Section 721.11378 - 1H-Imidazole-1- propanenitrile,2-ethyl- ar-methyl-(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as 1H-imidazole-1- propanenitrile,2-ethyl- ar-methyl- (PMN P-18-358, CAS No. 568591-00-4) 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)Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(y)(1) . It is a significant new use to use the chemical substance for other than as a curing agent within carbon fiber reinforced plastics prepreg or a curing agent in industrial adhesives for electronics.(b)Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph (b).(1)Recordkeeping. Recordkeeping requirements as specified in § 721.125(a) through (c), and (i) are applicable to manufacturers and processors of this substance.(2)Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section.(3)Determining whether a specific use is subject to this section. The provisions of § 721.1725(b)(1) apply to paragraph (a)(2)(i) of this section. 85 FR 46555 , Aug. 3, 2020