(4-Bromopyrimidin-2-yl)cyclopentylamine CAS 1269291-43-1
| CAS No. | 1269291-43-1 |
| Molecular Formula | C9H12BrN3 |
| Molecular Weight | 242.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4-Bromopyrimidin-2-yl)cyclopentylamine (CAS 1269291-43-1) is a high-purity analytical reference standard with the molecular formula C9H12BrN3 and a molecular weight of 242.12 g/mol.
The molecular framework of (4-Bromopyrimidin-2-yl)cyclopentylamine (C9H12BrN3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C9H12BrN3 |
| Molecular Weight | 242.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromopyrimidin Standards
- 1-(5-Bromopyrimidin-2-yl)cyclopentan-1-amine (CAS 1344019-64-2)
- 2-(5-Bromopyrimidin-2-yl)thiazole (CAS 1563530-72-2)
- 1-(5-Bromopyrimidin-2-yl)cyclopropanecarboxamide (CAS 1447607-75-1)
- 1-(5-Bromopyrimidin-2-yl)cyclopropane-1-carboxylic acid (CAS 1402665-32-0)
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Recommended Standards
- 5-Bromo-2-(piperidin-4-yl)pyrimidine (CAS 1256818-45-7)
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- 4-chloro-2-cyanobenzene-1-sulfonyl chloride (CAS 1251087-10-1)
- 5-Bromo-2-(piperidin-2-yl)pyrimidine (CAS 1342628-56-1)
- 2-(Thiazol-2-yl)acetaldehyde (CAS 1095714-43-4)
- Isopropyl 3-(aminomethyl)benzoate (CAS 1183045-29-5)
- Ethyl 6-(tert-butyl)-4-chloroquinoline-3-carboxylate (CAS 246168-74-1)
- Cefamandole Impurity 20 (CAS CATO-C4X-122120)
- 1H-Perfluoro-1-octyne (CAS 55756-24-6)
- Ethyl 6-chloro-3-fluoropicolinate (CAS 1214363-79-7)
- Terbutaline Impurity 80 (CAS CATO-C4X-118380)
- Pramipexole Impurity 41 (CAS 104617-50-7)
- 3-Acetylphenylboronic acid (CAS 204841-19-0)
- Semaglutide impurity 200 (CAS CATO-C4X-2226200)
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