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Sulfobetaine 12, SB 12(Detergent zwitterionic) S121 N-Dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate, 99+%[ 14933-08-5 ] f.w.: 335.6 daltons |
A synthetic zwitterionic detergent, which unlike other amphoteric surfactants, retains its zwitterionic character over a broad pH range.
| Quantity | Price | |
|---|---|---|
| 2gm + | $82.00 |  |
| 5gm + | $175.00 | |
| 10gm + | $330.00 | |
A synthetic zwitterionic detergent, which unlike other amphoteric surfactants, retains its zwitterionic character over a broad pH range. This property is attributed to the presence of both a strongly basic quaternary ammonium ion and an acidic sulfonate ion of equal strength. This ionic balance presumably prevents irreversible binding to either anionic or cationic compounds. Aggregation number: 55.
- Raper, S.E., et al. 1992. Hepatology 16, 433.
- Nollstadt, K.H., et al. 1989. J. Chromatogr. 497, 87.
- Byers, S., et al. 1987. J. Biol. Chem. 262, 9166.
- CMC (20 mM Tris-HCl, pH 8.0, 0.1 M NaCl): ~ 2.8 mM (0.094%)
- Aggregation Number (H2O)(2): ~ 55-87
- Purity: 98% pure by HPLC analysis.
- pH (1% solution): 5-8
- Solubility in water at 20°C: 30%
- Conductance (10% solution): < 70 micromhos
- Percent fluorescence due to a 0.1% detergent solution at 345 nm: < 10
- Absorbance of a 1% detergent solution: 340 nm: <0.02 280 nm: < 0.04 260 nm: < 0.06 225 nm: < 0.1