Methyl 5-(chlorosulfonyl)furan-2-carboxylate CAS 69816-05-3
| CAS No. | 69816-05-3 |
| Molecular Formula | C6H5ClO5S |
| Molecular Weight | 224.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 5-(chlorosulfonyl)furan-2-carboxylate (CAS 69816-05-3) is a high-purity analytical reference standard with the molecular formula C6H5ClO5S and a molecular weight of 224.62 g/mol.
The molecular framework of Methyl 5-(chlorosulfonyl)furan-2-carboxylate (C6H5ClO5S) is characterized by a carbohydrate-derived structure, a sulfone group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C6H5ClO5S |
| Molecular Weight | 224.62 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 2-(chlorosulfonyl)furan-3-carboxylate (CAS 1011241-51-2)
- 4-(Chlorosulfonyl)-5-methylfuran-2-carboxylic acid (CAS 1016760-03-4)
- 4-(chlorosulfonyl)-5-methyl-1H-pyrazole-3-carboxylic acid (CAS 1486497-42-0)
- Methyl 5-(Chlorosulfonyl)-1H-pyrazole-4-carboxylate (CAS 1532000-54-6)
- 3-(chlorosulfonyl)propane-1-sulfonyl fluoride (CAS 1803571-16-5)
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Recommended Standards
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