5-Bromo-4-methylpyrimidin-2-ol CAS 69849-34-9
| CAS No. | 69849-34-9 |
| Molecular Formula | C5H5BrN2O |
| Molecular Weight | 189.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 189.01 g/mol gives 5-Bromo-4-methylpyrimidin-2-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromo-4-methylpyrimidin-2-ol (CAS 69849-34-9), molecular formula C5H5BrN2O and molecular weight 189.01 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H5BrN2O, 5-Bromo-4-methylpyrimidin-2-ol contains an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 5-Bromo-4-methylpyrimidin-2-ol 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 | C5H5BrN2O |
| Molecular Weight | 189.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1976 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 5-Bromo-3-methylpyrazin-2-ol (CAS 100047-56-1)
- 2-Bromo-5-hydrazinylpyrazine (CAS 1001050-24-3)
- (4-bromo-1H-pyrazol-1-yl)acetaldehyde (CAS 1007550-84-6)
- 6-Bromo-2-methyl-3(2H)-pyridazinone (CAS 1123169-25-4)
- 2-Bromo-5-hydrazinylpyrimidine (CAS 1174413-61-6)
- 3-Bromo-1-methylpyrazin-2(1H)-one (CAS 1187017-25-9)
- 2-Bromo-5-methoxypyrimidine (CAS 1209459-99-3)
- 2-Bromo-3-methoxypyrazine (CAS 1209905-41-8)
Recommended Standards
- 5-Bromo-4-hydroxy-6-methylpyrimidine (CAS 3438-52-6)
- 5-Bromo-4-pyrimidinemethanol (CAS 811450-15-4)
- 5-Bromo-2-methylpyrimidin-4(1H)-one (CAS 24614-15-1)
- 6-Amino-3-bromopyridin-2-ol (CAS 610279-06-6)
- 3-Cyano-3-fluoropiperidine hcl (CAS 1374657-66-5)
- 3-(Isobutanoy)phenylboronic acid (CAS 2377608-31-4)
- 4-(Difluoro(3,4,5-trifluorophenoxy)methyl)-4'-propyl-1,1'-biphenyl (CAS 337456-92-5)
- 3-Chloro-N-(2,6-diethylphenyl)propanamide (CAS 544423-20-3)
- [[(1a,3b,5z,7e)-25-[(Tetrahydro-2H-pyran-2-yl)oxy]-9,10-secocholesta-5,7,10(19)-triene-1,3-diyl]bis(oxy)]bis[(1,1-dimethylethyl)dimethylsilane]DISCONTINUED, offer D481483 (CAS 211866-07-8)
- 5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene (CAS 89057-44-3)
- 4-Bromo-7-chloroisoquinoline 2-oxide (CAS 953421-73-3)
- Trimethoxy(2''-methoxy-[2,2':2',2''-teroxetan]-2-yl)silane (CAS 132388-45-5)
- 1-Amino-4-(trifluoromethoxy)cyclohexane-1-carboxylic acid (CAS 2231675-03-7)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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