Section 721.10066 - 1-Hexanesulfonic acid, (dimethylphenyl)-(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as 1-hexanesulfonic acid, (dimethylphenyl)- (PMN P-04-962; CAS No. 676143-36-5) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section.(2) The significant new uses are: (i)Release to water. Requirements as specified in § 721.90 (a)(1), (b)(1), and (c)(1) .(b)Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph. (1)Recordkeeping. Recordkeeping requirements as specified in § 721.125 (a), (b), (c), and (k) are applicable to manufacturers, importers, and processors of this substance.(2)Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section. 72 FR 53483 , Sept. 19, 2007