(2aS,2a1S,3R,4S,4aR,7aR)-3-Chlorooctahydro-2H-1,7-dioxacyclopenta[cd]indene-2a,4-diol CAS 103744-84-9
| CAS No. | 103744-84-9 |
| Molecular Formula | C9H13ClO4 |
| Molecular Weight | 220.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (2aS,2a1S,3R,4S,4aR,7aR)-3-Chlorooctahydro-2H-1,7-dioxacyclopenta[cd]indene-2a,4-diol 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.
(2aS,2a1S,3R,4S,4aR,7aR)-3-Chlorooctahydro-2H-1,7-dioxacyclopenta[cd]indene-2a,4-diol (CAS 103744-84-9) is a high-purity analytical reference standard with the molecular formula C9H13ClO4 and a molecular weight of 220.65 g/mol.
(2aS,2a1S,3R,4S,4aR,7aR)-3-Chlorooctahydro-2H-1,7-dioxacyclopenta[cd]indene-2a,4-diol (C9H13ClO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C9H13ClO4 |
| Molecular Weight | 220.65 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
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