But-3-enoyl chloride CAS 1470-91-3
| CAS No. | 1470-91-3 |
| Molecular Formula | C4H5ClO |
| Molecular Weight | 104.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 104.53 g/mol gives But-3-enoyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
But-3-enoyl chloride (CAS 1470-91-3) is a high-purity analytical reference standard with the molecular formula C4H5ClO and a molecular weight of 104.53 g/mol.
Based on its molecular formula C4H5ClO, But-3-enoyl chloride contains 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 104.53 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), But-3-enoyl 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 | C4H5ClO |
| Molecular Weight | 104.53 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 | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
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- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
Why CATO?
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