6-Bromo-8-chloro-3-phenyl-[1,2,4]triazolo[4,3-a]pyrazine CAS 1646649-33-3
| CAS No. | 1646649-33-3 |
| Molecular Formula | C11H6BrClN4 |
| Molecular Weight | 309.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
6-Bromo-8-chloro-3-phenyl-[1,2,4]triazolo[4,3-a]pyrazine (CAS 1646649-33-3), molecular formula C11H6BrClN4 and molecular weight 309.55 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution, 6-Bromo-8-chloro-3-phenyl-[1,2,4]triazolo[4,3-a]pyrazine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 309.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 6-Bromo-8-chloro-3-phenyl-[1,2,4]triazolo[4,3-a]pyrazine 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 | C11H6BrClN4 |
| Molecular Weight | 309.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 4 |
Related Bromo Standards
- 5-Bromo-4-chloro-6-phenylfuro[2,3-d]pyrimidine (CAS 1073135-81-5)
- 8-Bromo-7-chloro-2-phenyl-[1,2,4]triazolo[1,5-c]pyrimidine (CAS 1254710-16-1)
- 5-Bromo-2-(2-chlorophenyl)-6-oxo-1,6-dihydropyridine-3-carbonitrile (CAS 1707568-52-2)
- 6-bromo-2H-chromene-3-sulfonyl chloride (CAS 1235440-25-1)
- 1-Bromo-2-chloro-5-isobutyl-4-nitrobenzene (CAS 1393441-78-5)
- 6-Bromo-2-methyl-2H-indazole-3-sulfonyl chloride (CAS 1363380-61-3)
- 4-Bromo-2-methyl-2H-indazole-3-sulfonyl chloride (CAS 1363380-87-3)
- 5-Bromo-2-methyl-2H-indazole-3-sulfonyl chloride (CAS 1363382-22-2)
Recommended Standards
- 3-(3-Bromophenyl)-6-chloro-1H-pyrazolo[3,4-d]pyrimidine (CAS 1386399-15-0)
- 2-(3-Bromophenyl)-6-chlorooxazolo[5,4-b]pyridine (CAS 1354749-05-5)
- 4-Chloro-6-(trifluoromethoxy)-5-(trifluoromethyl)nicotinic acid (CAS 1804702-07-5)
- 1286140-53-1 Diisopromine-d14 (CAS 1286140-53-1)
- Ethyl 1-(6-methyl-5,7-dioxo-4,5,6,7-tetrahydroisothiazolo[4,3-d]pyrimidine-3-carbonyl)piperidine-4-carboxylate (CAS 1251572-55-0)
- 3-(4-Ethoxyphenoxy)-2,2-dimethylpropan-1-amine (CAS 1225686-05-4)
- 2-(4-Methyl-1,4-diazepan-1-yl)aniline (CAS 1038220-80-2)
- (2-Chlorophenyl)(4-methylpyridin-3-yl)methanone (CAS 1187168-67-7)
- Avibactam Impurity 142 (CAS CATO-C4X-1348142)
- (R)-2-Aminopropanehydrazide (CAS 769064-38-2)
- 2,4,6-Trifluorophenylboronic Acid (CAS 182482-25-3)
- (4S,4'S)-2,2'-(Cycloheptane-1,1-diyl)bis(4-benzyl-4,5-dihydrooxazole) (CAS 2757082-25-8)
- 1-(4-Methoxyphenyl)-1-phenylethanol (CAS 94001-65-7)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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