4,5α-Dihydro Norethandrolone CAS 2099-68-5
| CAS No. | 2099-68-5 |
| Molecular Formula | C20H32O2 |
| Molecular Weight | 304.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,5α-Dihydro Norethandrolone 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.
4,5α-Dihydro Norethandrolone (CAS 2099-68-5), molecular formula C20H32O2 and molecular weight 304.47 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, a hydroxyl group, an ether linkage, 4,5α-Dihydro Norethandrolone is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 304.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C20H32O2 |
| Molecular Weight | 304.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Dihydro Standards
- 4,5β-Dihydro Norethandrolone (1.0mg/ml in Acetonitrile) (CAS 31658-44-3)
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Recommended Standards
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- 4,6-Dimethyl-2,2-dipentyl-2,3-dihydrobenzofuran-5-ol (CAS 609348-02-9)
- 3,7,11,15-Tetramethylhexadeca-2,6,10,14-tetraenoic acid (CAS 83807-40-3)
- N-Methyl-3-(methylthio)-6,7-dihydrobenzo[c]thiophene-1-carboxamide (CAS 175202-56-9)
- 2,2,2-Trifluoro-1-(3-methylpyridin-4-yl)ethanone (CAS 1060801-59-3)
- 3-(4-(Pyridin-2-yl)piperazin-1-yl)propan-1-ol (CAS 68178-26-7)
- 2-((2-Chlorobenzyl)(isopropyl)amino)ethanol (CAS 1249115-19-2)
- 1-(Tert-butoxycarbonylamino)-3-(trifluoromethyl)cyclobutanecarboxylicacid (CAS 2306270-08-4)
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- 3-(3-Ethoxy-3-oxopropyl)benzoic acid (CAS 874204-67-8)
- Insulin Pork(≥27 USP units/mg) (CAS 12584-58-6)
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