5-Bromo-2-cyclopropylpyrimidine CAS 304902-96-3
| CAS No. | 304902-96-3 |
| Molecular Formula | C7H7BrN2 |
| Molecular Weight | 199.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Bromo-2-cyclopropylpyrimidine (CAS 304902-96-3), molecular formula C7H7BrN2 and molecular weight 199.05 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, bromine substitution, an aromatic ring system, 5-Bromo-2-cyclopropylpyrimidine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 199.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C7H7BrN2 |
| Molecular Weight | 199.05 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.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 3-Bromo-6-cyclopropylpyridazine (CAS 1046816-40-3)
- 4-Bromo-2-cyclopropylpyrimidine (CAS 1086381-83-0)
- 4-Bromo-6-cyclopropylpyrimidine (CAS 1086382-13-9)
- 2-Bromo-5-cyclopropylpyrazine (CAS 1086382-78-6)
- 2-Bromo-6-cyclopropylpyrazine (CAS 1086382-98-0)
- 5-Bromo-2,3-dihydro-7-azaindole (CAS 115170-40-6)
- 5-Bromo-1,5-dihydroimidazo[1,2-a]pyridine (CAS 1160995-08-3)
- 7-Bromo-1H,2H,3H-pyrrolo[3,2-c]pyridine (CAS 1198293-24-1)
Recommended Standards
- 4-Bromobenzimidamide (CAS 22265-36-7)
- 6-Bromo-2,3-dihydro-1H-pyrrolo[3,2-c]pyridine (CAS 74976-34-4)
- 4-Bromo-2,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 562074-42-4)
- 6-Bromo-2,3-dihydro-imidazo[1,2-a]pyridine (CAS 793628-63-4)
- 5-(Chloromethyl)-3-phenyl-1,2,4-oxadiazole (CAS 1822-94-2)
- 5-Methylindazole-3-carboxylic Acid (CAS 1201-24-7)
- Bis(methylcyclopentadienyl)niobium dichloride (CAS 61374-51-4)
- 4-Chloro-5-fluoro-2-nitrophenol (CAS 345-25-5)
- 4-Cyclopropoxy-N2,N2-dimethylpyridine-2,3-diamine (CAS 1243281-83-5)
- N-(4-Chlorobenzyl)quinolin-8-amine (CAS 90266-41-4)
- Diethyl 3-methyl-9-oxo-3-azabicyclo[3.3.1]Nonane-1,5-dicarboxylate (CAS 92727-60-1)
- 2-{[(2-chloropyridin-4-yl)methyl]sulfanyl}ethan-1-amine (CAS 1248974-11-9)
- cis-5,8,11,14-Eicosic Acidtraenoic Acid (CAS 1808-26-0)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
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