Sodium dodecylbenzenesulfonate (soft type) CAS 69669-44-9
| CAS No. | 69669-44-9 |
| Molecular Formula | C18H29O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Sodium dodecylbenzenesulfonate (soft type) (CAS 69669-44-9), molecular formula C18H29O3SNa and molecular weight 348.48 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Sodium dodecylbenzenesulfonate (soft type) (C18H29O3SNa) contains a steroid core, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 348.48 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H29O3S Na |
| Molecular Weight | 348.48 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Sulfur Atoms | 1 |
Related Sodium Standards
- Ammonium dodecylbenzenesulfonate (CAS 1331-61-9)
- Sodium 3-dodecylbenzenesulfonate (CAS 19589-59-4)
- Sodium 4-dodecylbenzenesulfonate (CAS 2211-98-5)
- Sodium dodecylbenzenesulfonate (mixture) (CAS 25155-30-0)
- Calcium 4-dodecylbenzenesulfonate (CAS 47236-10-2)
- Methyl 4-dodecylbenzenesulfonate (CAS 68506-75-2)
- Sodium Dodecylbenzenesulfonate (hard type) (mixture) (CAS 69227-09-4)
- Ethyl 2-dodecylbenzenesulfonate (CAS CATO-C3D-262340)
Recommended Standards
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- Cyclopropanecarboxylic acid, 2-methyl-2-[(1,2,4-trimethyl-2-penten-1-yl)oxy]propyl ester (CAS 676532-44-8)
- Human IgE Pentapeptide HEPP (CAS 62087-72-3)
Why CATO?
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