| 3719 | Tetrahydromethylphthalic anhydride1,3-Isobenzofurandione, 3a,4, 4-Methyl tetrahydrophthalic anhydride, AC-methyl, Methyltetrahydroisobenzofurandione, Methyltetrahydrophthalicanhyrid, Mthpa, Mthpa-600, Mthpa-eg, Tetrahydromethyl-1,3-isobenzofurandione, Tetrahydromethyl-3-isobenzofurandione | | Act on Confirmation, etc. of Release Amounts of Specific Chemical Substances in the Environment and Promotion of Improvements to the Management Thereof | Class I Designated Chemical Substances | | Submission of a report of the amount of transfer and emission to the environment (if more than 1t per year) | Ministry of Economy, Trade and Industry | | |