5,6-Difluoro-4,7-diiodo-2,1,3-benzothiadiazole CAS 1293389-29-3
| CAS No. | 1293389-29-3 |
| Molecular Formula | C6F2I2N2S |
| Molecular Weight | 423.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 423.95 g/mol gives 5,6-Difluoro-4,7-diiodo-2,1,3-benzothiadiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5,6-Difluoro-4,7-diiodo-2,1,3-benzothiadiazole (CAS 1293389-29-3), molecular formula C6F2I2N2S and molecular weight 423.95 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, sulfur-containing functionality, fluorine/iodine substitution, an aromatic ring system, 5,6-Difluoro-4,7-diiodo-2,1,3-benzothiadiazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 423.95 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6F2I2N2S |
| Molecular Weight | 423.95 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/I-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Difluoro Standards
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Recommended Standards
- Ethyl 4-(4-benzylpiperazin-1-yl)-7-chloro-8-methylquinoline-3-carboxylate (CAS 457937-15-4)
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- 4-Chloro-N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-N-ethylbenzenesulfonamide (CAS 1325305-88-1)
- Bis(1,10-phenanthroline)copper(2+) (CAS 15823-71-9)
- ethyl 2-(cyanomethyl)-4-methylquinoline-3-carboxylate (CAS 929974-87-8)
- 4-Chloro-2-ethyl-5-(furan-2-ylmethoxy)pyridazin-3(2H)-one (CAS 106331-25-3)
- 2-Bromo-5-(tert-butyl)-4-chlorobenzonitrile (CAS 2416992-20-4)
- 2-(Benzo[c][1,2,5]oxadiazol-5-yl)acetaldehyde (CAS 1279109-01-1)
- Methyl 2-(((tert-butoxycarbonyl)amino)methyl)-6-formylisonicotinate (CAS 1393555-39-9)
- 3-Chloro-5-hydroxy-4-iodobenzamide (CAS 2385790-40-7)
- 1,1'-(4-Amino-1,3-phenylene)bis(pyrrolidin-2-one) (CAS 1170504-43-4)
- 2-chloro-7-fluoro-pyrido[1,2-a]pyrimidin-4-one (CAS 1449598-86-0)
- 1-(4-(Tert-butyl)phenoxy)-3-morpholinopropan-2-ol hydrochloride (CAS 35151-90-7)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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