3-(Triphenyl-λ5-phosphanylidene)pyrrolidine-2,5-dione CAS 28118-79-8
| CAS No. | 28118-79-8 |
| Molecular Formula | C22H18NO2P |
| Molecular Weight | 359.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage, 3-(Triphenyl-λ5-phosphanylidene)pyrrolidine-2,5-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 359.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-(Triphenyl-λ5-phosphanylidene)pyrrolidine-2,5-dione (CAS 28118-79-8) is a high-purity analytical reference standard with the molecular formula C22H18NO2P and a molecular weight of 359.36 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C22H18NO2P |
| Molecular Weight | 359.36 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) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
Related Triphenyl Standards
- 2,4,6-Triphenyl-1,3,5,2,4,6-trithiatriborinane (CAS 1870-69-5)
- 3-(Triphenyl-l5-phosphaneylidene)pentane-2,4-dione (CAS 1474-32-4)
- 4-Methyl-1-(triphenyl-lambda5-phosphanylidenE)-pentan-2-one (CAS 27653-95-8)
- (R)-1,1,2-triphenyl-2-(piperidin-1-yl)ethan-1-ol (CAS 213995-12-1)
- (S)-1,1,2-triphenyl-2-(piperidin-1-yl)ethan-1-ol (CAS 869495-24-9)
- 1,3,5-Triphenyl-1,3,5-triazinane-2,4,6-trione (CAS 1785-02-0)
- 2-(triphenyl-phosphanylidene)-propionic acid ethyl ester (CAS 21382-82-1)
- 1',3',5'-Triphenyl-1'H-1,4'-bipyrazole (CAS 894085-99-5)
Recommended Standards
- 2,4-Dimethoxy-3-methyl-N-(3-(trifluoromethyl)phenyl)benzenesulfinamide (CAS 338981-86-5)
- 4-(2-azidoethylsulfanyl)-2-(2,6-dioxo-3-piperidyl)isoindoline-1,3-dione (CAS 2378582-72-8)
- [4-(tert-butoxycarbonylamino)-4-methyl-cyclohexen-1-yl] trifluoromethanesulfonate (CAS 2138510-40-2)
- 4-Amino-N-(1-(2-nitrophenyl)-1H-pyrazol-4-yl)benzenesulfonamide (CAS 62537-86-4)
- 3-(Benzyloxy)-1-(hydroxymethyl)cyclobutanol (CAS 2161553-89-3)
- N-(4-Bromophenyl)-2-((5-(2-bromophenyl)-1,3,4-oxadiazol-2-yl)thio)propanamide (CAS 334503-67-2)
- 2-(Azepan-1-yl)-N-(6-(pyrrolidin-1-ylsulfonyl)benzo[d]thiazol-2-yl)acetamide (CAS 868213-79-0)
- 2,3,6-Tribromobenzonitrile (CAS 1261866-42-5)
- N-Methoxyadamantan-2-imine (CAS 76300-15-7)
- 1902AB 247170-27-0 3-Fluoro-4-(trifluoromethyl)benzamide C8H5F4NO (CAS 247170-27-0)
- Fluoroimide (CAS 41205-21-4)
- 2-((4-Fluorophenyl)amino)acetamide (CAS 85098-68-6)
- 3-(1-(tert-Butoxycarbonyl)piperidin-3-yl)propiolic acid (CAS 1823259-06-8)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
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