3-bromo-[1,2,4]triazolo[4,3-a]pyrimidine CAS 1263286-57-2
| CAS No. | 1263286-57-2 |
| Molecular Formula | C5H11BrN4 |
| Molecular Weight | 207.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-bromo-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1263286-57-2), molecular formula C5H11BrN4 and molecular weight 207.07 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-bromo-[1,2,4]triazolo[4,3-a]pyrimidine (C5H11BrN4) is characterized by a nitrile group, 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.
CATO manufactures 3-bromo-[1,2,4]triazolo[4,3-a]pyrimidine 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 | C5H11BrN4 |
| Molecular Weight | 207.07 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related bromo Standards
- 6-bromo-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1019023-12-1)
- 3-bromo-[1,2,4]triazolo[4,3-a]pyrazine (CAS 1159554-51-4)
- 5-bromo-1H-pyrazolo[3,4-b]pyrazine (CAS 1196152-90-5)
- ethyl 2-bromo-2-cyclopropylacetate (CAS 1200828-74-5)
- 2-bromo-1-(oxan-4-yl)ethan-1-one (CAS 141095-78-5)
- 2-bromo-1-tetrahydropyran-3-yl-ethanone (CAS 1461706-30-8)
- 1-bromo-3-(oxolan-2-yl)propan-2-one (CAS 1538694-77-7)
- 5-bromo-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 154695-81-5)
Recommended Standards
- 6-bromooxazolo[4,5-b]pyridine (CAS 1260863-86-2)
- Propargyl-PEG2-bromide (CAS 1287660-82-5)
- 1-(2-Bromoethyl)-3-methylimidazolidin-2-one (CAS 1247049-14-4)
- 3-amino-5-bromopyridine-2-carbaldehyde (CAS 1289168-19-9)
- Methyl 2-[4-(trifluoromethyl)phenyl]acetate (CAS 135325-18-7)
- Ethyl (2-chlorobenzoyl)acetate (CAS 19112-35-7)
- 1-(4-(Cyclopentyloxy)phenyl)ethan-1-one (CAS 857563-36-1)
- 2-Bromo-2-phenylacetophenone (CAS 1484-50-0)
- Methyl 3-hydroxy-2,2-dimethylcyclobutane-1-carboxylate (CAS 1392804-27-1)
- (2-(4-Bromophenyl)cyclopropyl)methanamine (CAS 1226233-35-7)
- Ethyl 6-vinylpicolinate (CAS 1383474-28-9)
- 2-Methyl-4-nitropyridine (CAS 13508-96-8)
- Prostaglandin E1 Alcohol (CAS 21562-57-2)
- Acetyl decapeptide-3 (CAS 935288-50-9)
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