Nilestriol Impurity 3 CAS CATO-C4X-24513
| CAS No. | CATO-C4X-24513 |
| Molecular Formula | C23H30O3 |
| Molecular Weight | 354.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Nilestriol Impurity 3 (CAS CATO-C4X-24513), a pharmacopoeial impurity reference standard (molecular formula C23H30O3, MW 354.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Nilestriol Impurity 3 (C23H30O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 354.48 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures Nilestriol Impurity 3 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 | C23H30O3 |
| Molecular Weight | 354.48 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 |
Related Nilestriol Standards
Recommended Standards
- Cloprostenol Impurity 4 (CAS 23518-25-4)
- Altrenogest impurity 14 (CAS 165541-64-0)
- Cloprostenol Impurity 3 (CAS CATO-C4X-20363)
- Estradiol Valerate EP Impurity C (CAS 95959-20-9)
- Gonadorelin impurity 5 (CAS CATO-C4X-23545)
- Fluocinolone Acetonide EP Impurity M (CAS 356-12-7)
- Vonoprazan Fumarate Impurity 56 (CAS 445-27-2)
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- 4-((3-Chloro-4-methylphenyl)amino)-4-oxobutanoic acid (CAS 196934-78-8)
- 2-methyl-N-[4-(trifluoromethyl)phenyl]acrylamide (CAS 341965-79-5)
- 3-Chloro-6-methoxy-1H-pyrrolo[3,2-b]pyridine (CAS 1190316-40-5)
- 1-((1H-Benzo[d][1,2,3]triazol-1-yl)methyl)dibenzo[b,d]furan-2-ol (CAS 300679-05-4)
- 4-Butoxy-3-iodoaniline (CAS 1484654-79-6)
- MLCK inhibitor peptide 18 (CAS 224579-74-2)
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