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经验公式(希尔记法):
C8H17NO3S
化学文摘社编号:
分子量:
207.29
UNSPSC Code:
12161700
NACRES:
NA.25
PubChem Substance ID:
EC Number:
203-115-6
Beilstein/REAXYS Number:
2967601
MDL number:
InChI key
MKWKNSIESPFAQN-UHFFFAOYSA-N
InChI
1S/C8H17NO3S/c10-13(11,12)7-6-9-8-4-2-1-3-5-8/h8-9H,1-7H2,(H,10,11,12)
SMILES string
OS(=O)(=O)CCNC1CCCCC1
product line
BioXtra
assay
≥99.0% (titration)
form
powder
impurities
≤0.0005% Phosphorus (P), ≤0.1% Insoluble matter
ign. residue
≤0.1%
pH
3.0-5.0 (0.5 M in H2O)
useful pH range
8.6-10.0
pKa (25 °C)
9.3
solubility
H2O: 0.5 M, clear, colorless
anion traces
chloride (Cl-): ≤0.05%, sulfate (SO42-): ≤0.05%
cation traces
Al: ≤0.0005%, Ca: ≤0.001%, Cu: ≤0.0005%, Fe: ≤0.0005%, K: ≤0.005%, Mg: ≤0.0005%, NH4+: ≤0.05%, Na: ≤0.01%, Pb: ≤0.001%, Zn: ≤0.0005%
absorption
≤0.05 at 280 in H2O at 0.5 M, ≤0.08 at 260 in H2O at 0.5 M
application(s)
diagnostic assay manufacturing
Quality Level
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General description
CHES (2-(Cyclohexylamino) ethane sulfonic acid) is a derivative of amino acid taurine. It serves as a standard physiological buffer in the pH range of 8.5-9.5.
Application
CHES may be used:
- for pH adjustments and as a assay buffer in catechol oxidase activity measurements(32)
- as a buffer in electron paramagnetic resonance (EPR) spectroscopy and kinetic measurements(33)
- as a buffer for soil solution equivalent (SSE) yeast dextrose medium for screening pH optima for growth of Aridibacter nitratireducens A24_SHP-5_238T(34)
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Buffers for the physiological pH range: Acidic dissociation constants of zwitterionic compounds (ACES and CHES) in water from 5 to 55? C
Roy RN, et al.
Journal of Chemical and Engineering Data, 42(1), 41-44 (1997)
Jun Yang et al.
Langmuir : the ACS journal of surfaces and colloids, 24(18), 10265-10272 (2008-08-20)
A universal nitric oxide (NO) generating surface is assembled via Layer-by-Layer (LbL) deposition of sodium alginate (Alg) and organoselenium modified polyethyleneimine (SePEI) on quartz and polymeric substrates. The immobilized SePEI species is capable of catalytically decomposing S-nitrosothiol species (RSNO) to
Scott A Sarver et al.
Journal of chromatography. A, 1229, 268-273 (2012-02-11)
Several glycosphingolipids were labeled with the fluorphore Bodipy-Fl and analyzed using capillary electrophoresis with laser-induced fluorescence detection. GM1-, LacCer-, and Cer-Bodipy-Fl were prepared through acylation using the N-hydroxysuccinimide ester of Bodipy-Fl. Several other glycosphingolipids including GT1a-, GD1a-, GM2-, GM3-, GD3-
David G McLaren et al.
Electrophoresis, 24(17), 2887-2895 (2003-09-16)
A systematic evaluation of continuous flow-counterbalanced capillary electrophoresis for microscale preparative applications is presented. The success of the technique was found to depend on the specific nature of the analyte and background electrolyte and was most heavily influenced by factors
P Doble et al.
Electrophoresis, 19(12), 2257-2261 (1998-10-07)
The suitability of relatively slow (low absolute value of mobility) coanionic buffers in background electrolytes (BGEs) for indirect photometric detection of anions by capillary electrophoresis was investigated. As a model system, 2-(cyclohexylamino)ethanesulfonic acid (CHES) was used to buffer the indirect
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