Maesaquinone CAS 19833-20-6
| CAS No. | 19833-20-6 |
| Molecular Formula | C26H42O4 |
| Molecular Weight | 418.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 418.61 g/mol gives Maesaquinone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Maesaquinone (CAS 19833-20-6), molecular formula C26H42O4 and molecular weight 418.61 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Maesaquinone (C26H42O4) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 418.61 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C26H42O4 |
| Molecular Weight | 418.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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.) | 1962 |
Recommended Standards
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- Dinonyl terephthalate (CAS 4654-27-7)
- Ursodeoxycholic Acid Impurity 1 (CAS 4057-84-5)
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- 2-(4-Aminophenethyl)-1H-benzo[d]imidazol-5-amine (CAS 320740-70-3)
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- 1,1-diethylpropylamine (CAS 1571-51-3)
- 3-Oxa-8-azabicyclo[3.2.1]octane (CAS 280-07-9)
- N-([1,1'-Biphenyl]-2-yl)-2-((3-ethyl-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 577789-79-8)
- 2-(Hexadecyloxy)benzoic acid (CAS 5377-19-5)
- Methyl 1-(4-aminophenyl)-5-methyl-1H-pyrazole-3-carboxylate (CAS 1272756-53-2)
- Ethyl 3-amino-3-(4-isopropoxyphenyl)propanoate hydrochloride (CAS 945419-73-8)
- Tirzepatide Impurity 15 (CAS CATO-C4X-324015)
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