Prednisone Impurity 12 CAS CATO-C4X-169412
| CAS No. | CATO-C4X-169412 |
| Molecular Formula | C21H24O6 |
| Molecular Weight | 372.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Prednisone Impurity 12 (CAS CATO-C4X-169412), a pharmacopoeial impurity reference standard (molecular formula C21H24O6, MW 372.41 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Prednisone Impurity 12 (C21H24O6) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 372.41 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C21H24O6 |
| Molecular Weight | 372.41 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Prednisone Standards
- Prednisone Impurity 14 (CAS 94088-91-2)
- Prednisone Impurity 5 (CAS 215095-77-5)
- Prednisone Impurity 28 (20(S)-Hydroxy Methylprednisolone) (CAS 387-66-6)
- Prednisone Impurity 29 (20(R)-Hydroxy Methylprednisolone) (CAS 387-65-5)
- Prednisone-d8 (CAS CATO-C4X-191927)
- Prednisone-d8 (CAS CATO-CCAD300850)
- Prednisone-d7 (Major) (CAS CATO-C4X-191926)
- Prednisone-d4 (Major) (CAS CATO-CCAD303314)
Recommended Standards
- Iloperidone Impurity 5 (CAS 19417-90-4)
- Olodaterol impurity 34 (CAS 869493-97-0)
- Formoterol impurity 125 (CAS CATO-C4X-1525125)
- Roxadustat Impurity 127 (CAS CATO-C4X-2213127)
- Levofloxacin impurity 74 (CAS CATO-C4X-137174)
- Letermovir Impurity 86 (CAS CATO-C4X-291586)
- Elobixibat Impurity 39 (CAS CATO-C4X-283839)
- Raltitrexed Impurity 33 (CAS CATO-C4X-138633)
- Vibracolor Moonlight Blue (CAS 67846-56-4)
- N,N-dimethyl-2-{[(3-methyloxetan-3-yl)methyl]amino}acetamide (CAS 1341950-95-5)
- Mivacurium chloride Impurity 37 (CAS 91248-14-5)
- N-Cyclohexyl-N-(4-methyloxazol-2-yl)butyramide (CAS 57068-49-2)
- 2-(P-tolyloxy)nicotinaldehyde (CAS 478030-89-6)
- Casein Kinase II Receptor Peptide (CAS 198481-81-1)
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