1-[(2S)-2-Bromopyrrolidin-1-yl]-2-(cyclopentylamino)ethan-1-one CAS 1881275-85-9
| CAS No. | 1881275-85-9 |
| Molecular Formula | C11H19BrN2O |
| Molecular Weight | 275.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-[(2S)-2-Bromopyrrolidin-1-yl]-2-(cyclopentylamino)ethan-1-one (CAS 1881275-85-9) is a high-purity analytical reference standard with the molecular formula C11H19BrN2O and a molecular weight of 275.19 g/mol.
Owing to an amide group, a hydroxyl group, an ether linkage, bromine substitution, 1-[(2S)-2-Bromopyrrolidin-1-yl]-2-(cyclopentylamino)ethan-1-one is typically white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 275.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H19BrN2O |
| Molecular Weight | 275.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related S Standards
- 1-Benzyl-3-bromopyrrolidin-2-one (CAS 77868-84-9)
- 1-(3-Bromopyrrolidin-1-yl)-2-chloroethanone (CAS 1353947-31-5)
- 2-(3-Bromopyrrolidin-1-yl)acetic acid (CAS 1353959-48-4)
- 1-(3-Bromopyrrolidin-1-yl)ethan-1-one (CAS 1353989-43-1)
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- 3-Bromopyrrolidin-2-one (CAS 40557-20-8)
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