| CAS No. | 3967-55-3 |
| Molecular Formula | C3H2Cl2O3 |
| Molecular Weight | 156.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 156.95 g/mol gives 4,5-Dichloro-1,3-dioxolan-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4,5-Dichloro-1,3-dioxolan-2-one (CAS 3967-55-3), molecular formula C3H2Cl2O3 and molecular weight 156.95 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4,5-Dichloro-1,3-dioxolan-2-one (C3H2Cl2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 156.95 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.
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.
CATO manufactures 4,5-Dichloro-1,3-dioxolan-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C3H2Cl2O3 |
| Molecular Weight | 156.95 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |