Promestriene Impurity 6 CAS CATO-C4X-22056
| CAS No. | CATO-C4X-22056 |
| Molecular Formula | C21H30O2 |
| Molecular Weight | 314.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Promestriene Impurity 6 (CAS CATO-C4X-22056), a pharmacopoeial impurity reference standard (molecular formula C21H30O2, MW 314.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a hydroxyl group, an ether linkage, Promestriene Impurity 6 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 314.46 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.
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.
CATO manufactures Promestriene Impurity 6 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H30O2 |
| Molecular Weight | 314.46 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 |
Related Promestriene Standards
- Promestriene Impurity 3 (CAS 22034-63-5)
- Promestriene Impurity 12 (CAS CATO-C4X-220512)
- Promestriene Impurity 7 (CAS 1852-86-4)
- Promestriene Impurity 9 (CAS 2575516-67-3)
- Promestriene Impurity 1 (CAS CATO-C4X-22051)
- Promestriene Impurity 15 (CAS CATO-C4X-220515)
- Promestriene Impurity 8 (CAS CATO-C4X-22058)
- Promestriene (CAS 39219-28-8)
Recommended Standards
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- Palbociclib Impurity 29 (CAS 2204863-06-7)
- Pemafibrate Impurity 102 (CAS CATO-C4X-2903102)
- Linezolid Impurity 53 (CAS CATO-C4X-107353)
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- 4-(4-Ethylpiperazin-1-yl)-6-hydrazinylpyrimidine (CAS 700803-96-9)
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- Macrocyclic Peptide flaviviridae Viruses InhibitorDISCONTINUED (CAS 1510840-70-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com