(2R,3S)-rel-2,3-Dibromo-1,4-butanediol CAS 76818-94-5
| CAS No. | 76818-94-5 |
| Molecular Formula | C4H8Br2O2 |
| Molecular Weight | 247.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies (2R,3S)-rel-2,3-Dibromo-1,4-butanediol (CAS 76818-94-5), a certified reference material (molecular formula C4H8Br2O2, MW 247.91 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, (2R,3S)-rel-2,3-Dibromo-1,4-butanediol is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 247.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), (2R,3S)-rel-2,3-Dibromo-1,4-butanediol 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 | C4H8Br2O2 |
| Molecular Weight | 247.91 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1978 |
| Halogen Content | Br-containing |
Recommended Standards
- 2,3-dibromo-1,4-butanediol (CAS 1947-58-6)
- 2,2,2-Trichloroethyl Chlorosulfate (CAS 764-09-0)
- 4-Chloro-2-fluoro-1-(trichloromethyl)benzene (CAS 179111-13-8)
- 2,3-Dibromobutane-1,4-diol (CAS 20163-90-0)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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