5-Bromo-6-(2-oxo-2H-chromen-3-yl)imidazo[2,1-b][1,3,4]thiadiazole-2-sulfonamide CAS 183999-74-8
| CAS No. | 183999-74-8 |
| Molecular Formula | C13H7BrN4O4S2 |
| Molecular Weight | 427.25 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.
5-Bromo-6-(2-oxo-2H-chromen-3-yl)imidazo[2,1-b][1,3,4]thiadiazole-2-sulfonamide (CAS 183999-74-8), molecular formula C13H7BrN4O4S2 and molecular weight 427.25 g/mol, is a CATO reference standard with documented purity and traceability.
5-Bromo-6-(2-oxo-2H-chromen-3-yl)imidazo[2,1-b][1,3,4]thiadiazole-2-sulfonamide (C13H7BrN4O4S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-Bromo-6-(2-oxo-2H-chromen-3-yl)imidazo[2,1-b][1,3,4]thiadiazole-2-sulfonamide 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 | C13H7BrN4O4S2 |
| Molecular Weight | 427.25 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Bromo Standards
- Ethyl 2-Bromo-2-(triphenylphosphoranylidene)acetate (CAS 803-14-5)
- 4-Bromo-1-methyl-2-phenyl-5-{[3-(trifluoromethyl)phenoxy]methyl}-2,3-dihydro-1H-pyrazol-3-one (CAS 937604-60-9)
- Benzyl 2-(5-bromo-1H-indole-3-carbonyl)pyrrolidine-1-carboxylate (CAS 331842-86-5)
- 6-Bromo-N,N-bis(4-methoxybenzyl)-4-methylpyridin-2-amine (CAS 1615656-13-7)
- Bromo(hexyl)triphenyl-l5-phosphane (CAS 39521-32-9)
- 6-Bromo-1,1,1,2,2,3,3-heptafluoro-4,4-bis(trifluoromethyl)hexane (CAS 128454-91-1)
- 1-Bromo-1H,1H,2H,2H-perfluorooctane (CAS 161583-34-2)
- 2,2'-(5-Bromo-2-fluoro-1,3-phenylene)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (CAS 942069-49-0)
Recommended Standards
- Ipfencarbazone (CAS 212201-70-2)
- Benzyl L-prolinate (CAS 41324-66-7)
- N-(3,5-dichlorophenyl)-3-(2-fluoro-4-nitrophenoxy)thiophene-2-carboxamide (CAS 303152-54-7)
- 4-Chloro-N-[2-(6-chloro-4-trifluoromethyl-pyridine-2-sulfonyl)-ethyl]-benzamide (CAS 1311280-14-4)
- 4-Ethoxy-N-(5-phenyl-1,3,4-oxadiazol-2-yl)benzamide (CAS 865287-56-5)
- n-(3-Cyanothiophen-2-yl)-2-methoxyacetamide (CAS 1252316-72-5)
- Ioxaglic Acid (CAS 59017-64-0)
- N-(4-{[4-(2-Pyrimidinyl)piperazino]sulfonyl}phenyl)acetamide (CAS 545383-46-8)
- 2-{[3-cyano-6-methyl-4-(trifluoromethyl)pyridin-2-yl]sulfanyl}-N-[4-(methylsulfanyl)phenyl]acetamide (CAS 674804-90-1)
- Drotaverine Impurity 29 (CAS CATO-C4X-243529)
- 9(Z),11(E),13(Z)-Octadecatrienoic acid (CAS 544-72-9)
- 1-Amino-2-bromo-4-((2-hydroxypropyl)amino)anthracene-9,10-dione (CAS 61467-90-1)
- 2-(4-Chlorophenyl)-2-(6-(phenylthio)pyridazin-3-yl)acetonitrile (CAS 303997-39-9)
- Eledoisin Related Peptide (CAS 2990-43-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com