Prednisone Impurity 28 (20(S)-Hydroxy Methylprednisolone) CAS 387-66-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 387-66-6 |
| Molecular Formula | C22H32O5 |
| Molecular Weight | 376.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Prednisone Impurity 28 (20(S)-Hydroxy Methylprednisolone) (CAS 387-66-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C22H32O5. Molecular weight: 376.49 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C22H32O5 |
| Molecular Weight | 376.49 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Prednisone Standards
- Prednisone Impurity 29 (20(R)-Hydroxy Methylprednisolone) (CAS 387-65-5)
- Prednisone Impurity 14 (CAS 94088-91-2)
- Prednisone Impurity 5 (CAS 215095-77-5)
- Prednisone Impurity 12 (CAS CATO-C4X-169412)
- Prednisone Impurity N56 (CAS 103466-44-0)
- Prednisone Impurity N297 (CAS 1249-67-8)
- Prednisone Impurity 14 (CAS CATO-C4X-169414)
- Prednisone-d8 (CAS CATO-C4X-191927)
Recommended Standards
- N,N'-((1S,4R)-2-(tert-butyl)cyclohex-2-ene-1,4-diyl)dibenzamide (CAS 2053651-96-8)
- N-(2-(Benzo[d]thiazol-2-yl)phenyl)-2-(phenylthio)acetamide (CAS 896018-90-9)
- Resolvin D1 (CAS 872993-05-0)
- N-(Piperidin-3-yl)pyrimidin-2-amine hydrochloride (CAS 1185312-44-0)
- (3,4-Dibromo-3,4,4-trifluorobutanesulfonyl)benzene (CAS 478247-75-5)
- 3-(Aminomethyl)-2-(methylthio)phenol (CAS 1243460-96-9)
- 1,3-Dimethyl-7-(piperidin-1-yl)pyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione (CAS 162147-60-6)
- 2-Amino-5-(4-bromophenyl)-5-[(3,4,5-trimethoxyphenyl)methyl]-4,5-dihydro-1H-imidazol-4-one (CAS 1354918-47-0)
- 4-[4-(4'-Chlorobiphenyl-2-ylmethyl)piperazin-1-yl]benzoic Acid-d8 (CAS 1246819-26-0)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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 13829788188 / jacky.chen@cato-chem.com