Testosterone Impurity N2 CAS 3066-12-4
| CAS No. | 3066-12-4 |
| Molecular Formula | C19H28O3 |
| Molecular Weight | 304.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Testosterone Impurity N2.
Testosterone Impurity N2 (CAS 3066-12-4) is a certified pharmaceutical impurity reference standard with the molecular formula C19H28O3 and a molecular weight of 304.42 g/mol.
Testosterone Impurity N2 (C19H28O3) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Testosterone Impurity N2 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 | C19H28O3 |
| Molecular Weight | 304.42 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Testosterone Standards
- Testosterone Impurity 10 (CAS 18841-73-1)
- Testosterone Impurity 49 (CAS CATO-C4X-243249)
- Testosterone Impurity 64 (CAS CATO-C4X-243264)
- Testosterone Impurity 54 (CAS CATO-C4X-243254)
- Testosterone Impurity 66 (CAS 95369-50-9)
- Testosterone Impurity N16 (CAS 24704-84-5)
- Testosterone Impurity 65 (CAS 570-94-5)
- Testosterone Impurity 18 (CAS 1311972-89-0)
Recommended Standards
- 4,5-Epoxy-17-β-hydroxy-5-androstan-3-one (CAS 51154-10-0)
- 4-ANDROSTEN-17β, 18-DIOL-3-ONE (CAS 7150-17-6)
- 4-(5,5-Dimethyl-1,3-dioxan-2-yl)-4-isopropylbutyrophenone (CAS 898755-59-4)
- 4-ANDROSTEN-4, 17β-DIOL-3-ONE (CAS 2141-17-5)
- Tofacitinib Impurity 184 (CAS CATO-C4X-1079184)
- Bortezomib Impurity 43 (CAS 513-36-0)
- Hydrocortisone EP Impurity A (CAS 50-24-8)
- 5-(2-chloro-6-fluorobenzyl)-4-oxo-1,2,3,3a,4,5-hexahydropyrrolo[1,2-a]quinoxaline-7-carbonitrile (CAS 1008035-87-7)
- 1-(4-Methoxy-2-methylphenyl)-1H-pyrrole (CAS 383137-82-4)
- sec-Butyl 4-Hydroxybenzoate (CAS 17696-61-6)
- trans-3-Bromo-4-hydroxytetrahydrothiophene 1,1-dioxide (CAS 20688-40-8)
- 4-[(Benzenesulfonyl)methyl]-6-[(2,4-dichlorophenyl)sulfanyl]-2-methylpyrimidine (CAS 338960-51-3)
- N-{2-[4-Amino-2-(trifluoromethyl)phenoxy]ethyl}-N,N-dimethylamine dihydrochloride (CAS 1185300-44-0)
- Neuropeptide Y (13-36) (porcine) (CAS 113662-54-7)
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