Progesterone Impurity 95 CAS CATO-C4X-150295
| CAS No. | CATO-C4X-150295 |
| Molecular Formula | C28H40O6 |
| Molecular Weight | 472.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Progesterone Impurity 95 (CAS CATO-C4X-150295), a pharmacopoeial impurity reference standard (molecular formula C28H40O6, MW 472.61 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Progesterone Impurity 95 (C28H40O6) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C28H40O6 |
| Molecular Weight | 472.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 Progesterone Standards
- Progesterone Impurity 91 (CAS 301695-59-0)
- Progesterone Impurity 90 (CAS CATO-C4X-150290)
- Progesterone Impurity 93 (CAS CATO-C4X-150293)
- Progesterone Impurity 10 (3β, 20S)-Pregn-5-ene-3,17,20-triol Sulfate) (CAS 4080-06-2)
- Progesterone Impurity 68 (CAS CATO-C4X-150268)
- Progesterone Impurity 94 (CAS CATO-C4X-150294)
- Progesterone Impurity 54 (CAS CATO-C4X-150254)
- Progesterone Impurity 96 (CAS CATO-C4X-150296)
Recommended Standards
- Dihydrowithaferin A (CAS 5589-41-3)
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- 6-Benzyl-7,8,9-triphenylbenzo[8]annulene (CAS 107337-20-2)
- Nafamostat Impurity 59 (CAS 42823-33-6)
- Carfilzomib Impurity 81 (CAS CATO-C4X-102281)
- Letermovir impurity 112 (CAS CATO-C4X-2915112)
- 2-(4-Chlorophenoxy)pentanoic acid (CAS 119061-16-4)
- (S)-2-Formamido-4-(methylthio)-N-(naphthalen-2-yl)butanamide (CAS 76078-88-1)
- 3-Oxo-N-(thiazol-2-yl)butanamide (CAS 705-87-3)
- 2-(4-Chlorophenyl)-6-methoxy-1H-benzo[d]imidazole (CAS 6943-23-3)
- Vonoprazan Impurity 296 (CAS CATO-C4X-1020296)
- 4-((4-(Trifluoromethyl)pyridin-2-yl)oxy)benzenesulfonyl chloride (CAS 1227955-11-4)
- Brain Injury Derived Neurotrophic Peptide (H-3914.0001) (CAS 148330-12-5)
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