2-Bromo-5-(pyridin-4-yl)-1,3,4-thiadiazole CAS 16439-93-3
| CAS No. | 16439-93-3 |
| Molecular Formula | C7H4BrN3S |
| Molecular Weight | 242.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-5-(pyridin-4-yl)-1,3,4-thiadiazole (CAS 16439-93-3), molecular formula C7H4BrN3S and molecular weight 242.10 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, bromine substitution, an aromatic ring system, 2-Bromo-5-(pyridin-4-yl)-1,3,4-thiadiazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 242.10 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.
As a certified reference material (CRM), 2-Bromo-5-(pyridin-4-yl)-1,3,4-thiadiazole 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.
Physical & Chemical Properties
| Molecular Formula | C7H4BrN3S |
| Molecular Weight | 242.10 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-2-(pyrimidin-5-yl)thiazole (CAS 1159815-56-1)
- 4-Bromo-2-(pyrazin-2-yl)thiazole (CAS 1539518-99-4)
- 2-Bromo-5-(pyridin-3-yl)-1,3,4-thiadiazole (CAS 412923-47-8)
- 2-(4-Bromo-3-fluorophenyl)-2-methylpropanenitrile (CAS 1027087-75-7)
- 4-(4-Bromo-2-fluorophenyl)butanenitrile (CAS 1057672-39-5)
- 5-Bromo-3-ethyl-7-fluoro-1H-indole (CAS 1360891-72-0)
- 3-(4-Bromo-2-fluorobenzylidene)azetidine (CAS 1537465-98-7)
- 2-(5-bromo-2-fluorophenyl)-2-methylpropanenitrile (CAS 913719-91-2)
Recommended Standards
- 2-(5-Bromopyrimidin-2-yl)thiazole (CAS 1563530-72-2)
- 1-(3-Bromopropyl)-4,4-difluoropiperidine (CAS 1782084-16-5)
- 2-(Difluoromethyl)-4-nitro-6-(trifluoromethyl)pyridine (CAS 1805923-75-4)
- 7-(But-3-en-1-yl)-2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine (CAS 1507350-64-2)
- 3-(4-(n-Propylsulfamoyl)phenyl)acrylic acid (CAS 926248-32-0)
- 2-Bromo-1-(3-bromophenyl)ethanol (CAS 194721-56-7)
- 4-(Phenylethynyl)aniline (CAS 1849-25-8)
- (Prop-2-en-1-yl)[(pyridin-3-yl)methyl]amine hydrochloride (CAS 1158342-39-2)
- 6-Methyl-1-phenyl-1H-indazole (CAS 838820-88-5)
- 2-Fluoro-4-formylbenzoic acid (CAS 604000-97-7)
- 2-(Isopropyl(2-methylbenzyl)amino)acetic acid (CAS 1181620-73-4)
- 3-(5-Amino-2-(hydroxymethyl)-1H-benzo[d]imidazol-1-yl)propan-1-ol dihydrochloride (CAS 1185030-97-0)
- Methyl 5-bromo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylate (CAS 2131191-71-2)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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