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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

Chloroiodomethane | CAS 593-71-5

A mixed chloroiodo one-carbon reagent used in Simmons–Smith-type cyclopropanation chemistry, with different carbon–halogen bonds and a qualification focus on halomethane composition, stabilisation and water compatibility.

CAS593-71-5
Molecular formulaCH2ClI
Molecular weight176.38 g/mol

Product overview

Both halogens are bonded to the same methylene carbon. This distinguishes chloroiodomethane from diiodomethane and chlorobromomethane, even though these reagents can appear in related discussions of methylene transfer. Its use with organozinc chemistry is documented for cyclopropanation. External grades include copper-stabilised material, so the stabiliser must be confirmed when selecting a source. The assay should describe the required halomethane and related volatile components, while water should be considered separately for the planned reagent system.

Chemical identity

Chemical name
Chloroiodomethane
CAS number
593-71-5
Molecular formula
CH2ClI
Molecular weight
176.38 g/mol

Application context

Simmons–Smith-type chemistry uses chloroiodomethane as a methylene source in preparing cyclopropane structures from alkenes. The role is associated with the selected organozinc reagent system and substrate, rather than a universal reaction outcome. Procurement should state the required stabilised form and review whether copper contact is compatible with the project. For moisture-sensitive reagent preparation, agree a suitable water method and limit. Distinguish the neat reagent from a solution and specify the concentration basis if a solution is requested.

Chemistry and synthetic role

CH2ClI contains one C–Cl and one C–I bond on a single carbon.

Quality review

Separate halomethanes

Specify GC resolution for chloroiodo, diiodo and other relevant halomethanes.

Confirm copper stabilisation

Ask whether copper or another stabiliser is present and how it is supplied.

Control water independently

Define water requirements for the intended organozinc chemistry.

Preparing a specification

Specify CH2ClI, CAS, halomethane-resolved assay, stabiliser identity and process-appropriate water; state solvent and concentration for solutions.

Packaging and storage

Packaging and net weight are agreed for the selected grade, order quantity and destination. Check the actual supplier SDS and label for storage and transport requirements.

Documentation

Request a batch COA, SDS and the analytical methods for the acceptance criteria below. Confirm which supporting chromatograms and identity data are available from the selected manufacturer.

Procurement questions

Can diiodomethane be ordered under this CAS?

No; it is a different compound and must be qualified separately.

Is copper part of the molecular formula?

No; it is an external stabilisation component in some grades.

Does the organic assay describe water?

A separate water result is needed where the process is sensitive.

Technical sources
  1. PubChem CID 11644NCBI / PubChem
  2. ChloroiodomethaneNIST Chemistry WebBook
  3. Chloroiodomethane A11032Thermo Fisher Scientific
  4. Named reactions in organic synthesisThermo Fisher Scientific