The Journal of the American Chemical Society is abstracted and indexed in Chemical Abstracts Service, Scopus, EBSCOhost, Thomson-Gale, ProQuest, PubMed, Web of Science, and SwetsWise. According to the Journal Citation Reports, it has an impact factor of 14.695 for 2018.
https://www.letpub.com/index.php page=journalapp&view=detail&journalid=9&xuanxiangk_id=2 and https://pure.york.ac.uk/portal/en/journals/abstracts-of-papers-of-the-american-chemical-society(b24c2bd6-c7b0-4f1d-bf36-5f1525f0e097)/publications.html
It can be said that it is a journal with its own impact factor and publications