2-methyl-2,3-dihydro-4H-thiochromen-4-one 4H-1-benzothiopyran-4-one, 2,3-dihydro-2-methyl- InChI=1/C10H10OS/c1-7-6-9(11)8-4-2-3-5-10(8)12-7/h2-5,7H,6H2,1H