Selenophene-2-carboxylic acid CAS 22968-45-2
| CAS No. | 22968-45-2 |
| Molecular Formula | C5H4O2Se |
| Molecular Weight | 175.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 175.04 g/mol gives Selenophene-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Selenophene-2-carboxylic acid (CAS 22968-45-2) is a high-purity analytical reference standard with the molecular formula C5H4O2Se and a molecular weight of 175.04 g/mol.
Based on its molecular formula C5H4O2Se, Selenophene-2-carboxylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 175.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C5H4O2Se |
| Molecular Weight | 175.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
Related Selenophene Standards
- Selenophene-3-carboxylic acid (CAS 35577-09-4)
- Selenophene-3,4-dicarbonitrile (CAS 18853-44-6)
- Selenophene-2,5-dicarbaldehyde (CAS 13706-04-2)
- Selenophene-3-carbaldehyde (CAS 18168-59-7)
- Selenophene-2-carbaldehyde (CAS 25109-26-6)
- Selenophene-2-carbonyl chloride (CAS 39082-07-0)
- Selenophene-2-carbonitrile (CAS 7651-60-7)
- 1,1'-(Selenophene-2,4-diyl)diethanone (CAS 113495-22-0)
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