Section 721.8920 - 4,6-Disubstituted pyrimidine (generic)(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified generically as 4,6-disubstituted pyrimidine (PMN P-99-1366) is subject to reporting under this section for the significant new use 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(f) .(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 (i) 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. 68 FR 15088 , Mar. 28, 2003