Testosterone Impurity 73 CAS 2608628-54-0
| CAS No. | 2608628-54-0 |
| Molecular Formula | C19H26O2 |
| Molecular Weight | 286.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Testosterone Impurity 73 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.
As a process- or degradation-related impurity, Testosterone Impurity 73 (CAS 2608628-54-0, C19H26O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Testosterone Impurity 73 (C19H26O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C19H26O2 |
| Molecular Weight | 286.41 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.) | 2001 |
Related Testosterone Standards
- Testosterone Impurity N35 (CAS 27833-18-7)
- Testosterone EP Impurity M (CAS 133177-83-0)
- Testosterone Impurity 25 (CAS 2585198-63-4)
- Testosterone EP Impurity L (CAS 2398-99-4)
- Testosterone EP Impurity K (CAS CATO-C4X-24323)
- Testosterone EP Impurity I (CAS 2484-30-2)
- Testosterone Impurity 8 (Androstane-3,17-Dione) (Mixture of Diastereomers) (CAS 5982-99-0)
- Testosterone Impurity 15 (CAS 1311972-85-6)
Recommended Standards
- 2,2-dimethylhexane-1,3-diyl dibutyrate (CAS CATO-C4X-32511)
- 4-Androstene-3,17-Dione (CAS 63-05-8)
- Boldenone (CAS 846-48-0)
- Dimethyl Tetradecanedioate (CAS 5024-21-5)
- Dolasetron Impurity 2 (CAS 127951-99-9)
- Stiripentol impurity 1 (CAS CATO-C4X-32291)
- Ceftizoxime impurity 95 (CAS CATO-C4X-179395)
- 1-(3-Amino-4,6-dimethylthieno[2,3-b]pyridin-2-yl)ethanone (CAS 52505-42-7)
- Adenosine-3- (CAS 714950-53-5)
- 5-Amino-2-(piperidin-1-yl)benzonitrile (CAS 34595-33-0)
- Phenazine-1,4-diamine (CAS 91974-60-6)
- 4,5,7-Trimethyl-6-phenyl-2,6-dihydro-1H-pyrrolo[3,4-d]pyridazin-1-one (CAS 1171410-42-6)
- Resmetirom impurity 118 (CAS CATO-C4X-2912118)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
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