There are two isomers, 3-T-TRIS and 4-T-TRIS, each similar in structure to trisescaline with a sulfur atom in a place of a different oxygen atom.
Two variants of the compound, 3-T-TRIS and 4-T-TRIS, exist, both sharing a resemblance to trisescaline but featuring a sulfur atom in place of an oxygen atom at distinct positions.