rac 2,4-O-Dimethylzearalenone CAS 7533-25-7
| CAS No. | 7533-25-7 |
| Molecular Formula | C20H26O5 |
| Molecular Weight | 346.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of rac 2,4-O-Dimethylzearalenone is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
rac 2,4-O-Dimethylzearalenone (CAS 7533-25-7), molecular formula C20H26O5 and molecular weight 346.42 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, rac 2,4-O-Dimethylzearalenone (C20H26O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 346.42 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C20H26O5 |
| Molecular Weight | 346.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
Recommended Standards
- Rabdoserrin A (CAS 96685-01-7)
- Tert-butyl (1S,4S)-5-(4-(methoxycarbonyl)benzyl)-2,5-diazabicyclo[2.2.1]Heptane-2-carboxylate (CAS 927679-46-7)
- Propargyl-PEG4-O-C1-Boc (CAS 2098489-63-3)
- Tert-butyl 2-(((benzyloxy)carbonyl)amino)-7-azabicyclo[2.2.1]Heptane-7-carboxylate (CAS 500556-92-3)
- Procymidox-d5 (CAS CATO-CCPD103166)
- (R)-2-(2-chloro-4-methylphenyl)-2-(methylamino)ethan-1-ol (CAS 1335641-58-1)
- 3,5-Bis(trifluoromethyl)-1H-pyrazole (CAS 14704-41-7)
- 3-Bromo-4-fluoro-isocyanatomethylbenzene (CAS 1186195-31-2)
- Benzyl 4-(((2-chloroethoxy)carbonyl)amino)piperazine-1-carboxylate (CAS 1890172-50-5)
- 2-(4-Ethoxyphenyl)acetyl chloride (CAS 10368-35-1)
- 3-Hydroxy-2,4,6-trinitrobenzoic acid (CAS 33927-45-6)
- 5-methylundecane (CAS 1632-70-8)
- 4-Ethynyl-3,5-dimethoxypyridine (CAS 2228928-81-0)
- Semaglutide Impurity 157 (x TFA Salt) (CAS CATO-C4X-2226157)
Why CATO?
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