2-(Cyanomethyl)benzo[d]oxazole-5-sulfonyl chloride CAS 1806280-70-5
| CAS No. | 1806280-70-5 |
| Molecular Formula | C9H5ClN2O3S |
| Molecular Weight | 256.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 256.67 g/mol gives 2-(Cyanomethyl)benzo[d]oxazole-5-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(Cyanomethyl)benzo[d]oxazole-5-sulfonyl chloride (CAS 1806280-70-5) is a high-purity analytical reference standard with the molecular formula C9H5ClN2O3S and a molecular weight of 256.67 g/mol.
2-(Cyanomethyl)benzo[d]oxazole-5-sulfonyl chloride (C9H5ClN2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 2-(Cyanomethyl)benzo[d]oxazole-5-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 | C9H5ClN2O3S |
| Molecular Weight | 256.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cyanomethyl Standards
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Recommended Standards
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- 1-Amino-4-methylheptan-3-ol (CAS 126678-99-7)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
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