7,7-Dimethyl-5,9-dioxaspiro[3.5]Nonane CAS 28898-51-3
| CAS No. | 28898-51-3 |
| Molecular Formula | C9H16O2 |
| Molecular Weight | 156.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7,7-Dimethyl-5,9-dioxaspiro[3.5]Nonane (CAS 28898-51-3) is a high-purity analytical reference standard with the molecular formula C9H16O2 and a molecular weight of 156.22 g/mol.
Structurally, 7,7-Dimethyl-5,9-dioxaspiro[3.5]Nonane (C9H16O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 156.22 g/mol, it falls into the medium-molecular-weight range.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7,7-Dimethyl-5,9-dioxaspiro[3.5]Nonane 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 | C9H16O2 |
| Molecular Weight | 156.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1965 |
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