Butylone contains a methyl substitution at RN, a substitution which happens to be shared with MDEA, ethylone, 4-MEC, and certain other stimulants and entactogens. Also, butylone includes substitutions at R3 and R4 of the phenyl ring with oxygen groups. These oxygen groups are integrated right into a methylenedioxy ring via https://citychemiststore.com/product/buy-fentanyl-pills-online/