3,5-Dibromopyridine-2,4-diol CAS 80791-78-2
| CAS No. | 80791-78-2 |
| Molecular Formula | C5H3Br2NO2 |
| Molecular Weight | 268.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Dibromopyridine-2,4-diol (C5H3Br2NO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
3,5-Dibromopyridine-2,4-diol (CAS 80791-78-2) is a high-purity analytical reference standard with the molecular formula C5H3Br2NO2 and a molecular weight of 268.89 g/mol.
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.
As a certified reference material (CRM), 3,5-Dibromopyridine-2,4-diol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H3Br2NO2 |
| Molecular Weight | 268.89 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromopyridine Standards
- 5,6-Dibromopyridine-2-thiol (CAS 1805123-39-0)
- 2,6-Dibromopyridine-3,4-diamine (CAS 1121583-59-2)
- 3,6-Dibromopyridine-2-methanol (CAS 1227601-31-1)
- 5,6-Dibromopyridine-2,3-diamine (CAS 1615736-65-6)
- 3,5-Dibromopyridine-4-methanol (CAS 197008-13-2)
- 3,5-Dibromopyridine-2,6-diamine (CAS 76942-20-6)
- 2,6-Dibromopyridine-4-carboxaldehyde (CAS 316800-46-1)
- 2,6-Dibromopyridine-3-acetonitrile (CAS 1227590-57-9)
Recommended Standards
- 3,5-Dibromo-1H-pyrazole-4-carboxamide (CAS 2411097-48-6)
- 4,5-Dibromo-1H-pyrrole-2-carboxylic acid (CAS 34649-21-3)
- 2-Bromo-1-(3-bromoisoxazol-5-yl)ethanone (CAS 76596-54-8)
- 3005-27-4 Maleimide, dibromo-N-methyl- Maleimide, 2,3-dibromo-N-methyl- (8CI) 1H-Pyrrole-2,5-dione, 3,4-dibromo-1-methyl- (9CI) 5-21-10-00050 (Beilstein Handbook Reference) BRN 0129149 N-Methyl-2,3-dibromomaleimide N-Methyl-dibromomaleinimide NSC 120444 (CAS 3005-27-4)
- 3',4'-Dimethyl-[1,1'-biphenyl]-4-carbaldehyde (CAS 343604-05-7)
- 4-[(5-Bromo-2-ethoxy-4-formylphenoxy)methyl]benzoic acid (CAS 443289-92-7)
- N-(4-((4-methoxybenzyl)amino)-4-oxobutyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 956959-90-3)
- 3-Chloro-N-(4-ethoxyphenyl)propanamide (CAS 19314-15-9)
- tert-butyl 6-chloro-2,3-dihydropyrrolo[3,2-c]pyridine-1-carboxylate (CAS 1649470-12-1)
- (R)-tert-Butyl (1-(4-chlorophenyl)-2-oxoethyl)carbamate (CAS 1429382-72-8)
- 5-chloro-3-cycloheptyl-3H-[1,2,3]triazolo[4,5-d]pyrimidine (CAS 2206321-83-5)
- 4-(4-Oxopiperidin-1-yl)benzonitrile (CAS 79421-46-8)
- (2S,3S)-3-Phenylpyrrolidine-2-carboxylic acid (CAS 118758-49-9)
- Tirzepatide (CAS 2023788-19-2)
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