosphino)-6-(tert-pentyl)pyridine (CAS 947315-18-6)
- 4-(Diphenylphosphino)-N,N-diethylaniline (CAS 63370-87-6)
- (S)-8-(diphenylphosphino)-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 1222630-45-6)
- (R)-8-(Diphenylphosphino)-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 960128-64-7)
- 2-[2-(Diphenylphosphino)phenyl]-4,5-dihydrooxazole (CAS 179117-13-6)
- 2-(Diphenylphosphino)biphenyl (CAS 13885-09-1)
- (1R)-1-(2-(Diphenylphosphino)cyclohexyl)-N,N-dimethylethanamine (CAS 1027065-42-4)
- 6-(Diphenylphosphino)-2,2'-bipyridine (CAS 152194-39-3)
Recommended Standards
- Ethyl 2-(4-(methoxycarbonyl)benzamido)thiazole-4-carboxylate (CAS 391876-97-4)
- Fararidine (CAS 51059-64-4)
- Ethyl 2-(2-(benzo[d][1,3]dioxol-5-yl)acetamido)thiazole-4-carboxylate (CAS 922013-52-3)
- Methyl (4-(2-((2-carbamoylphenyl)amino)-2-oxoethyl)thiazol-2-yl)carbamate (CAS 946236-45-9)
- 1-Chloro-3-ethoxy-5-(trifluoromethyl)benzene (CAS 1881332-01-9)
- 3-Bromo-4-chloro-8-methylquinoline (CAS 1204810-49-0)
- (1H-imidazol-2-yl)(3-(trifluoromethyl)phenyl)methanone (CAS 62457-93-6)
- N-(4-(3-Phenylacrylamido)butyl)benzamide (CAS 64223-54-7)
- Methyl 7-isopropyl-2-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-5-carboxylate (CAS 1798723-27-9)
- (S)-2-Amino-N-cyclopropyl-N-(isoquinolin-1-ylmethyl)-3-methylbutanamide (CAS 1354004-08-2)
- 1-(2-Hydroxyethyl)-1h-benzimidazole-5-carboxylic acid (CAS 890094-09-4)
- 4-((Thiophen-2-ylmethyl)amino)phenol (CAS 3139-28-4)
- Methyl 2-(bromomethyl)-6-cyanobenzoate (CAS 1022980-69-3)
- Vancomycin Hexapeptide (CAS 115236-65-2)
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