Pricing Availability Delivery Time Qty
Cat.No. 3172 - CHAPS | C32H58N2O7S | CAS No. 75621-03-3
Description: Zwitterionic detergent
Chemical Name: 3-[(3-Cholamidopropyl)-dimethylammonio]-1-propanesulfonate
Purity: ≥98%

Biological Activity

CHAPS is a zwitterionic nondenaturing detergent for solubilizing membrane proteins.

Technical Data

M. Wt 614.88
Formula C32H58N2O7S
Storage Store at RT
Purity ≥98%
CAS Number 75621-03-3
PubChem ID 90488808
Smiles O[C@@H]1CC[C@@]2(C)[C@@](C[C@@H](O)C3[C@@]([H])2C[C@H](O)[C@@]4(C)[C@]([H])3CCC4[C@]([H])(C)CCC(NCCC[N+](C)(C)CCCS([O-])(=O)=O)=O)([H])C1

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Preparing Stock Solutions

The following data is based on the product molecular weight 614.88. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.63 mL 8.13 mL 16.26 mL
5 mM 0.33 mL 1.63 mL 3.25 mL
10 mM 0.16 mL 0.81 mL 1.63 mL
50 mM 0.03 mL 0.16 mL 0.33 mL

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.

Product Datasheets

Certificate of Analysis / Product Datasheet
Select another batch:
Safety Datasheet


References are publications that support the products' biological activity.

Pasquali et al (1997) Preparative two-dimensional gel electrophoresis of membrane proteins. Electrophoresis 18 2573 PMID: 9527487

Banerjee et al (1995) Differential solubilization of lipids along with membrane proteins by different classes of detergents. Chem.Phys.Lipids 77 65 PMID: 7586093

If you know of a relevant reference for CHAPS, please let us know.

View Related Products by Target

Keywords: CHAPS, supplier, Zwitterionic, detergent, Reagents, Biochemicals, and, Molecular, Biology, Biochemicals, and, Molecular, Biology, Tocris Bioscience

Citations for CHAPS

Citations are publications that use Tocris products.

Currently there are no citations for CHAPS. Do you know of a great paper that uses CHAPS from Tocris? If so please let us know.

Reviews for CHAPS

There are currently no reviews for this product. Be the first to review CHAPS and earn rewards!

Have you used CHAPS?

Submit a review and receive an Amazon gift card.

$10US/$10CAN/€7/£6 gift card for a review without an image

$25US/$25CAN/€18/£15 gift card for a review with an image

*Offer only valid in the USA / Canada, UK and Europe

Submit a Review

Literature in this Area

New Product Guide

New Product Guide (Spring/Summer 2017)

Our new product guide highlights over 130 new products added to the Tocris Bioscience range during the first half of 2017.

  • 7-TM Receptors
  • Enzymes
  • Enzyme-Linked Receptors
  • Ion Channels
  • Nuclear Receptors
  • Transporters
  • Apoptosis
  • Cell Metabolism
  • Epigenetics
  • Fluorescent Imaging
  • Signal Transduction
  • Stem Cells