Date published: 2026-5-1

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Cesium hydroxide monohydrate (CAS 35103-79-8)

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CAS Number:
35103-79-8
Molecular Weight:
167.93
Molecular Formula:
CsOH•H2O
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Cesium hydroxide monohydrate, also referred to as cesium hydrate, is an inorganic compound. It manifests as a white, crystalline solid, readily soluble in water but insoluble in organic solvents. This versatile compound finds extensive utility in scientific research, laboratory experiments, and various industrial processes. In the realm of scientific research, cesium hydroxide monohydrate serves diverse applications. It is employed in the synthesis of cesium hydroxide monohydrate salts. Furthermore, it plays a vital role in the production of cesium hydroxide monohydrate-containing compounds, such as polymers and organometallic compounds. Additionally, cesium hydroxide monohydrate is instrumental in catalyst preparation for organic reactions, including the Suzuki-Miyaura and Heck reactions. Being a strong base, cesium hydroxide monohydrate exhibits the ability to accept protons from other molecules. When it reacts with an acid, the ensuing reaction generates cesium hydroxide monohydrate ions and hydroxide ions. The cesium hydroxide monohydrate ions are then available to interact with other molecules, while the hydroxide ions function to neutralize the acid.


Cesium hydroxide monohydrate (CAS 35103-79-8) References

  1. Cesium-catalyzed regioselective synthesis of trisubstituted heteroatom alkenes: a new strategy for the preparation of functional alkenes.  |  Chen, J., et al. 2015. Org Lett. 17: 2162-5. PMID: 25885546
  2. Synthesis and Investigation of 2,6-Bis(picrylamino)-3,5-dinitro-pyridine (PYX) and Its Salts.  |  Klapötke, TM., et al. 2016. Chemistry. 22: 8619-26. PMID: 27144716
  3. Application of cesium hydroxide monohydrate for ring opening polymerization of monosubstituted oxiranes: characterization of synthesized polyether-diols  |  , et al. (2021). Polymer Bulletin. volume 78,: pages 7301–7312.
  4. Hydrogen bonding. VI. Structural and infrared spectral analysis of lithium hydroxide monohydrate and cesium and rubidium hydroxide hydrates  |  Irene. Gennick and Kenneth M. Harmon. 1975,. Inorg. Chem. 14, 9,: 2214–2219.
  5. Hydrogen bonding Part 31. IR and thermodynamic evidence for unusual hydrogen bonding in the higher alkali metal hydroxide monohydrates  |  KM Harmon, GF Avci, DL Duffy, MS Janos - Journal of molecular structure, 1990 - Elsevier. January 1990,. Journal of Molecular Structure. Volume 216,: Pages 63-76.
  6. Palladium-Catalyzed Cross-Coupling Reactions of Substituted Aryl(dimethyl)silanols  |   and Scott E. Denmark, Michael H. Ober. December 2004. Volume346, Issue13-15. Volume346, Issue13-15: Pages 1703-1714.
  7. Application of Alkali Metal Hydroxides for the Preparation of gem‐Chlorophenylcyclopropanes  |  Andrzej Jończyk, et al. 2006. Synthetic Communications An International Journal for Rapid Communication of Synthetic Organic Chemistry. Volume 36, 2006 - Issue 23: Pages 3571-3579.
  8. Cesium-catalyzed highly regioselective synthesis of (Z)-vinylic selenosulfides via thioselenation of alkynes with unsymmetrical diorganoyl dichalcogenides  |  L Peng, R Li, Z Tang, J Chen, R Yi, X Xu - Tetrahedron, 2017 - Elsevier. 1 June 2017,. Tetrahedron. Volume 73, Issue 22,: Pages 3099-3105.
  9. Cesium hydroxide-catalyzed isomerization of terminal alkynes for the synthesis of O-allenes and N-allenes  |  Y Li, J Chen, R Qiu, X Wang, J Long, L Zhu, CT Au… - Tetrahedron …, 2015 - Elsevier. 7 October 2015,. Tetrahedron Letters. Volume 56, Issue 41,: Pages 5504-5507.
  10. A Rapid and Highly Efficient Method for the Synthesis of Benzofulvenes via CsOH-Catalyzed Condensation of Indene and Aldehydes  |   and Rongnan Yi, Jinyang Chen, Xueyan Wang, Zhiwu Liang, Xinhua Xu. March 22, 2018. Rongnan Yi, Jinyang Chen, Xueyan Wang, Zhiwu Liang, Xinhua Xu. Volume2018, Issue11: Pages 1347-1351.

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Cesium hydroxide monohydrate, 10 g

sc-239491
10 g
$51.00

Cesium hydroxide monohydrate, 50 g

sc-239491A
50 g
$200.00