Prednisone Impurity 11 CAS 2601-23-2
| CAS No. | 2601-23-2 |
| Molecular Formula | C23H26O6 |
| Molecular Weight | 398.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 398.45 g/mol gives Prednisone Impurity 11 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Prednisone Impurity 11 (CAS 2601-23-2) is a certified pharmaceutical impurity reference standard with the molecular formula C23H26O6 and a molecular weight of 398.45 g/mol.
Structurally, Prednisone Impurity 11 (C23H26O6) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 398.45 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Prednisone Impurity 11 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 | C23H26O6 |
| Molecular Weight | 398.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Prednisone Standards
- Prednisone Impurity 9 (CAS 2435-02-1)
- Prednisone 21-Acetate (CAS 125-10-0)
- Prednisone-d4 (Major) (CAS CATO-C4X-191925)
- Prednisone Impurity N297 (CAS 1249-67-8)
- Prednisone Impurity 14 (CAS CATO-C4X-169414)
- Prednisone Impurity N56 (CAS 103466-44-0)
- Prednisone Impurity 28 (20(S)-Hydroxy Methylprednisolone) (CAS 387-66-6)
- Prednisone Impurity 29 (20(R)-Hydroxy Methylprednisolone) (CAS 387-65-5)
Recommended Standards
- Budesonide impurity 44 (CAS CATO-C4X-138944)
- Prednisolone Impurity 32 (CAS CATO-C4X-173732)
- 53851-13-1 C22H26N2O5 Caboxine A W1049 (CAS 53851-13-1)
- Prednisolone Impurity 34 (CAS CATO-C4X-173734)
- Dapagliflozin Impurity 97 (CAS CATO-C4X-113897)
- Lercanidipine Impurity 66 (CAS CATO-C4X-136466)
- Apalutamide Impurity 99 (CAS CATO-C4X-274999)
- 2-Amino-4-(pyridin-2-yl)butanamide (CAS 1485691-96-0)
- (4-Bromo-2-isopropoxyphenyl)methanol (CAS 1099693-56-7)
- ethyl 2-[5-(difluoromethyl)-1,3,4-oxadiazol-2-yl]acetate (CAS 2839917-49-4)
- Levocabastine Impurity 14 (CAS CATO-C4X-228914)
- 1-(3-Methylazetidin-3-yl)ethan-1-one (CAS 1935976-39-8)
- 4-(3-(Trifluoromethyl)-1H-pyrazol-1-yl)benzoyl chloride (CAS 220461-85-8)
- Semaglutide impurity 46 (CAS CATO-C4X-222646)
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