3-Methyl-1-(triphenylphosphoranylidene)butan-2-one CAS 19753-67-4
| CAS No. | 19753-67-4 |
| Molecular Formula | C23H23OP |
| Molecular Weight | 346.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Methyl-1-(triphenylphosphoranylidene)butan-2-one (C23H23OP) contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies 3-Methyl-1-(triphenylphosphoranylidene)butan-2-one (CAS 19753-67-4), a certified reference material (molecular formula C23H23OP, MW 346.40 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 3-Methyl-1-(triphenylphosphoranylidene)butan-2-one 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 | C23H23OP |
| Molecular Weight | 346.40 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 | 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.) | 1962 |
Related Methyl Standards
- 1-(Triphenylphosphoranylidene)pentan-2-one (CAS 17615-01-9)
- Methyl 3-(triphenylphosphoranylidene)propanoate (CAS 40955-14-4)
- Ethyl (triphenylphosphoranylidene)carbamate (CAS 17437-51-3)
- 2605-67-6 Methyl (triphenylphosphoranylidene)acetate Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester Acetic acid, (triphenylphosphoranylidene)-, methyl ester (Carbomethoxymethylene)triphenylphosphorane EINECS 220-018-4 ((Methoxycarbonyl)methylene)triphenylphosphorane Methyl triphenylphosphoranylideneacetate NSC 117573 NSC 407395 Triphenyl(carbomethoxymethylene)phosphorane (Triphenylphosphoranylidene)acetic acid methyl ester (CAS 2605-67-6)
- 3-Methyl-5-((triphenylphosphoranylidene)methyl)isoxazole (CAS 110302-06-2)
- Methyl (triphenylphosphoranylidene)carbamate (CAS 40438-23-1)
- methyl (triphenylphosphoranylidene)acetate (CAS 21204-67-1)
- 3-(Triphenylphosphoranylidene)dihydrofuran-2,5-dione (CAS 906-65-0)
Recommended Standards
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- 5-(1-Butylpiperidin-2-yl)-N-cyclobutylpyridin-2-amine (CAS 1352507-81-3)
- Ethyl 1-benzyl-4,4-difluoropyrrolidine-3-carboxylate (CAS 1799916-90-7)
- p-Phenetidine (CAS 156-43-4)
- 5-(4-Butoxyphenyl)-4-ethyl-4H-1,2,4-triazole-3-thiol (CAS 847503-27-9)
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