C2278

Sigma-Aldrich

CAPSO

≥99% anhydrous basis (titration)

Synonym(s):
3-(Cyclohexylamino)-2-hydroxy-1-propanesulfonic acid, CAPSO Free Acid
Empirical Formula (Hill Notation):
C9H19NO4S
CAS Number:
Molecular Weight:
237.32
Beilstein/REAXYS Number:
5939234
MDL number:
PubChem Substance ID:
NACRES:
NA.25
Pricing and availability is not currently available.

assay

≥99% anhydrous basis (titration)

form

crystalline powder

pH

2.5-4.0

useful pH range

8.9 - 10.3

pKa (25 °C)

9.6

solubility

water: 0.111 g/mL, clear, colorless

Featured Industry

Diagnostic Assay Manufacturing

SMILES string

OC(CNC1CCCCC1)CS(O)(=O)=O

InChI

1S/C9H19NO4S/c11-9(7-15(12,13)14)6-10-8-4-2-1-3-5-8/h8-11H,1-7H2,(H,12,13,14)

InChI key

INEWUCPYEUEQTN-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

CAPSO is a useful secondary standard buffer. Second dissociation constant pK2 value of CAPSO has been measured. Useful pH range for CAPSO is 8.9 - 10.3.

Application

CAPSO was used as biological buffer in the following studies:
  • To maintain pH 9 during water leach test for the analysis of high-carbon coal fly ash-soil mixtures.
  • Chemiluminescent in situ hybridization using soybean peroxidase-labeled peptide nucleic acid (PNA) probes. I
  • Preparation of planar bilayer lipid membranes.
It may be employed as buffer for the electrophoretic analyses in non-denaturing gels, to investigate macromolecular self-association of ADP-ribosyltransferase protein in solution.

Packaging

25, 100, 500 g in poly bottle
1 kg in poly bottle

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Evaluation of leaching protocols for testing of high-carbon coal fly ash-soil mixtures.
Becker J, et al.
Journal of Environmental Engineering (New York, N.Y.), 139(5), 642-653 (2012)
Second dissociation constants of 3-(cyclohexylamino)-1-propanesulfonic acid (CAPS) and 3-(cyclohexylamino)-2-hydroxy-1-propanesulfonic acid (CAPSO) from the temperatures 278.15 K to 328.15 K.
Roy RN, et al.
The Journal of Chemical Thermodynamics, 29(7), 749-756 (1997)
H Stender et al.
Applied and environmental microbiology, 67(1), 142-147 (2001-01-03)
A new chemiluminescent in situ hybridization (CISH) method provides simultaneous detection, identification, and enumeration of culturable Escherichia coli cells in 100 ml of municipal water within one working day. Following filtration and 5 h of growth on tryptic soy agar...
P I Bauer et al.
The Biochemical journal, 270(1), 17-26 (1990-08-15)
The macromolecular self-association of ADP-ribosyltransferase protein in solution was studied by several experimental techniques: quantitative gel filtration, electrophoretic analyses in non-denaturing gels, and cross-linking the enzyme protein with glutaraldehyde, dimethyl pimelimidate, dimethyl suberimidate, dimethyl 3,3'-dithiobisproprionimidate and tetranitromethane. The self-association of...
Andreas Missner et al.
The Journal of biological chemistry, 283(37), 25340-25347 (2008-07-12)
Several membrane channels, like aquaporin-1 (AQP1) and the RhAG protein of the rhesus complex, were hypothesized to be of physiological relevance for CO(2) transport. However, the underlying assumption that the lipid matrix imposes a significant barrier to CO(2) diffusion was...

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.