| CAS No. | 493-08-3 |
| Molecular Formula | C9H10O |
| Molecular Weight | 134.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 134.18 g/mol gives 3,4-Dihydro-2H-1-benzopyran distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3,4-Dihydro-2H-1-benzopyran (CAS 493-08-3), a certified reference material (molecular formula C9H10O, MW 134.18 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H10O, 3,4-Dihydro-2H-1-benzopyran contains a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 134.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 3,4-Dihydro-2H-1-benzopyran 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.
| Molecular Formula | C9H10O |
| Molecular Weight | 134.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |