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516988

Sigma-Aldrich

Cesium hydroxide monohydrate

99.95% trace metals basis

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Synonym(s):
2-Aminoethyl 2-methylacrylate hydrochloride, 2-Aminoethyl methacrylate hydrochloride, Methacrylic acid, 2-aminoethyl ester, hydrochloride
Empirical Formula (Hill Notation):
HCsO · H2O
CAS Number:
35103-79-8
Molecular Weight:
167.93
EC Number:
244-344-1
MDL number:
MFCD00010964
UNSPSC Code:
12352302
PubChem Substance ID:
24873911
NACRES:
NA.23

Quality Level

100

Assay

99.95% trace metals basis

form

powder

impurities

≤550.0 ppm Trace Metal Analysis

mp

272 °C (lit.)

density

3.68 g/mL at 25 °C (lit.)

SMILES string

[Cs+].[O-][H].[H]O[H]

InChI

1S/Cs.H2O/h;1H2/q+1;/p-1

InChI key

HUCVOHYBFXVBRW-UHFFFAOYSA-M

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General description

Cesium hydroxidemonohydrate is commonly used as a catalyst in many organic transformations andas an initiator in polymerization reactions.

Application

Cesium hydroxide monohydrate can be used as a catalyst in the synthesis of:
  • O-allenes and N-allenes via isomerization of terminal alkynes. This method allows the efficient synthesis of allenes in high yields under mild conditions with wide functional group tolerance.
  • Unsymmetrical bis-allyl ethers consist of an E-allylic unit and a terminal allylic unit via dimerization of Baylis-Hillman adducts.
Cesium hydroxide monohydrate can also be used as an initiator for the heterogeneous ring-opening polymerization of monosubstituted oxiranes.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Skin Corr. 1A

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

非剧毒-急性毒性1
危险化学品

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