pent-4-yne-1-sulfonyl chloride CAS 67448-64-0
| CAS No. | 67448-64-0 |
| Molecular Formula | C5H7ClO2S |
| Molecular Weight | 166.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of pent-4-yne-1-sulfonyl chloride is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies pent-4-yne-1-sulfonyl chloride (CAS 67448-64-0), a certified reference material (molecular formula C5H7ClO2S, MW 166.63 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H7ClO2S, pent-4-yne-1-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 166.63 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.
As a certified reference material (CRM), pent-4-yne-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.
Physical & Chemical Properties
| Molecular Formula | C5H7ClO2S |
| Molecular Weight | 166.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 2.0 |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related pent Standards
- 1-(Pent-2-yn-1-yl)cyclobutanecarboxylic acid (CAS 89056-28-0)
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- (1-(Pent-4-en-1-yl)-1H-pyrazol-4-yl)methanamine (CAS 1344073-35-3)
- (Z)-6-(Pent-3-en-1-yl)tetrahydro-2H-pyran-2-one (CAS 1062323-04-9)
- (E)-6-(Pent-2-en-1-yl)tetrahydro-2H-pyran-2-one (CAS 25524-96-3)
- (E)-6-(Pent-3-en-1-yl)tetrahydro-2H-pyran-2-one (CAS 75253-68-8)
- 2-(Pent-2-yn-1-yloxy)tetrahydro-2H-pyran (CAS 6261-21-8)
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Recommended Standards
- 4-chlorothiophene-3-carboxylic acid (CAS 59337-81-4)
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- 1-Chloro-4-(2-methoxyethoxy)butane (CAS 1248678-30-9)
- CAS 2260670-11-7 (CAS 2260670-11-7)
- tert-Butyl (2-amino-3-bromophenyl)carbamate (CAS 954238-73-4)
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- 2-(2-Bromothiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 942070-12-4)
- thiolan-2-imine (CAS 6539-14-6)
- 7-Bromo-5-fluoro-1H-pyrrolo[2,3-c]pyridine (CAS 1639977-12-0)
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