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P8203

Sigma-Aldrich

PIPES

BioXtra, ≥99% (titration)

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Synonym(s):
1,4-Piperazinediethanesulfonic acid, Piperazine-1,4-bis(2-ethanesulfonic acid), Piperazine-N,N′-bis(2-ethanesulfonic acid)
Empirical Formula (Hill Notation):
C8H18N2O6S2
CAS Number:
Molecular Weight:
302.37
Beilstein/REAXYS Number:
817713
EC Number:
MDL number:
PubChem Substance ID:

product line

BioXtra

Quality Level

assay

≥99% (titration)

form

powder

impurities

Insoluble matter, passes filter test

ign. residue (900°C)

≤0.5% (as SO4)

loss

≤0.5% loss on drying, 110°C

useful pH range

6.1-7.5

pKa (25 °C)

6.8

mp

>300 °C (lit.)

solubility

1 M NaOH: 0.5 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤0.2%

cation traces

Al: ≤0.005%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.005%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.1%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

absorption

≤0.1 at 260 in 1 M NaOH at 0.5 M
≤0.1 at 280 in 1 M NaOH at 0.5 M

application(s)

diagnostic assay manufacturing

SMILES string

OS(=O)(=O)CCN1CCN(CC1)CCS(O)(=O)=O

InChI

1S/C8H18N2O6S2/c11-17(12,13)7-5-9-1-2-10(4-3-9)6-8-18(14,15)16/h1-8H2,(H,11,12,13)(H,14,15,16)

InChI key

IHPYMWDTONKSCO-UHFFFAOYSA-N

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1 of 4

This Item
P1851P675780635
vibrant-m

P8203

PIPES

Premium Grade
vibrant-m

P1851

PIPES

Premium Grade
vibrant-m

P6757

PIPES

-
vibrant-m

80635

PIPES

Premium Grade
product line

BioXtra

product line

-

product line

-

product line

BioXtra

Quality Level

400

Quality Level

400

Quality Level

400

Quality Level

100

application(s)

diagnostic assay manufacturing

application(s)

diagnostic assay manufacturing

application(s)

diagnostic assay manufacturing

application(s)

-

form

powder

form

crystalline powder

form

crystalline powder

form

powder

solubility

1 M NaOH: 0.5 M at 20 °C, clear, colorless

solubility

1 M NaOH: 20 + 80 mL g, clear, colorless, soluble

solubility

1 M NaOH: 20 + 80 mL g, clear, colorless

solubility

0.1 M NaOH: 0.1 M at 20 °C, clear, colorless

General description

PIPES is a member of the ethanesulfonic acid buffer series, first introduced by Good et al., developed to meet certain criteria: midrange pKa, maximum water solubility and minimum solubility in all other solvents, minimal salt effects, minimal change in pKa with temperature, chemically and enzymatically stable, minimal absorption in visible or UV spectral range and easily synthesized. Since its pKa at 37 °C is near physiological pH, PIPES has applications in cell culture work.

Application

Protocols have been reported on the use of PIPES for separation of glyoxylated RNA in agarose gels, nuclease S1 mapping of RNA, and in ribonuclease protection assay protocols. PIPES has been used as a buffer in glutaraldehyde fixation of tissue samples.,
PIPES has been utilized in protein crystallization., The use of PIPES in the reconstitution of dissociated tubulin
α and β subunits after their resolution on immunoadsorbent gels has been described. PIPES has been recommended for use in buffers for the in vitro study of caspases 3, 6, 7, and 8.
A published study demonstrated the usefulness of PIPES as a non-metal ion complexing buffer in such applications as protein assays. PIPES has been used in cell culture for such applications as the engineering of a thermostable mutant membrane protein in Escherichia coli.

Quality

Trace elemental analyses have been performed on the BioXtra PIPES; Certificate of Analysis provides lot-specific results. BioXtra PIPES is for applications which require tight control of elemental content.

Linkage

Sigma-Aldrich offers BioPerformance Certified cell culture-tested PIPES (Product No. P1851) as well as several different salts for convenience in buffer preparation.

Preparation Note

Buffers can be prepared by adding a solution of base to PIPES free acid to titrate to the appropriate pH, or by mixing equimolar solutions of the monosodium salt and the disodium salt to titrate to the appropriate pH.

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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PIPPS A non-metal complexing, zwitterionic buffer with mixed-mode dissociation constants of pKa1 = 3.73 and pKa2 = 7.96 (100 mM, 25°C) PIPPS has no interference at wavelengths longer than 240 nm.

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PIPPS

PIPES, disodium salt

SAFC

RES0704P-A7

PIPES, disodium salt

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Sigma-Aldrich

30326

EMPIGEN® BB detergent

Y Zhou et al.
The Journal of biological chemistry, 275(10), 6975-6979 (2000-03-04)
The poor stability of membrane proteins in detergent solution is one of the main technical barriers to their structural and functional characterization. Here we describe a solution to this problem for diacylglycerol kinase (DGK), an integral membrane protein from Escherichia
Sambrook , J. and Russell, D.W.
Molecular Cloning: A Laboratory Manual, 7-7 (2001)
S Haviernick et al.
Journal of microscopy, 135(Pt 1), 83-88 (1984-07-01)
It is suggested that the use of Hanks' + pipes + sucrose buffers, in combination with glutaraldehyde and osmium tetroxide fixatives, represent an excellent mode of preparation of fresh and cultured peripheral blood leucocytes, not only for transmission electron microscopy
K E Loesser et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 34(11), 1477-1485 (1986-11-01)
We have modified the Lowicryl K4M low-temperature dehydration and embedding procedure for immunoelectron microscopy to provide improved ultrastructural detail and facilitate the localization of actin and tubulin in isolated rat adrenocortical cells, chick spinal cord with attached dorsal root ganglia
A Giraudel et al.
Biochemistry, 37(24), 8724-8734 (1998-06-24)
The dissociation and separation of the tubulin alpha- and beta-subunits have been achieved by binding alpha-subunits to an immunoadsorbent gel and selectively inducing release of free beta-subunits. The immunoadsorbent gel was prepared by coupling the monoclonal antibody YL1/2 to Sepharose

Protocols

Cell staining can be divided into four steps: cell preparation, fixation, application of antibody, and evaluation.

TE Buffer; Elution Buffer; 10x Ligation Buffer; 0.5 M PIPES Buffer; Inoue Transformation Buffer

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