Clinical data
ATC code none
Legal status
Legal status
CAS Number 1391497-81-6 YesY
Chemical and physical data
Formula C18H20INO4
Molar mass 441.259 g/mol
3D model (Jmol) Interactive image

25I-NB34MD (NB34MD-2C-I) is a derivative of the phenethylamine hallucinogen 2C-I, which acts as a potent partial agonist for the human 5-HT2A receptor, and presumably has similar properties to 2C-I.[1] It has a binding affinity of 0.67nM at the human 5-HT2A receptor, maing it several times weaker than its positional isomer 25I-NBMD and a similar potency to 25I-NBF.[2][3]


25I-NB34MD is illegal in Hungary,[4] Japan,[5] and Sweden.[6]


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