137178-88-2 5-Bromo-2-(chlorocarbonyl)pyridine 5-bromopyridine-2-carbonyl chloride CAS 137178-88-2
| CAS No. | 137178-88-2 |
| Molecular Formula | C6H3BrClNO |
| Molecular Weight | 220.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 220.45 g/mol gives 137178-88-2 5-Bromo-2-(chlorocarbonyl)pyridine 5-bromopyridine-2-carbonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
137178-88-2 5-Bromo-2-(chlorocarbonyl)pyridine 5-bromopyridine-2-carbonyl chloride (CAS 137178-88-2), molecular formula C6H3BrClNO and molecular weight 220.45 g/mol, is a CATO reference standard with documented purity and traceability.
137178-88-2 5-Bromo-2-(chlorocarbonyl)pyridine 5-bromopyridine-2-carbonyl chloride (C6H3BrClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. 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 | C6H3BrClNO |
| Molecular Weight | 220.45 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.) | 1996 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 5-Bromo-4-chloropicolinaldehyde (CAS 1060802-20-1)
- 5-Bromo-2-chloroisonicotinaldehyde (CAS 1060802-23-4)
- 5-Bromo-4-chloronicotinaldehyde (CAS 1060802-24-5)
- 4-Bromo-6-chloropyridine-3-carbaldehyde (CAS 1060805-64-2)
- 6-Bromo-4-chloropicolinaldehyde (CAS 1060811-19-9)
- 2-Bromo-6-chloropyridine-4-carbaldehyde (CAS 1060811-22-4)
- 6-Bromo-4-chloronicotinaldehyde (CAS 1060811-24-6)
- 4-Bromo-6-chloropicolinaldehyde (CAS 1060811-63-3)
Recommended Standards
- 2-Bromo-4-chloronicotinaldehyde (CAS 1289197-78-9)
- 2-Bromopyridine-6-carbonyl chloride (CAS 139487-69-7)
- 4-Bromo-3-chloropicolinaldehyde (CAS 1289114-25-5)
- 2-Bromo-5-chloropyridine-4-carboxaldehyde (CAS 921630-14-0)
- 1-(2-Fluoroethyl)-5-methyl-1H-pyrazole-4-carbaldehyde (CAS 1443279-51-3)
- 1-Phenyl-1H-pyrrole-2,5-dione compound with furan-2,5-dione and styrene (1:1:1) (CAS 95877-36-4)
- 2-(2-(3,4,5-Trimethoxybenzoyl)hydrazine-1-carbonyl)benzoic acid (CAS 356526-74-4)
- 7-Desdimethylamino-7-((2-(methylamino)ethyl)(methyl))amino)-Minocycline (CAS CATO-C4X-169942)
- Piperacillin EP Impurity R (CAS CATO-C4X-173225)
- (R)-Dimethenamid (CAS 163515-13-7)
- Lovastatin Acid Triol Sodium Salt (CAS 132294-94-1)
- (S)-5-bromo-1-methylisoindoline (CAS 1286768-83-9)
- 5-Chloro-1,3-benzoxazole-2-carbothioamide (CAS 33653-00-8)
- Galanin (1-13)-Neuropeptide Y (25-36) amide (CAS 147138-51-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com