6-[(1E, 3E)-4-(4-Methoxy-2,3,6-trimethylphenyl-d3)-2-methyl-1,3-butadien-1-yl]-4-methyl-2H-pyran-2-one CAS 1185236-53-6
| CAS No. | 1185236-53-6 |
| Molecular Formula | C20H22O3 |
| Molecular Weight | 310.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-[(1E, 3E)-4-(4-Methoxy-2,3,6-trimethylphenyl-d3)-2-methyl-1,3-butadien-1-yl]-4-methyl-2H-pyran-2-one (CAS 1185236-53-6), molecular formula C20H22O3 and molecular weight 310.39 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-[(1E, 3E)-4-(4-Methoxy-2,3,6-trimethylphenyl-d3)-2-methyl-1,3-butadien-1-yl]-4-methyl-2H-pyran-2-one (C20H22O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 310.39 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.
As a certified reference material (CRM), 6-[(1E, 3E)-4-(4-Methoxy-2,3,6-trimethylphenyl-d3)-2-methyl-1,3-butadien-1-yl]-4-methyl-2H-pyran-2-one 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 | C20H22O3 |
| Molecular Weight | 310.39 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Recommended Standards
- (E)-2-(4-Methylbenzylidene)-3-phenyl-2,3-dihydro-1H-inden-1-one (CAS 118485-44-2)
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- (2S,3S,4S)-3,4-Bis(benzyloxy)-2-methyl-3,4-dihydro-2H-pyran (CAS 117249-17-9)
- 2-[(1-benzylpiperidin-4-yl)amino]pyridine-3-carboxamide (CAS 1193388-87-2)
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- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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