SynaptoGreen C3 is similar to SynaptoGreen (70020), except that the lipophilic tail is one carbon shorter and also the hydrophilic end is a trimethylammonium group. Thus SynaptoGreen C3 is slightly more water soluble than SynaptoGreen.
Please also see the fixable nerve terminal dye AM1-43 (70024).
Flyer (PDF): Nerve Terminal Dyes
MSDS (PDF): MSDS 70023