6-ethynyl-4,4-dimethylthiochroman; (4,4-Dimethylthiochroman-6-yl)acetylene; 4,4-Dimethyl-6-ethynylthiochroman; 6-Ethynyl-4,4-dimethyl-1,2,3,4-tetrahydro[1]benzthiothiopyran;
6-ethynyl-4,4-dimethylthiochroman; (4,4-Dimethylthiochroman-6-yl)acetylene; 4,4-Dimethyl-6-ethynylthiochroman; 6-Ethynyl-4,4-dimethyl-1,2,3,4-tetrahydro[1]benzthiothiopyran;