7-Bromo-[1,2,4]triazolo[1,5-a]pyridine-2-sulfonyl chloride CAS 1315365-75-3
| CAS No. | 1315365-75-3 |
| Molecular Formula | C6H3BrClN3O2S |
| Molecular Weight | 296.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Bromo-[1,2,4]triazolo[1,5-a]pyridine-2-sulfonyl chloride (CAS 1315365-75-3), molecular formula C6H3BrClN3O2S and molecular weight 296.53 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, 7-Bromo-[1,2,4]triazolo[1,5-a]pyridine-2-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 296.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C6H3BrClN3O2S |
| Molecular Weight | 296.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 5-Bromo-1H-pyrazolo[3,4-b]pyridine-3-sulfonyl chloride (CAS 1044941-69-6)
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- 4-Bromo-2-cyano-6-hydroxybenzene-1-sulfonyl chloride (CAS 1805524-67-7)
- 4-Bromo-5-chloro-2-fluoro-N-methoxy-N-methylbenzamide (CAS 1820740-68-8)
- 4-Bromo-2-chloro-6-fluoro-N-methoxy-N-methylbenzamide (CAS 1822680-28-3)
- 2-(5-Bromo-2-chloro-4-fluorophenoxy)-N-methylacetamide (CAS 2151826-92-3)
- Ethyl (2-bromo-6-chloro-4-fluorophenyl)carbamate (CAS 887578-48-5)
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Recommended Standards
- 1-Tetradecyl-1,4-diazepane (CAS 1240574-19-9)
- 2-(3-Chloro-4-fluorophenyl)-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine (CAS 1338697-45-2)
- 2-Methyl-1-tetradecylpiperazine (CAS 1240565-78-9)
- 2-Chloro-1-iodo-4-isopropoxybenzene (CAS 1369830-17-0)
- Ammonium 2-hydroxyethanesulfonate (CAS 57267-78-4)
- Dutasteride Impurity 21 (CAS 2965-07-3)
- 1H-benzimidazole, 2-(iodomethyl)-1-methyl- (CAS 1058225-63-0)
- Methyl 4-amino-2,6-bis(trifluoromethyl)benzoate (CAS 1805555-22-9)
- Florfenicol Impurity 70 (CAS 126428-97-5)
- 1,2,3-thiadiazole-4-carboxamide (CAS 4100-20-3)
- 3,4-Difluoro-1,1'-biphenyl (CAS 67277-33-2)
- (S)-2-(Pyrrolidin-2-yl)pyridine dihydrochloride (CAS 2097073-17-9)
- 2-(4-Bromophenyl)-3-iodoimidazo[1,2-a]pyridine (CAS 1027074-50-5)
- Semaglutide Impurity 21(HO-Ste-L-γGlu-AEEA-AEEA-OH) (CAS 1335440-44-2)
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