What is "ortho-dot"

Ortho-DOT, or 4,5-di methoxy-2- methyl thio amphetamine, is a lesser-known psychedelic drug. Ortho-DOT was first synthesized by Alexander Shulgin. In his book PiHKAL (Phenethylamines i Have Known And Loved), neither the dosage nor the duration are known. Ortho-DOT produces few to no effects. Very little data exists about the pharmacological properties, metabolism, and toxicity of Ortho-DOT.