A sample sold as) in Miami, FL that tested as 4-ANPP and some mystery substance. I couldn't find any information on this chemical, but based off the reagent tests, only Marquis turned orange, which is the same reaction for, an extremely potent that has been responsible for numerous. I have no idea how potent this substance is in comparison–but it appears to not be a at all.
According to Wikipedia, NPP is a derivative of 4-piperidinone and is used as an intermediate in the manufacture of chemicals and pharmaceutical drugs such as fentanyl. This sample also contains an unidentified substance.
Just a reminder, that I do not do these lab tests. Send your samples to escstasydata.org. If you are not local to the NYC area, I can/will not reagent test your substances. These posts are for educational purposes, only#overdoseprevention