4,7-Bis(2,3-dihydrothieno[3,4-b]-1,4-dioxin-5-yl)-2,1,3-benzothiadiazole CAS 240823-06-7
| CAS No. | 240823-06-7 |
| Molecular Formula | C18H12N2O4S3 |
| Molecular Weight | 416.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4,7-Bis(2,3-dihydrothieno[3,4-b]-1,4-dioxin-5-yl)-2,1,3-benzothiadiazole (CAS 240823-06-7) is a high-purity analytical reference standard with the molecular formula C18H12N2O4S3 and a molecular weight of 416.49 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 4,7-Bis(2,3-dihydrothieno[3,4-b]-1,4-dioxin-5-yl)-2,1,3-benzothiadiazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 416.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C18H12N2O4S3 |
| Molecular Weight | 416.49 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Related Bis Standards
- 5-((4-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)quinolin-6-yl)methylene)thiazolidine-2,4-dione (CAS 1119898-47-3)
- 2,7-Bis(2,3-dihydrothieno[3,4-b]-1,4-dioxin-5-yl)-9H-carbazole (CAS 2247347-75-5)
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- 2-Phenyl-5,7-dihydrothieno[3,4-d]pyrimidin-4-ol (CAS 5719-24-4)
- 1-(6,7-Dihydrothieno[3,2-c]pyridin-5(4H)-yl)-2-(3-(4-fluorophenyl)-1H-pyrazol-1-yl)ethanone (CAS 1252551-10-2)
- 4,7-Bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-5,6-dinitrobenzo[c][1,2,5]thiadiazole (CAS 1003593-63-2)
- 3-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-ylsulfonyl)benzoic acid (CAS 926230-39-9)
Recommended Standards
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- 2-Phenyl-4-(p-tolyloxy)-5-tosylpyrimidine (CAS 478080-86-3)
- Ethyl (4-(2-(4-(4-acetylphenyl)piperazin-1-yl)-2-oxoethyl)thiazol-2-yl)carbamate (CAS 946285-04-7)
- (2R,4S)-2-methyltetrahydropyran-4-ol (CAS 82110-17-6)
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- N-Butyl-3-(1-tosylpyrrolidin-2-yl)pyridin-2-amine (CAS 1352540-70-5)
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- 2,4-Dihydroxy-3-methoxybenzaldehyde (CAS 58922-29-5)
- 1-Cyclooctylethan-1-amine (CAS 1532242-59-3)
- 3X Flag Peptide trifluoroacetate salt (CAS 402750-12-3)
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