Nilestriol Impurity 1 CAS CATO-C4X-24511
| CAS No. | CATO-C4X-24511 |
| Molecular Formula | C23H30O2 |
| Molecular Weight | 338.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Nilestriol Impurity 1 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.
CATO supplies Nilestriol Impurity 1 (CAS CATO-C4X-24511), a pharmacopoeial impurity reference standard (molecular formula C23H30O2, MW 338.48 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a hydroxyl group, an ether linkage, Nilestriol Impurity 1 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 338.48 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C23H30O2 |
| Molecular Weight | 338.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Nilestriol Standards
Recommended Standards
- Exemestane Impurity 19 (CAS CATO-C4X-164119)
- 1,3-Di(Tert-Butylperoxyisopropyl)Benzene (CAS 2212-81-9)
- Poly(1,4-cyclohexanedimethanol adipate) (CAS 33478-30-7)
- Kirenol (CAS 52659-56-0)
- Bosutinib Impurity 23 (CAS CATO-C4X-184723)
- Cloransulam-Methyl Impurity 6 (CAS CATO-C4X-31706)
- Netupitant Impurity 26 (CAS CATO-C4X-122326)
- 4-Fluoro-3-methoxybenzaldehyde (CAS 128495-46-5)
- 2'-(2-Methoxyethyl)-1'-oxo-1',4'-dihydro-2'h-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxylic acid (CAS 1217531-62-8)
- Urapidil Impurity 5 (CAS 34661-73-9)
- N-[3-(1-Imidazolyl)propyl]-2,4-dichlorobenzamide (CAS 349092-52-0)
- 7-Methylisoquinolin-6-ol (CAS 666735-06-4)
- 3-(Pentylthio)benzaldehyde (CAS 1443348-39-7)
- Semaglutide impurity 200 (CAS CATO-C4X-2226200)
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