2-(1-Acetylindolin-7-yl)-1-phenylethanone CAS 2665-70-5
| CAS No. | 2665-70-5 |
| Molecular Formula | C21H22Cl2N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(1-Acetylindolin-7-yl)-1-phenylethanone (CAS 2665-70-5) is a high-purity analytical reference standard with the molecular formula C21H22Cl2N3Cl and a molecular weight of 422.78 g/mol.
Structurally, 2-(1-Acetylindolin-7-yl)-1-phenylethanone (C21H22Cl2N3Cl) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 422.78 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C21H22Cl2N3 Cl |
| Molecular Weight | 422.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Acetylindolin Standards
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- N-(1-Acetylindolin-6-yl)-4-fluorobenzamide (CAS 1021208-14-9)
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- N-(1-Acetylindolin-6-yl)-1-(m-tolyl)methanesulfonamide (CAS 1058213-45-8)
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