rel-(2R,3S)-1,4-dichlorobutane-2,3-diol CAS 7268-35-1
| CAS No. | 7268-35-1 |
| Molecular Formula | C4H8Cl2O2 |
| Molecular Weight | 159.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of rel-(2R,3S)-1,4-dichlorobutane-2,3-diol is closely related to 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.
rel-(2R,3S)-1,4-dichlorobutane-2,3-diol (CAS 7268-35-1) is a high-purity analytical reference standard with the molecular formula C4H8Cl2O2 and a molecular weight of 159.01 g/mol.
Based on its molecular formula C4H8Cl2O2, rel-(2R,3S)-1,4-dichlorobutane-2,3-diol contains 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 159.01 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C4H8Cl2O2 |
| Molecular Weight | 159.01 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) | 0.0 |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
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