5-Formylselenophene-2-carboxylic acid CAS 13706-26-8
| CAS No. | 13706-26-8 |
| Molecular Formula | C6H4O3Se |
| Molecular Weight | 203.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 203.05 g/mol gives 5-Formylselenophene-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Formylselenophene-2-carboxylic acid (CAS 13706-26-8), molecular formula C6H4O3Se and molecular weight 203.05 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-Formylselenophene-2-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 203.05 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Formylselenophene-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H4O3Se |
| Molecular Weight | 203.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
Recommended Standards
- 1-Bromo-3-ethyl-5-fluorobenzene (CAS 1369947-95-4)
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- 2-Bromo-5-fluoro-1,3-dimethylbenzene (CAS 14659-58-6)
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- 1-(2-Fluorophenyl)-4-imino-1H-pyrazolo[3,4-d]pyrimidin-5(4H)-amine (CAS 1416341-42-8)
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- 2,2’-Diiodobiphenyl-4,4’-diamine (CAS 54391-31-0)
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- Semaglutide Impurity 5 (CAS 23406-82-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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