3,4-Dibromo-5-cyclopropoxypyridine CAS 1243387-19-0
| CAS No. | 1243387-19-0 |
| Molecular Formula | C8H7Br2NO |
| Molecular Weight | 292.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,4-Dibromo-5-cyclopropoxypyridine (CAS 1243387-19-0), a certified reference material (molecular formula C8H7Br2NO, MW 292.96 g/mol) for analytical method development and quality control.
3,4-Dibromo-5-cyclopropoxypyridine (C8H7Br2NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C8H7Br2NO |
| Molecular Weight | 292.96 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 | 1 |
Related Dibromo Standards
- 2,3-Dibromo-5-cyclopropoxypyridine (CAS 1243387-22-5)
- 3,5-Dibromo-4-methylbenzamide (CAS 289039-51-6)
- 4,6-Dibromo-1,3-dihydroisobenzofuran-5-amine (CAS 2408330-99-2)
- 2,4-Dibromo-1-isothiocyanatobenzene (CAS 13037-63-3)
- 1,2-Dibromo-4-isothiocyanatobenzene (CAS 98278-99-0)
- 2,6-dibromo-1,3-benzothiazole (CAS 408328-13-2)
- 2,6-Dibromo-4-fluoro-3-methylbenzonitrile (CAS 1188428-64-9)
- 2,3-Dibromo-6-fluorophenylacetonitrile (CAS 1803716-91-7)
Recommended Standards
- N-(3,5-dibromophenyl)acetamide (CAS 119430-40-9)
- 7-Bromo-2,6-dichloroquinazolin-4-amine (CAS 2384855-93-8)
- 1-(2-Amino-4-bromophenyl)-2-bromoethanone (CAS 1261581-05-8)
- 6-Bromo-4,7-dichloro-2-methylpyrido[2,3-d]pyrimidine (CAS 2793406-12-7)
- (4S,4'S)-1,1'-Di([1,1'-biphenyl]-4-yl)-4,4'-diisopropyl-4,4',5,5'-tetrahydro-1H,1'H-2,2'-biimidazole (CAS 2374958-86-6)
- 1-(2-Cyclopropyl-6-ethylpyrimidin-4-yl)-1H-pyrazole-3-carboxylic acid (CAS 1707375-80-1)
- 2-((2,3-Dihydrobenzofuran-5-yl)methyl)isothiazol-3(2H)-one (CAS 918107-67-2)
- 1-(2-(Trifluoromethyl)phenyl)thiourea (CAS 1736-71-6)
- Epothilone C (CAS 186692-73-9)
- (1S,4S)-2-methylbicyclo[2.2.1]Hept-5-ene-2-carboxylic acid (CAS 1212432-27-3)
- Sorafenib Impurity 28 (CAS CATO-C4X-112428)
- [1,1':3',1''-Terphenyl]-4,4''-diamine (CAS 130821-37-3)
- n-(3-(Tert-butyl)-1h-pyrazol-5-yl)-3-methylbutanamide (CAS 84958-81-6)
- Liraglutide Impurity 30 (CAS CATO-C4X-199230)
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