(βS,1R,3aS,4E,7aR)-Octahydro-4-[(2Z)-2-[(5S)-5-hydroxy-2-methylenecyclohexylidene]ethylidene]-β,7a-dimethyl-1H-indene-1-ethanol CAS 116499-21-9
| CAS No. | 116499-21-9 |
| Molecular Formula | C22H34O2 |
| Molecular Weight | 330.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(βS,1R,3aS,4E,7aR)-Octahydro-4-[(2Z)-2-[(5S)-5-hydroxy-2-methylenecyclohexylidene]ethylidene]-β,7a-dimethyl-1H-indene-1-ethanol (CAS 116499-21-9), molecular formula C22H34O2 and molecular weight 330.50 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H34O2, (βS,1R,3aS,4E,7aR)-Octahydro-4-[(2Z)-2-[(5S)-5-hydroxy-2-methylenecyclohexylidene]ethylidene]-β,7a-dimethyl-1H-indene-1-ethanol 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 330.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C22H34O2 |
| Molecular Weight | 330.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Recommended Standards
- Methyl 9,10-Dihydroxystearate (CAS 1115-01-1)
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- Rel-methyl (2R,3S,6S,7S)-6-hydroxy-2-methoxy-3,7-dimethylpentadecanoate (CAS 102616-25-1)
- 5-PREGNEN-16α-METHYL-3β-OL-20-ONE (CAS 16394-71-1)
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- 1-Bromo-4-ethyl-2-methylbenzene (CAS 90560-90-0)
- 1-(4-Methylthiazol-2-yl)piperidin-4-ol (CAS 1247082-59-2)
- Benazolin-Ethyl Ester (CAS 25059-80-7)
- Ethyl 4-chloro-7-methoxyquinoline-6-carboxylate (CAS 2089377-15-9)
- 2-(Aminomethyl)-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-sulfonyl chloride (CAS 1361797-47-8)
- 2-Chloro-5-fluoro-1H-indole-3-carbaldehyde (CAS 535925-49-6)
- 4-Methyl-3-phenylaniline (CAS 13480-37-0)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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