Have you tried using DiI??
In article <4gkcgu$npo at mserv1.dl.ac.uk>, "D.J.Brownlee" <djab at soton.ac.uk> writes:
>From djab Fri Feb 23 12:23:14 1996
>Subject: Neuronal Tracing dyes
>To: neuro-sci at dl.ac.uk>Date: Fri, 23 Feb 1996 12:23:14 +0000 (GMT)
>From: "D.J.Brownlee" <djab at soton.ac.uk>
>X-Mailer: ELM [version 2.4 PL23]
>>I am currently trying to label invertebrate neurones with various
>dyes-- DiA, DiO, DiQ, in addition to fluorescein have all been
>mentioned as possible candidates. Are there other probes also??
>Who, other than Molecular Probes supply these reagents?
>I've come across a company from Austria called LAMBDA GMBH, but do
>not have address, tel. etc. details for them.
>>Can anyone help.
>>djab at soton.ac.uk>