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CHAPS

Name: CHAPS
Brand: MM

for biochemistry

Synonym(s):

CHAPS, 3-[(3-Cholamidopropyl)dimethylammonio] propane sulfonate), 3-[(3-Cholamidopropyl)dimethylammonio]-1-propanesulfonate

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About This Item

Empirical Formula (Hill Notation):

C₃₂H₅₈N₂O₇S

CAS Number:

75621-03-3

Molecular Weight:

614.88

NACRES:

NA.05

UNSPSC Code:

12352107

MDL number:

MFCD00012116

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Properties

Product Name

CHAPS (3-[(3-Cholamidopropyl)-dimethylammonio]-propane- sulfonate), for biochemistry

Quality Level

100

form

solid

mol wt

micellar avg mol wt 6150

aggregation number

pH

6 (100 g/L in H₂O)

CMC

6 mM (20-25°C)

mp

157 °C

transition temp

cloud point >100 °C

storage temp.

2-8°C

SMILES string

C[C@H](CCC(=O)NCCC[N+](C)(C)CCCS([O-])(=O)=O)[C@H]1CC[C@H]2[C@@H]3[C@H](O)CC4C[C@H](O)CC[C@]4(C)[C@H]3C[C@H](O)[C@]12C

InChI

1S/C32H58N2O7S/c1-21(8-11-29(38)33-14-6-15-34(4,5)16-7-17-42(39,40)41)24-9-10-25-30-26(20-28(37)32(24,25)3)31(2)13-12-23(35)18-22(31)19-27(30)36/h21-28,30,35-37H,6-20H2,1-5H3,(H-,33,38,39,40,41)/t21-,22?,23-,24-,25+,26+,27-,28+,30+,31+,32-/m1/s1

InChI key

UMCMPZBLKLEWAF-RFCNGIAKSA-N

Description

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.

Analysis Note

Assay (ex N): ≥ 99 %
Identity (IR-spectrum): passes test
Absorbance A (280 nm; 1 %; 1 cm; water): ≤ 0.1
Absorbance A (260 nm; 1 %; 1 cm; water): ≤ 0.1

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pictograms

GHS07

signalword

Warning

hcodes

H302

pcodes

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c