2,2-Dimethyl-5-(propan-2-ylidene)-1,3-dioxane-4,6-dione CAS 2231-66-5
| CAS No. | 2231-66-5 |
| Molecular Formula | C9H12O4 |
| Molecular Weight | 184.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,2-Dimethyl-5-(propan-2-ylidene)-1,3-dioxane-4,6-dione 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.
2,2-Dimethyl-5-(propan-2-ylidene)-1,3-dioxane-4,6-dione (CAS 2231-66-5), molecular formula C9H12O4 and molecular weight 184.19 g/mol, is a CATO reference standard with documented purity and traceability.
2,2-Dimethyl-5-(propan-2-ylidene)-1,3-dioxane-4,6-dione (C9H12O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C9H12O4 |
| Molecular Weight | 184.19 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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- 4-Tosyl-1-oxa-4-azaspiro[4.5]Decane (CAS 866155-38-6)
- N-(2-Chlorophenyl)methanesulfonamide (CAS 7022-20-0)
- Propargyl-PEG3-SH (CAS 1412905-18-0)
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- 8-Azabicyclo[3.2.1]octan-2-ol (CAS 1408075-80-8)
- Semaglutide Impurity 129 (CAS 2490269-79-7)
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