3-Fluoro-4,6-dihydrothieno[3,4-b]thiophene-2-carboxylic acid CAS 1160823-72-2
| CAS No. | 1160823-72-2 |
| Molecular Formula | C7H5FO2S2 |
| Molecular Weight | 204.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Fluoro-4,6-dihydrothieno[3,4-b]thiophene-2-carboxylic acid (C7H5FO2S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 204.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Fluoro-4,6-dihydrothieno[3,4-b]thiophene-2-carboxylic acid (CAS 1160823-72-2), molecular formula C7H5FO2S2 and molecular weight 204.24 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C7H5FO2S2 |
| Molecular Weight | 204.24 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
| Sulfur Atoms | 2 |
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- 3-Morpholinopyrazine-2-carbonitrile (CAS 67130-86-3)
- Isoquinoline-6,7-diol hydrobromide (CAS 113884-76-7)
- 4-(Benzyloxy)-6-methylpyridine-2-sulfonyl chloride (CAS 1393582-94-9)
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- 5-Bromo-2-chloro-4-fluoroaniline (CAS 305795-89-5)
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