Prednisolone Sodium 21-Metasulfobenzoate CAS 630-67-1
| CAS No. | 630-67-1 |
| Molecular Formula | C28H31O9S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Prednisolone Sodium 21-Metasulfobenzoate (CAS 630-67-1), molecular formula C28H31O9SNa and molecular weight 566.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C28H31O9SNa, Prednisolone Sodium 21-Metasulfobenzoate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 566.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C28H31O9S Na |
| Molecular Weight | 566.60 g/mol |
| 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Related Prednisolone Standards
- Prednisolone Impurity 29 (CAS 106822-21-3)
- Prednisolone Pivalate (CAS 1107-99-9)
- Prednisolone Impurity 52 (CAS 118864-87-2)
- Prednisolone Sodium Phosphate (CAS 125-02-0)
- Prednisolone EP Impurity I (CAS 13479-38-4)
- Prednisolone impurity 66 (CAS 137759-50-3)
- Prednisolone Impurity 51 (CAS 1428883-48-0)
- Prednisolone-17-valerate (CAS 15180-00-4)
Recommended Standards
- 1,5,2-Dioxazepane hydrobromide (CAS 2138560-44-6)
- 1-Amino-2-methylpyridinium iodide (CAS 7583-90-6)
- 3-Chloro-7-(chloromethyl)-1,5-naphthyridin-2(1H)-one (CAS 2855981-77-8)
- 5-Isopropoxy-1H-pyrazol-3-amine (CAS 121507-34-4)
- 3-hydrazinyl-1-methyl-1,2-dihydropyrazin-2-one (CAS 1342087-35-7)
- 2-Chloro-6-fluoro-3-(methoxymethoxy)benzoic acid (CAS 2586126-90-9)
- (S)-2-Oxa-8-azaspiro[4.5]decan-4-amine (CAS 2055760-60-4)
- Methyl 4-(thiophen-3-yl)butanoate (CAS 122417-23-6)
- 467-MOF(Al) (CAS 1818266-93-1)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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