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21023

Sigma-Aldrich

Cesium trifluoroacetate

BioUltra, ≥99.0% (NT)

Synonym(s):

CsTFA, Trifluoroacetic acid cesium salt

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About This Item

Linear Formula:
CF3COOCs
CAS Number:
21907-50-6
Molecular Weight:
245.92
Beilstein/REAXYS Number:
4161420
MDL number:
MFCD00051304
UNSPSC Code:
12352103
PubChem Substance ID:
329751901

product line

BioUltra

assay

≥99.0% (NT)

form

solid

impurities

Insoluble matter, passes filter test

pH

9.0-10.5 (25 °C, 2 M in H2O)

mp

114-116 °C (lit.)

solubility

H2O: 2 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤500 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤10 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

2 M in H2O

UV absorption

λ: 260 nm Amax: 0.09
λ: 280 nm Amax: 0.04

SMILES string

[Cs+].[O-]C(=O)C(F)(F)F

InChI

1S/C2HF3O2.Cs/c3-2(4,5)1(6)7;/h(H,6,7);/q;+1/p-1

InChI key

RJYSYRSELCQCSO-UHFFFAOYSA-M

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Other Notes

Isolation of proteoglycans using phenol extraction and isopycnic centrifugation[1]

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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J A McBain et al.
Analytical biochemistry, 188(1), 203-213 (1990-07-01)
A procedure for the rapid isolation of heparan sulfate proteoglycans from Zwittergent lysates of cultured cells and cetylpyridinium precipitates of culture medium is described. After removal of most nonglycosylated proteins by phenol extraction, the proteoglycans are fractionated and isolated by

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