25g-nbome 25g-nbome 25g-nbome (nbome-2c-g) is a derivative of the phenethylamine hallucinogen 2c-g, which acts as a highly potent partial agonist for the human 5-ht2a receptor. 25g-nbomeclinical dataatc codenonelegal statuslegal status uk: class a identifiers iupac name 2-(2,5-dimethoxy-3,4-dimethylphenyl)-n-ethanamine cas number1354632-65-7pubchem cid118796428chemspider29341725 yunii87kxl8u1l5chemical and physical dataformulac20h27no3molar mass329.4 g·mol−13d model (jsmol)interactive image smiles cc1=c(c=c(c(=c1c)oc)ccncc2=cc=cc=c2oc)oc inchi inchi=1s/c20h27no3/c1-14-15(2)20(24-5)16(12-19(14)23-4)10-11-21-13-17-8-6-7-9-18(17)22-3/h6-9,12,21h,10-11,13h2,1-5h3key:vdaumfacimntda-uhfffaoysa-n legality sweden the riksdag added 25g-nbome to narcotic drugs punishments act under swedish schedule i ("substances, plant materials and fungi which normally do not have medical use") as of january 16, 2015, published by medical products agency (mpa) in regulation lvfs 2014:11 listed as 25g-nbome, and 2-(2,5-dimetoxi-3,4-dimetylfenyl)-n-(2-metoxibensyl)etanamin. united kingdom this substance is a class a drug in the united kingdom as a result of the n-benzylphenethylamine catch-all clause in the misuse of drugs act 1971.