((2S,4AR)-1,1,5,5-tetramethyl-2,3,4,5,6,7-hexahydro-1H-2,4a-methanonaphthalen-8-yl)methyl acetate CAS 61826-56-0
| CAS No. | 61826-56-0 |
| Molecular Formula | C18H28O2 |
| Molecular Weight | 276.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of ((2S,4AR)-1,1,5,5-tetramethyl-2,3,4,5,6,7-hexahydro-1H-2,4a-methanonaphthalen-8-yl)methyl acetate is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
((2S,4AR)-1,1,5,5-tetramethyl-2,3,4,5,6,7-hexahydro-1H-2,4a-methanonaphthalen-8-yl)methyl acetate (CAS 61826-56-0), molecular formula C18H28O2 and molecular weight 276.41 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H28O2, ((2S,4AR)-1,1,5,5-tetramethyl-2,3,4,5,6,7-hexahydro-1H-2,4a-methanonaphthalen-8-yl)methyl acetate contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 276.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), ((2S,4AR)-1,1,5,5-tetramethyl-2,3,4,5,6,7-hexahydro-1H-2,4a-methanonaphthalen-8-yl)methyl acetate 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 | C18H28O2 |
| Molecular Weight | 276.41 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.) | 1974 |
Recommended Standards
- Bolandiol (CAS 19793-20-5)
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- 3-(2-Aminoethyl)-2,3-dihydro-1,3-thiazol-2-one (CAS 1340039-62-4)
- tert-butyl N-(1-cyclohexyl-1,3-dihydroxypropan-2-yl)carbamate (CAS 2060006-08-6)
- 1,1-Difluoro-4-methyl-6-azaspiro[2.5]Octane (CAS 2306261-66-3)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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