2-Bromo-3-chloropyridin-4-ol CAS 1211525-75-5
| CAS No. | 1211525-75-5 |
| Molecular Formula | C5H3BrClNO |
| Molecular Weight | 208.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-Bromo-3-chloropyridin-4-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
2-Bromo-3-chloropyridin-4-ol (CAS 1211525-75-5), molecular formula C5H3BrClNO and molecular weight 208.44 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Bromo-3-chloropyridin-4-ol (C5H3BrClNO) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine/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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C5H3BrClNO |
| Molecular Weight | 208.44 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 2-Bromo-6-chloropyridin-3-ol (CAS 1020253-16-0)
- 5-Bromo-4-chloro-2-pyrimidinamine (CAS 1044767-99-8)
- 2-Bromo-5-chloropyridin-4-ol (CAS 1196145-66-0)
- 5-Bromo-2-chloro-4-hydroxypyridine (CAS 1196146-82-3)
- 4-Bromo-5-chloropyridin-3-ol (CAS 1211517-85-9)
- 3-Bromo-2-chloropyridin-4-ol (CAS 1211519-66-2)
- 4-Bromo-6-chloropyridin-3-ol (CAS 1211520-41-0)
- 2-Bromo-4-Chloropyridin-3-Ol (CAS 1211583-11-7)
Recommended Standards
- 4-Bromo-2-chloropyridin-3-ol (CAS 1211583-55-9)
- 6-Bromo-4-chloropyridin-3-ol (CAS 1211584-86-9)
- 3-Bromo-5-chloropyridine 1-oxide (CAS 1221793-62-9)
- 4-Bromo-3-chloropyridin-2(1H)-one (CAS 1227511-48-9)
- 4-(Difluoromethyl)-6-methoxy-2-methylpyridine-3-sulfonyl chloride (CAS 1805610-84-7)
- 2-amino-7-(4-chlorophenyl)thiazolo[4,5-d]pyridazin-4(5H)-one (CAS 941868-66-2)
- tert-Butyl (3-(4-amino-5-formylpyridin-3-yl)propyl)carbamate (CAS 1393572-68-3)
- FGF basic (93-110) (human, bovine) trifluoroacetate salt (CAS 1807793-49-2)
- (Z)-3-(2-Cyano-4-hydroxyphenyl)acrylic acid (CAS 27514-61-0)
- (±)-1-Bromo-2-ethylhexane-d17 (CAS 1398065-97-8)
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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