I tested 2 different blotters, both from different sheets (different art). Both are his house white xtal 100ug. The test turned yellow in Ehrlich Reagent test. I did 6 tabs of them one night. Seemed like great clean acid. Any ideas why it tested yellow? LSD analog? I have no clue. Its strange. I've tested his stuff from back in the day and it always turns purple.
Yellow acceptable as a positive test. High chance your Ehrlich's is old.