(2E,4E)-3-methyl-5-((1S,2S)-2-methyl-2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)cyclopropyl)penta-2,4-dienoic acid CAS 220619-73-8
| CAS No. | 220619-73-8 |
| Molecular Formula | C24H32O2 |
| Molecular Weight | 352.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (2E,4E)-3-methyl-5-((1S,2S)-2-methyl-2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)cyclopropyl)penta-2,4-dienoic acid 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.
(2E,4E)-3-methyl-5-((1S,2S)-2-methyl-2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)cyclopropyl)penta-2,4-dienoic acid (CAS 220619-73-8) is a high-purity analytical reference standard with the molecular formula C24H32O2 and a molecular weight of 352.51 g/mol.
(2E,4E)-3-methyl-5-((1S,2S)-2-methyl-2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)cyclopropyl)penta-2,4-dienoic acid (C24H32O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C24H32O2 |
| Molecular Weight | 352.51 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
Recommended Standards
- 1-(Propan-2-ylidene)-3-{2-[1-(propan-2-ylidene)-1H-inden-3-yl]propan-2-yl}-1H-indene (CAS 190728-99-5)
- 1,3-Bis(5-(ethylamino)pentyl)-6-methylpyrimidine-2,4(1H,3H)-dione (CAS 672906-60-4)
- AB-005 Azepane Isomer (CAS 1445751-74-5)
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- Methyl 3-hydroxy-5-(methylsulfonyl)isothiazole-4-carboxylate (CAS 878477-24-8)
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- 2-(3,5-Dimethylphenyl)imidazo[1,2-a]pyridin-3-amine (CAS 1081633-12-6)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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