3-(5-Bromothiophen-2-yl)-6-chloropyridazine CAS 58059-34-0
| CAS No. | 58059-34-0 |
| Molecular Formula | C8H4BrClN2S |
| Molecular Weight | 275.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-(5-Bromothiophen-2-yl)-6-chloropyridazine (CAS 58059-34-0), molecular formula C8H4BrClN2S and molecular weight 275.55 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine/bromine substitution, 3-(5-Bromothiophen-2-yl)-6-chloropyridazine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 275.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H4BrClN2S |
| Molecular Weight | 275.55 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.) | 1973 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromothiophen Standards
- 2-(4-Bromothiophen-2-yl)-4-chloropyrimidine (CAS 1155598-33-6)
- 2-(5-Bromothiophen-2-yl)-4-chloropyrimidine (CAS 1155599-15-7)
- 4-(3-bromothiophen-2-yl)-2-chloropyrimidine (CAS 1513145-66-8)
- (5-Bromothiophen-2-yl)methanesulfonyl chloride (CAS 1184785-09-8)
- (3-Bromothiophen-2-yl)methanesulfonyl chloride (CAS 1247995-46-5)
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- 1-((5-Bromothiophen-2-yl)methyl)piperidin-4-amine (CAS 1039953-47-3)
Recommended Standards
- 2-Bromo-5-chloro-1-benzothiophene-3-carbaldehyde (CAS 680212-97-9)
- 4-Bromobenzo[b]thiophene-2-carbonyl chloride (CAS 93104-01-9)
- 2-Bromo-5-(4-chlorophenyl)-1,3,4-thiadiazole, 97% (CAS 57709-58-7)
- 5-Bromo-1-benzothiophene-2-carbonyl chloride (CAS 7312-14-3)
- Ethyl 6-(chloromethyl)-4-(2,3-dimethoxyphenyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 380589-29-7)
- 1-((1-(Tert-butoxycarbonyl)piperidin-4-yl)methyl)-1H-pyrazole-4-carboxylic acid (CAS 1211518-74-9)
- 4-(4-Phenoxyphenyl)-1,3-thiazol-2-amine (CAS 105512-82-1)
- 5-(Isothiocyanatomethyl)-2-methyl-1h-indole (CAS 1105193-68-7)
- Ethyl 4-nitrobenzene-1-carboximidate hydrochloride (CAS 40546-45-0)
- 3-Benzoylthiazolidine-4-carbonyl chloride 1,1-dioxide (CAS 1105195-19-4)
- 3-Phenylquinolin-4-ol (CAS 17052-37-8)
- Betahistine Dihydrochloride (CAS 5579-84-0)
- Cloxacillin EP Impurity B (CAS 1642559-64-5)
- Semaglutide impurity 76 (CAS CATO-C4X-222676)
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