8-bromo-5-chloro-[1,2,4]triazolo[4,3-c]pyrimidine CAS 2374137-47-8
| CAS No. | 2374137-47-8 |
| Molecular Formula | C5H2BrClN4 |
| Molecular Weight | 233.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 233.45 g/mol gives 8-bromo-5-chloro-[1,2,4]triazolo[4,3-c]pyrimidine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
8-bromo-5-chloro-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 2374137-47-8), molecular formula C5H2BrClN4 and molecular weight 233.45 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H2BrClN4, 8-bromo-5-chloro-[1,2,4]triazolo[4,3-c]pyrimidine contains a nitrile group, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 233.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C5H2BrClN4 |
| Molecular Weight | 233.45 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 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 |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 4 |
Related bromo Standards
- 5-Bromo-2-chlorooxazolo[4,5-b]pyridine (CAS 1211533-63-9)
- 6-Bromo-4-chlorofuro[3,2-d]pyrimidine (CAS 1211536-97-8)
- 7-Bromo-4-chlorofuro[3,2-d]pyrimidine (CAS 1211595-48-0)
- 6-Bromo-8-chloro-[1,2,4]triazolo[4,3-a]pyrazine (CAS 1334135-75-9)
- 8-Bromo-5-chloro-[1,2,4]triazolo[1,5-c]pyrimidine (CAS 1367774-82-0)
- 2-Bromo-6-chloro-3-hydroxyisonicotinonitrile (CAS 1445968-08-0)
- 6-Bromo-2-chloro-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 1779766-69-6)
- 5-Bromo-4-chloroimidazo[5,1-f][1,2,4]triazine (CAS 1780012-72-7)
Recommended Standards
- 6-Bromo-8-chloro-[1,2,4]triazolo[1,5-a]pyrazine (CAS 2092679-78-0)
- 8-Bromo-6-chloro-[1,2,4]triazolo[1,5-b]pyridazine (CAS 2735688-86-3)
- 3-Bromo-7-chloro-1H-pyrazolo[4,3-d]pyrimidine (CAS 68510-70-3)
- 8-Bromo-6-chloro-9H-purine (CAS 914220-07-8)
- 5-(tert-Butyl)oxazole-2-carbaldehyde (CAS 252662-41-2)
- Me-triacetyl-β-D-glucopyranuronate-Ph-CH2OH-Fmoc (CAS 894096-02-7)
- 2544-06-1 Propanoic acid, 3-methoxy- 3-Methoxypropanoic acid 3-Methoxypropionic acid (CAS 2544-06-1)
- Benzyl 3-(((2-aminoethyl)(isopropyl)amino)methyl)piperidine-1-carboxylate (CAS 1353972-78-7)
- (S)-1-(tert-butoxycarbonyl)-5,5-dimethylpiperidine-3-carboxylic acid (CAS 2387561-96-6)
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- (1S)-1-(3-Methylphenyl)ethan-1-ol (CAS 51154-53-1)
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