7,9-Di-tert-butyl-1-oxaspiro[4,5]deca-6,9-dien-8-one CAS 138345-00-3
| CAS No. | 138345-00-3 |
| Molecular Formula | C17H26O2 |
| Molecular Weight | 262.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7,9-Di-tert-butyl-1-oxaspiro[4,5]deca-6,9-dien-8-one (CAS 138345-00-3), molecular formula C17H26O2 and molecular weight 262.39 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 7,9-Di-tert-butyl-1-oxaspiro[4,5]deca-6,9-dien-8-one (C17H26O2) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H26O2 |
| Molecular Weight | 262.39 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
Recommended Standards
- 2-(Tert-butyl)-1-(2-phenoxyethyl)piperazine (CAS 1379065-77-6)
- (9R)-9-(2-Pyridinyl)-6-oxaspiro[4.5]decane-9-acetonitrile (CAS 1401031-38-6)
- 1-(6-(4-Isopropylpiperazin-1-yl)-4-methylpyridin-3-yl)ethanamine (CAS 1355232-45-9)
- 1-(2,5-Dihydro-1H-pyrrol-1-yl)-2-(3-azaspiro[5.5]undecan-9-yl)ethanone (CAS 1422139-00-1)
- (1R,4R)-5-tert-Butoxycarbonyl-2-oxa-5-azabicyclo[2.2.1]heptane-4-carboxylic acid (CAS 1932204-83-5)
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