CAPS (3-(cyclohexylamino)propanesulfonic acid), white powder


Synonyms: 3-Cyclohexylaminopropanesulphonic acid3-Cyclohexylaminopropanesulfonic acid

0210143580 0210143583 0210143591 0210143525
IC10143525EA 35.77 USD
IC10143525 IC10143580 IC10143591 IC10143583
CAPS (3-(cyclohexylamino)propanesulfonic acid), white powder
CAPS (3-(Cyclohexylamino)propanesulphonic acid)

CAPS is a zwitterionic biological buffer which has minimal reactivity with enzymes or proteins and minimal salt effects. CAPS buffer is widely used in Western and immunoblotting experiments as well as protein sequencing and identification. The high pH of this buffer makes it useful for the transfer of proteins with a pI > 8.5.

CAPS has been used to study pH-dependent processes in enzymology and as an eluent buffer component in the separation of basic drugs by HPLC.

ΔpK/ΔT: - 0.0322

Very soluble in water (1 M - clear, colorless solution).

Caution: Research Use Only (RUO).

Formula: C₆H₁₁NH(CH₂)₃SO₃H
MW: 221.32 g/mol
MDL Number: MFCD00003837
CAS Number: 1135-40-6

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Specification Test Results

Identity Test Passes
FTIR Conforms to Standard
pH (1% aq soln) 5,0 - 6,3
pka 10,4 (25 °C) (Lit.)
Refractive Index 1,52
Sterilisation of Solutions Autoclave

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