It is a colorless liquid, although older samples appear yellow.
The compound has been investigated as a reagent for cyclopropanation by the Simmons-Smith reaction, but diiodomethane and chloroiodomethane are preferred.
It also occurs naturally as the result of microbial action.
[1] Its critical point is at 367.85 °C and 6.3 MPa and refractive index is 1.6382 (20 °C, D).
This article about an organic halide is a stub.