(7α,17β)-3-Methoxy-7-methyl-estra-1,3,5(10)-trien-17-ol CAS 15506-01-1
| CAS No. | 15506-01-1 |
| Molecular Formula | C20H28O2 |
| Molecular Weight | 300.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, (7α,17β)-3-Methoxy-7-methyl-estra-1,3,5(10)-trien-17-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 300.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
(7α,17β)-3-Methoxy-7-methyl-estra-1,3,5(10)-trien-17-ol (CAS 15506-01-1), molecular formula C20H28O2 and molecular weight 300.44 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C20H28O2 |
| Molecular Weight | 300.44 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
Related Methoxy Standards
- (17β)-13-Ethyl-3-methoxy-gona-2,5(10),15-trien-17-ol (CAS 119054-15-8)
- 3-Methoxy-17α-methylestra-1,3,5(10)trien-17β-ol (CAS 15236-73-4)
- (7β,17β)-3-Methoxy-7-methyl-estra-1,3,5(10)-trien-17-ol (CAS 153063-86-6)
- 3-Methoxy-18-methyl-1,3,5(10)-estratrien-17b-ol (CAS 3625-82-9)
- 3-Methoxy-7α-methyl-estra-2,5(10)-dien-17-one (CAS 5210-25-3)
- 3-Methoxy-7β-methyl-estra-2,5(10)-dien-17-one (CAS 32297-43-1)
- 5-Methoxy-N-phenyl-4-(trimethylsilyl)nicotinamide (CAS 1105675-62-4)
- 16-Methoxy-16-oxohexadecanoic acid (CAS 18451-85-9)
Recommended Standards
- rac all-trans 4-Hydroxy Retinal (CAS 18344-42-8)
- 13-Ethyl-3-methoxygona-2,5(10),8(14)-trien-17b-ol (CAS 19113-59-8)
- (17α)-19-Norpregn-5-en-20-yne-3,17-diol (CAS 1492-41-7)
- tert-Butyl (2-(tetrahydro-2H-thiopyran-4-yl)thiazol-5-yl)carbamate (CAS 1934431-55-6)
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- 3-Cyclopropoxy-N,N-dimethyl-4-(trifluoromethyl)pyridin-2-amine (CAS 1243346-66-8)
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- Neuropeptide Y (3-36) (porcine) trifluoroacetate salt (CAS 143863-88-1)
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