4,6-Dibromo-2-methylpyridin-3-ol CAS 188923-75-3
| CAS No. | 188923-75-3 |
| Molecular Formula | C6H5Br2NO |
| Molecular Weight | 266.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,6-Dibromo-2-methylpyridin-3-ol (CAS 188923-75-3) is a high-purity analytical reference standard with the molecular formula C6H5Br2NO and a molecular weight of 266.92 g/mol.
The molecular framework of 4,6-Dibromo-2-methylpyridin-3-ol (C6H5Br2NO) is characterized by an amide group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4,6-Dibromo-2-methylpyridin-3-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.
Physical & Chemical Properties
| Molecular Formula | C6H5Br2NO |
| Molecular Weight | 266.92 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 2,6-Dibromo-4-methoxypyridine (CAS 117873-72-0)
- 2,4-Dibromo-6-methoxypyridine (CAS 117873-73-1)
- 2,5-Dibromo-4-methoxypyridine (CAS 1211520-71-6)
- 2,3-Dibromo-5-methoxypyridine (CAS 1211521-89-9)
- 2,5-Dibromo-3-(hydroxymethyl)pyridine (CAS 1227490-32-5)
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- 2,4-Dibromo-3-methoxypyridine (CAS 1256823-10-5)
- 3,5-Dibromo-2-hydrazinylpyridine (CAS 1289024-95-8)
Recommended Standards
- 4-Amino-3,5-dibromophenol (CAS 188721-64-4)
- 3,5-Dibromopyridine-4-methanol (CAS 197008-13-2)
- (4,6-Dibromopyridin-3-yl)methanol (CAS 1806347-32-9)
- (2,6-Dibromopyridin-3-yl)methanol (CAS 55483-88-0)
- Ethyl 2-cyclooctylideneacetate (CAS 1903-24-8)
- (Z)-4-(2-hydroxy-3-methoxyphenyl)but-3-en-2-one (CAS 22214-32-0)
- 4-Cyclopentylpyrrolidine-3-carboxylic acid (CAS 1341538-55-3)
- (R)-1-(Methylamino)propan-2-ol hydrochloride (CAS 929533-64-2)
- 2,2-Dimethylchroman-8-carbaldehyde (CAS 263903-18-0)
- 4-Amino-N,N-diisobutylbenzenesulfonamide (CAS 106842-17-5)
- Fmoc-3,5-diiodo-Tyr-OH (CAS 103213-31-6)
- 6-(2,6-Dichlorobenzyl)-2,5,7-trimethylpyrazolo[1,5-a]pyrimidine (CAS 478064-83-4)
- 7-Methoxyisoquinolin-5-amine (CAS 608515-66-8)
- [Tyr0] Fibrinopeptide A, human (CAS 103226-11-5)
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