Cortisol 21-m-Sulfobenzoate Sodium Salt CAS 33767-03-2
| CAS No. | 33767-03-2 |
| Molecular Formula | C28H33O9S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Cortisol 21-m-Sulfobenzoate Sodium Salt (CAS 33767-03-2), molecular formula C28H33O9SNa and molecular weight 568.61 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Cortisol 21-m-Sulfobenzoate Sodium Salt (C28H33O9SNa) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Cortisol 21-m-Sulfobenzoate Sodium Salt 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 | C28H33O9S Na |
| Molecular Weight | 568.61 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Sulfur Atoms | 1 |
Related Cortisol Standards
- Cortisol-9,12,12-d3 (CAS 115699-92-8)
- Cortisol 21-Sulfate (CAS 1253-43-6)
- Cortisol-1,2-d2 (CAS 1257650-73-9)
- Cortisol 21-sulfate potassium salt (CAS 152957-32-9)
- Cortisol 21-β-D-Glucuronide Methyl Ester 2,3,5-Triacetate (CAS 24562-21-8)
- Cortisol 21-mesylate (CAS 6677-96-9)
- Cortisol Impurity 4 (CAS 7050-24-0)
- Cortisol 21-beta-D-Glucuronide (CAS 7301-54-4)
Recommended Standards
- 4-Acetamido-3-methylbenzoic acid (CAS 37901-92-1)
- Menaquinone 6 (CAS 84-81-1)
- N-(2,5-Dichlorophenyl)-2,2,2-trifluoroacetamide (CAS 328-11-0)
- 4-Methylumbelliferyl α-L-arabinofuranoside (CAS 77471-44-4)
- N-(1-Hydroxy-2-butyl)furan-2-carboxamide (CAS 791832-35-4)
- Pyridine-2-thiol (CAS 73018-10-7)
- Isopropyl-pyrazin-2-ylmethyl-amine (CAS 1353976-91-6)
- 1-(3-Chlorophenyl)-3-(3-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 618101-71-6)
- trans-N-Cbz-1,4-cyclohexanediamine (CAS 149423-77-8)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
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