Mol. Mass:

273.413 g/mol

Other common names

 4-Methoxyphencyclidine, methoxydine


 definitive crystal form, medium sized shards.


This 4-methoxy isomer of PCP is a synthetic dissociative, producing effects remarkably similar to that of PCP and Ketamine. It was first documented in 2008, being sold in the UK under the name CBAY, and is thought to be a product of rational drug design. Unlike its isomer, 3-MeO-PCP, which holds 5 times the potency of PCP, 4-MeO-PCP’s potency (by weight) is equal to its derivative. 4-MeO-PCP’s altered binding profile sets it apart from PCP in many ways, the most notable being its significantly higher affinity as a NMDA antagonist* while maintaining its potency as a reuptake inhibitor of dopamine.



Due to the fact that both ketamine and PCP fall in the 3rd schedule, it cannot be tried under the Federal Analogue act which only pertains to the first 2 schedules. Even with this fact, there are still a great deal of questions that have yet to be answered, especially with the federal analogue act as it is written in an ambiguous manner that has proven to be anything but concrete. Until a few cases are tried involving a great deal of these uncommon chemicals, there will be no sure fire answer. The way the laws are made, anything that is sold to alter ones state of mind and is anywhere near a chemical that is scheduled is considered illegal. Selling the chemical under any false name or illustrating its use can also land you in the slammer so it should be treated with great care.