5-cyclopentanecarbonyl-2,2-dimethyl-1,3-dioxane-4,6-dione CAS 134302-12-8
| CAS No. | 134302-12-8 |
| Molecular Formula | C12H16O5 |
| Molecular Weight | 240.25 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.
5-cyclopentanecarbonyl-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 134302-12-8), molecular formula C12H16O5 and molecular weight 240.25 g/mol, is a CATO reference standard with documented purity and traceability.
5-cyclopentanecarbonyl-2,2-dimethyl-1,3-dioxane-4,6-dione (C12H16O5) 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).
As a certified reference material (CRM), 5-cyclopentanecarbonyl-2,2-dimethyl-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.
Physical & Chemical Properties
| Molecular Formula | C12H16O5 |
| Molecular Weight | 240.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1995 |
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Recommended Standards
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- 2′,4-Dihydroxychalcone (CAS 13323-66-5)
- 2-Hydroxy-4-isopropyl-3,5-dimethoxybenzoic acid (CAS 1352034-26-4)
- tert-Butyl (1-(butylamino)-1-oxopropan-2-yl)carbamate (CAS 176249-81-3)
- 2-Chloroethyl (3-chlorophenyl)carbamate (CAS 587-56-4)
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- Tert-butyl 9-fluoro-2,6-diazaspiro[4.5]Decane-2-carboxylate (CAS 1889430-37-8)
- Baloxavir Marboxil Impurity 217 (CAS CATO-C4X-2108217)
- 8-Methyl-4-[3-(trifluoromethyl)benzoyl]-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-99-4)
- N-(5-Benzyl-1,3,4-thiadiazol-2-yl)-2,6-dimethoxybenzamide (CAS 82559-53-3)
- 3-Iodo-6-(trifluoromethyl)imidazo[1,2-a]pyridine (CAS 1233690-80-6)
- Abemaciclib Impurity 130 (CAS CATO-C4X-2937130)
- Semaglutide impurity 247 (CAS CATO-C4X-2226247)
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