I'm assuming you're referring to the research chemical 4-Methylmethcathinone, aka 4mmc, Mcat, plant food etc. As it is only an rc there is NO test for it, however it may bring up a false negative for amphetamines as it does feature similar structure points.
If you are concerned maybe look it up on wiki & a few drug forums, such as www.bluelight.ru, there is a few threads related to meow so I am sure you wil come across what you're looking for.
If you are concerned maybe look it up on wiki & a few drug forums, such as www.bluelight.ru, there is a few threads related to meow so I am sure you wil come across what you're looking for.