CHAPS-RO

CHAPS

98% (from N), suitable for dialysis, solubility: >50% (Aqueous solutions)

• Synonym(s): CHAPS, 3-[(3-cholamidopropyl)dimethyl-ammonio]-1-propane sulfonate, 3-[(3-cholamidopropyl)dimethyl-ammonio]-1-propane sulfonate, zwitterionic, Cholamidopropyl-dimethyl-ammonio]-1-propane sulfonate, 3-3-, zwitterionic, cholamidopropyl-dimethyl-ammonio]-1-propane sulfonate, 3-3-, 3-[(3-Cholamidopropyl)dimethylammonio]-1-propanesulfonate
• Empirical Formula (Hill Notation): C₃₂H₅₈N₂O₇S
• CAS Number: 75621-03-3
• Molecular Weight: 614.88
• UNSPSC Code: 12161900
• MDL number: MFCD00012116
• NACRES: NA.54

Properties

• description: zwitterionic
• assay: 98% (from N)
• form: crystals
• mol wt: micellar avg mol wt 6150, 614.88 g/mol (anhydrous basis)
• packaging: pkg of 10 g (10810118001), pkg of 50 g (10810126001)
• manufacturer/tradename: Roche
• aggregation number: 10
• technique(s): dialysis: suitable
• CMC: 4 mM, 6 mM (20-25°C)
• transition temp: cloud point >100 °C

Description

General description

3-[(3-Cholamidopropyl)dimethyl-ammonio]-1-propane sulfonate

Application

CHAPS is a nondenaturing zwitterionic detergent for membrane biochemistry.
Useful for solubilizing membrane proteins and breaking protein-protein interactions. CHAPS′ small micellar molecular weight (6,150) and high critical micelle concentration (6-10 mM) allow it to be removed from samples by dialysis. It is also suitable for protein solubilization for isoelectric focusing and two-dimensional electrophoresis. CHAPS is commonly used for non-denaturing (without urea) IEF and has been shown to give excellent resolution of some subcellular preparations and plant proteins. Concentrations between 2-4% (w/v) are typically used in an IEF gel.

Solubilization of membrane proteins. Combines the properties of both the sulfobetaine-type and bile-acid detergents.

Physical form

Crystals

Preparation Note

Working concentration: PAGE: 6.5 to 13 mM
Storage conditions (working solution): Do not store in solution, because precipitation may occur.

Other Notes

For life science research only. Not for use in diagnostic procedures.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H302 - H315 - H319
• pcodes: P264 - P270 - P280 - P301 + P312 + P330 - P337 + P313 - P501
• Hazard Classifications: Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable