CHAPS

(Detergent zwitterionic)

S112

(3-[3-Cholamidopropyl)dimethylammonio]-1-propanesulfonate, 99+%

CAS#: [ 75621-03-3 ]

Formula Weight: f.w.: 614.9 daltons

CHAPS is a zwitterionic detergent that solubilizes proteins in their native state. It has all the advantages of sulfobetaine containing detergents - hydrophobic, bile salt, and anionic detergents in a single molecule. Has a low molecular weight and high cellular micellar concentration. Product can be removed from protein solutions with a detergent removing gel or by dialysis.

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Pricing & Ordering

Quantity Price Action
2gm + $26.00
5gm + $59.00
10gm + $114.00
25gm + $203.00
100gm + $941.00
Product Documents


Zwitterionic detergent. Has all the advantages of sulfobetaine containing detergents-hydrophobic, bile salt, and anionic detergents in a single molecule. Has a low molecular weight and high cellular micellar concentration. Product can be removed from protein solutions with a detergent removing gel or by dialysis. Purity > 99% by HPLC. Conductivity < 25 micromhos in a 10% solution.

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  4. Rivnay, B., et al, Biochemistry, 21, 6922 (1982) 
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  9. Lundberg, B.J., J. Pharm. Sci., 83, 72 (1994) 
  10.  Radko, S.P., et al, Anal. Biochem., 223, 82 (1994) 
  11. Wetlaufer, D. B., et al, Protein Sci, 4, 1535 (1995)
  • CMC (H2O): ~ 8 mM (0.49%)
  • Aggregation Number (H2O): ~ 10dn/dc (H2O): 0.1323 mL/g
  • Purity:  98% pure by HPLC analysis.
  • pH (1% solution): 5-8
  • Solubility in water:  0.5M
  • Conductance (0.5 M solution): < 200 ?S
  • Absorbance of a 1% detergent solution: 340 nm: < 0.05 280 nm: < 0.1 260 nm: < 0.2