6-Bromo-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine CAS 89581-42-0
| CAS No. | 89581-42-0 |
| Molecular Formula | C6H5BrN4 |
| Molecular Weight | 213.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
6-Bromo-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 89581-42-0) is a high-purity analytical reference standard with the molecular formula C6H5BrN4 and a molecular weight of 213.03 g/mol.
Based on its molecular formula C6H5BrN4, 6-Bromo-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine contains a nitrile group, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H5BrN4 |
| Molecular Weight | 213.03 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Bromo Standards
- 7-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3-amine (CAS 1019918-41-2)
- 6-Bromo-7-methyloxazolo[5,4-b]pyridine (CAS 1023817-91-5)
- 6-Bromo-5-methyloxazolo[5,4-b]pyridine (CAS 1023817-93-7)
- 5-Bromo-3-methyl-1H-pyrazolo[3,4-b]pyrazine (CAS 1086064-35-8)
- 4-Bromo-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1086064-49-4)
- 5-Bromo-1H-pyrrolo[2,3-b]pyridine 7-oxide (CAS 1092580-91-0)
- 6-Bromo-5-methoxypicolinonitrile (CAS 1112851-37-2)
- 8-Bromo-[1,2,4]-triazolo[1,5-a]pyridin-2-amine (CAS 1124382-72-4)
Recommended Standards
- 6-Bromo-3-methoxypicolinonitrile (CAS 393813-61-1)
- 6-Bromo-7-methyl-7h-purine (CAS 376628-24-9)
- 6-Bromo-2-methyloxazolo[4,5-b]pyridine (CAS 494747-09-0)
- 6-Bromo-8-methyltetrazolo[1,5-a]pyridine (CAS 2763964-74-3)
- 3-(Aminomethyl)-6-methoxy-1,2,3,4-tetrahydroquinolin-4-ol (CAS 1706449-77-5)
- 3-Cyclopropoxybenzonitrile (CAS 223690-04-8)
- 4-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)-N-((dimethylamino)methylene)benzamide (CAS 1164512-96-2)
- 1-Cyclopropylethylamine (CAS 1621-24-5)
- Sitafloxacin Impurity 29 (CAS CATO-C4X-115529)
- 2-(1,3-Dioxolan-2-yl)-1-(2-(trifluoromethyl)phenyl)ethan-1-one (CAS 1263365-56-5)
- 2-(Difluoromethoxy)-3-hydroxyquinoline (CAS 1261770-16-4)
- N-Isobutylpiperidine-4-carboxamide dihydrochloride (CAS 2138217-14-6)
- 5-Amino-2-((pyridin-2-ylmethyl)amino)pyrimidin-4(1H)-one (CAS 77961-36-5)
- D-Ala21-Tirzepatide (CAS CATO-CPTD788913)
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