| CAS No. | 1007128-71-3 |
| Molecular Formula | C5HBrClN3S |
| Molecular Weight | 250.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
7-Bromo-4-chloro-[1,2,5]thiadiazolo[3,4-c]pyridine (CAS 1007128-71-3), molecular formula C5HBrClN3S and molecular weight 250.50 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5HBrClN3S, 7-Bromo-4-chloro-[1,2,5]thiadiazolo[3,4-c]pyridine contains a nitrile group, sulfur-containing functionality, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 250.50 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Bromo-4-chloro-[1,2,5]thiadiazolo[3,4-c]pyridine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C5HBrClN3S |
| Molecular Weight | 250.50 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 | 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.) | 1988 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |