1,5-Dimethyl-3,3-diphenyl-2-pyrrolidone CAS 30223-75-7
| CAS No. | 30223-75-7 |
| Molecular Formula | C18H31NO |
| Molecular Weight | 277.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 277.44 g/mol gives 1,5-Dimethyl-3,3-diphenyl-2-pyrrolidone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1,5-Dimethyl-3,3-diphenyl-2-pyrrolidone (CAS 30223-75-7), molecular formula C18H31NO and molecular weight 277.44 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,5-Dimethyl-3,3-diphenyl-2-pyrrolidone (C18H31NO) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H31NO |
| Molecular Weight | 277.44 g/mol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
Related Dimethyl Standards
- N'-(5,7-Dimethyl-1,3-benzothiazol-2-yl)-N,N-diethylethane-1,2-diamine (CAS 1105188-31-5)
- 4-[2,5-Dimethyl-1-[(tetrahydro-2-furanyl)methyl]-1H-pyrrol-3-yl]-2-thiazolamine (CAS 790232-07-4)
- Ethyl 2-(2,5-dimethyl-1h-pyrrol-1-yl)-4,5-dimethyl-3-thiophenecarboxylate (CAS 352444-96-3)
- 2,6-Dimethyl-4-(6-piperazin-1-ylpyrimidin-4-yl)morpholine (CAS 1204298-20-3)
- 1-(1,3-dimethyl-1H-pyrazol-5-yl)-3-(piperazin-1-yl)piperidin-2-one (CAS 1803562-08-4)
- 2-Boc-1,1-dimethyl-1,2,3,4-tetrahydroisoquinolin-6-ol (CAS 1638765-20-4)
- 4,8-Dimethyl-1-[(3-methylphenyl)methyl]-1,2-dihydroquinolin-2-one (CAS 343374-03-8)
- N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)hydrazinecarbothioamide (CAS 96447-49-3)
Recommended Standards
- 1,1,3,3-Tetramethyl-2-(3-(trimethoxysilyl)propyl)guanidine (CAS 69709-01-9)
- 1-Bromo-3-(chloromethyl)-2,4,5,6-tetrafluorobenzene (CAS 292621-52-4)
- (9Z,12Z,15Z)-Octadeca-9,12,15-trienamide (CAS 79356-91-5)
- 1-Bromo-4-chloro-5-fluoro-2-(trifluoromethyl)benzene (CAS 2169320-40-3)
- 2-Iodo-7-methylnaphthalene (CAS 1261588-76-4)
- Bis-propargyl-PEG3 (CAS 126422-58-0)
- (2-Propoxybenzoyl)serine (CAS 1396967-42-2)
- 5-(2-Methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 485317-15-5)
- (2E,3E)-2-[2-(3,5-Dimethylphenyl)hydrazin-1-ylidene]-3-hydrazinylidene-1-(4-methoxyphenyl)propan-1-one (CAS 338400-36-5)
- Ethyl 7-bromo-4-hydroxy-1-methyl-2-oxo-1,2-dihydro-1,5-naphthyridine-3-carboxylate (CAS 863444-62-6)
- Ethyl 5-bromo-2H-pyrazolo[3,4-b]pyridine-3-carboxylate (CAS 1131604-85-7)
- Azacitidine Impurity 25 (CAS CATO-C4X-138825)
- Infigratinib (CAS 872511-34-7)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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 18665070610 / Nicole.chen@cato-chem.com