Merck, 42364-100MG, 1,1′-Dioctadecyl-3,3,3′,3′-tetramethylindocarbocyanine perchlorate

General description
DiI is a Dye Aye, a chemical with CAS number 41085-99-8. It is a fluorescent lipophilic cationic indocarbocyanine dye, which is usually made as a perchlorate salt. Mostly used for scientific staining purposes, such as single molecule imaging, fate mapping and neuronal tracing (as DiI is retained in the lipid bilayers).
Application
1,1′-Dioctadecyl-3,3,3′,3′-tetramethylindocarbocyanine perchlorate is used for the following applications:
Preparation of Dil solution
fluorescent membrane dye
Di-I Staining

Biochem/physiol Actions
Lipophilic carbocyanine dye used primarily for optical recordings of membrane voltage and for studies of membrane fluidity. Retrograde stain for neurons; provides intense, long-lasting staining of live neurons in vivo and in vitro.
Other Notes
Lipophilic fluorescent probe for studying membranes