2-(2,2-Difluorocyclopentyl)ethane-1-sulfonyl chloride CAS 1780479-64-2
| CAS No. | 1780479-64-2 |
| Molecular Formula | C7H11ClF2O2S |
| Molecular Weight | 232.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(2,2-Difluorocyclopentyl)ethane-1-sulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
2-(2,2-Difluorocyclopentyl)ethane-1-sulfonyl chloride (CAS 1780479-64-2), molecular formula C7H11ClF2O2S and molecular weight 232.68 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H11ClF2O2S, 2-(2,2-Difluorocyclopentyl)ethane-1-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 232.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H11ClF2O2S |
| Molecular Weight | 232.68 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Difluorocyclopentyl Standards
- 2-(2,2-Difluorocyclopentyl)ethyl methanesulfonate (CAS 2126178-07-0)
- 3,3-Difluorocyclopentyl benzoate (CAS 883732-01-2)
- (3,3-difluorocyclopentyl)methanesulfonyl chloride (CAS 1691738-59-6)
- (2,2-Difluorocyclopentyl)methanesulfonyl chloride (CAS 1785345-03-0)
- [(1S)-3,3-difluorocyclopentyl]methanesulfonyl chloride (CAS 2381424-50-4)
- (3,3-difluorocyclopentyl)methyl methanesulfonate (CAS 1644679-78-6)
- (2,2-difluorocyclopentyl)methyl methanesulfonate (CAS 1820706-46-4)
- Benzyl (2,2-difluorocyclopentyl)carbamate (CAS 1934962-92-1)
Recommended Standards
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- Methyl 3-(allyloxy)-5-chlorothiophene-2-carboxylate (CAS 1774902-40-7)
- 2-Methyl-2,3-dihydro-1-benzofuran-7-sulfonyl chloride (CAS 1781955-21-2)
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- 4-Bromo-5-(2,4-difluorophenyl)-1,3-dimethyl-1H-pyrazole (CAS 1221502-74-4)
- Cesium sulfate (CAS 10294-54-9)
- Chloromethyl-(2-chlorophenoxy)dimethylsilane (CAS 88127-54-2)
- ((1R,2S)-2-(Trifluoromethyl)cyclopropyl)methanol (CAS 1416432-55-7)
- (1-Methyl-1h-imidazol-2-yl)methanesulfonyl chloride (CAS 1420847-32-0)
- (2-Chloroethyl)phosphonic dichloride (CAS 690-12-0)
- 1H,4H,6H,7H-pyrano[4,3-c]pyrazole hydrochloride (CAS 1864016-56-7)
- 81988-89-8 UH11FDQ454 Ramoplanin A(sub 3) Ramoplanin A3 (S)-2-(3-Chloro-4-hydroxyphenyl)-N-(N(sup 2)-((2Z,4Z)-8-methyl-2,4-nonadienoyl)-(S)-asparaginyl-(2S,3S)-3-hydroxyasparaginyl-(R)-2-(p-hydroxyphenyl)glycyl-(R)-ornithyl-(2R,3R)-allothreonyl-2-(p-hydroxyphenyl)glycyl-2-(p-hydroxyphenyl)glycyl-(2S,3S)-allothreonyl-(S)-phenylalanyl-(R)-ornithyl-(S)-2-(p-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycyl-(2R,3R)-allothreonyl-(S)-2-(p-hydroxyphenyl)glycylglycyl-(S)-leucyl-(R)-alanyl)glycine psi1-lactone Ramoplanin A 1 (peptide moiety), 1-(N(sup 2)-methyl-1-oxo-2,4-nonadienyl)-L-asparagine)-11-(L-2-(4-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycine)-, (Z,Z)- UNII-UH11FDQ454 (CAS 81988-89-8)
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