(3,3-difluorocyclopentyl)methanesulfonyl chloride CAS 1691738-59-6
| CAS No. | 1691738-59-6 |
| Molecular Formula | C6H9ClF2O2S |
| Molecular Weight | 218.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (3,3-difluorocyclopentyl)methanesulfonyl 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.
(3,3-difluorocyclopentyl)methanesulfonyl chloride (CAS 1691738-59-6), molecular formula C6H9ClF2O2S and molecular weight 218.65 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (3,3-difluorocyclopentyl)methanesulfonyl chloride (C6H9ClF2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 218.65 g/mol, it falls into the medium-molecular-weight range. 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 | C6H9ClF2O2S |
| Molecular Weight | 218.65 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-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)
- 3,3-Difluorocyclopentyl benzoate (CAS 883732-01-2)
- 2-(2,2-Difluorocyclopentyl)ethyl methanesulfonate (CAS 2126178-07-0)
- N-((3,3-difluorocyclopentyl)methyl)thietan-3-amine (CAS 1864612-25-8)
- 2-(2,2-Difluorocyclopentyl)ethane-1-sulfonyl chloride (CAS 1780479-64-2)
Recommended Standards
- (2-Chloro-4-(3-fluoropropoxy)phenyl)methanol (CAS 1562412-71-8)
- 3-Cyclopropyl-2,2-difluoropropane-1-sulfonyl chloride (CAS 1783608-33-2)
- 4,4-Difluorocyclohexane-1-sulfonyl chloride (CAS 1196154-77-4)
- [1-(Difluoromethyl)cyclobutyl]methanesulfonyl chloride (CAS 1784574-90-8)
- 3-[4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]propyl acetate (CAS 1883793-85-8)
- 1-Benzyl-5-propyl-1h-1,2,3-triazole-4-carboxylic acid (CAS 1266820-35-2)
- N-(4-Chlorobutyl)-N-methylcarbamyl chloride (CAS 302912-48-7)
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- 1-(3-Methylthiophen-2-yl)ethan-1-one (CAS 13679-72-6)
- 2-methyl-2H-indazole-5-carboxylic acid (CAS 1197943-94-4)
- 4-(((Furan-2-ylmethyl)amino)methyl)-2,6-dimethoxyphenol hydrochloride (CAS 1135231-29-6)
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- Tau Peptide (337-368) (Repeat 4 Domain) trifluoroacetate salt (CAS 330456-27-4)
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