rel-(1S,2S,3S,4S)-5-Oxobicyclo[2.2.1]heptane-2,3-dicarboxylic acid CAS 42392-43-8
| CAS No. | 42392-43-8 |
| Molecular Formula | C9H10O5 |
| Molecular Weight | 198.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
rel-(1S,2S,3S,4S)-5-Oxobicyclo[2.2.1]heptane-2,3-dicarboxylic acid (CAS 42392-43-8) is a high-purity analytical reference standard with the molecular formula C9H10O5 and a molecular weight of 198.17 g/mol.
Based on its molecular formula C9H10O5, rel-(1S,2S,3S,4S)-5-Oxobicyclo[2.2.1]heptane-2,3-dicarboxylic acid contains a carboxylic acid group, 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 198.17 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures rel-(1S,2S,3S,4S)-5-Oxobicyclo[2.2.1]heptane-2,3-dicarboxylic acid 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.
Physical & Chemical Properties
| Molecular Formula | C9H10O5 |
| Molecular Weight | 198.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
Recommended Standards
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