Thanks for more response than I dared to hope for! I Think I might already have some of the dyes mentioned. I will be doing some tests soon.
I requested a new quote for SDA3057. They keep making it more expensive.
For chlorophyll, I always start with packages of baby spinach leaves from the suoermarket. I have been using 92% Isopropyl alcohol. I add the chlorophyll at 200-ng per mole of AgNO3
It may be better to add befor preipitation. Also IPA may not be the best solvent
Bill.
Bill