Levonorgestrel EP Impurity J CAS 1175109-63-3
| CAS No. | 1175109-63-3 |
| Molecular Formula | C21H26O3 |
| Molecular Weight | 326.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, a hydroxyl group, an ether linkage, Levonorgestrel EP Impurity J is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 326.43 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).
CATO supplies Levonorgestrel EP Impurity J (CAS 1175109-63-3), a pharmacopoeial impurity reference standard (molecular formula C21H26O3, MW 326.43 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Levonorgestrel EP Impurity J 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 | C21H26O3 |
| Molecular Weight | 326.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Related Levonorgestrel Standards
- Levonorgestrel EP Impurity S (CAS 176254-10-7)
- Levonorgestrel EP Impurity T (CAS 14507-51-8)
- Levonorgestrel EP Impurity T (CAS 799-43-9)
- Levonorgestrel EP Impurity V (CAS 14009-70-2)
- Levonorgestrel Impurity 40 (10R) (CAS CATO-C4X-167740)
- Levonorgestrel Impurity 41 (CAS CATO-C4X-167741)
- Levonorgestrel EP Impurity G (CAS 87585-03-3)
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Why CATO?
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