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03140 Sigma-Aldrich

Copper(I) iodide

purum, ≥99.5%

Synonym: Cuprous iodide

  • CAS Number 7681-65-4

  • Empirical Formula (Hill Notation) CuI

  • Molecular Weight 190.45

  •  EC Number 231-674-6

  •  MDL number MFCD00010978

  •  eCl@ss 38150105

  •  PubChem Substance ID 57646720

  •  NACRES NA.22

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Properties

Related Categories Catalysis and Inorganic Chemistry, Chemical Synthesis, Chemicals for the synthesis of candidate COVID-19 treatments, Copper Catalysts, Favipiravir More...
Quality Level   200
vapor pressure   10 mmHg ( 656 °C)
grade   purum
assay   ≥99.5%
reaction suitability   reagent type: catalyst
mp   605 °C (lit.)
density   5.62 g/mL at 25 °C (lit.)
anion traces   sulfate (SO42-): ≤5000 mg/kg
cation traces   Fe: ≤50 mg/kg
SMILES string   [Cu+].[I-]
InChI   1S/Cu.HI/h;1H/q+1;/p-1
InChI key   LSXDOTMGLUJQCM-UHFFFAOYSA-M

Description

Application

Copper(I) iodide, in combination with cesium fluoride, can be used to promote Stille coupling reaction. It can also mediate the reaction between arenethiolate ions and different
nonactivated aryl iodides in hexamethylphosphoric triamide to form aryl sulfides.
Copper(I) iodide can be used to catalyze:
• Thioetherification of aryl halides using thiourea and alkyl bromides in wet polyethylene glycol and in the presence of potassium carbonate as a base.
• Reaction between acetylenes and metal halides in diethylamine to form transition metal alkynyl complexes.
• Reaction between terminal alkynes with phenylchalcogenyl halides to form alkynyl selenides, sulfides and tellurides.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Target organs 
Respiratory system
Personal Protective Equipment 
RIDADR 
UN 3077 9 / PGIII
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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