Chlormadinone Acetate EP Impurity L CAS 2658-74-4
| CAS No. | 2658-74-4 |
| Molecular Formula | C23H31ClO4 |
| Molecular Weight | 406.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| 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 Chlormadinone Acetate EP Impurity L.
Chlormadinone Acetate EP Impurity L (CAS 2658-74-4), molecular formula C23H31ClO4 and molecular weight 406.94 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H31ClO4, Chlormadinone Acetate EP Impurity L contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.94 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C23H31ClO4 |
| Molecular Weight | 406.94 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Chlormadinone Standards
- Chlormadinone Acetate (CAS 302-22-7)
- Chlormadinone Acetate EP Impurity H (CAS 1054-64-4)
- Chlormadinone Acetate EP Impurity F (CAS 1172-82-3)
- Chlormadinone Acetate EP Impurity I (CAS 4809-88-5)
- Chlormadinone Acetate EP Impurity I (CAS 4203-01-4)
- Chlormadinone Acetate EP Impurity K (CAS 425-51-4)
- Chlormadinone Acetate EP Impurity E (CAS 15251-04-4)
- Chlormadinone (CAS 1961-77-9)
Recommended Standards
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