{"abstract":"The Drug Enforcement Administration (DEA) is establishing a specific listing and DEA Chemical Code Number for tert-butyl 4- oxopiperidine-1-carboxylate (also known as 1-boc-4-piperidone; and CAS Number: 79099-07-3) and its salts as a list I chemical under the Controlled Substances Act (CSA). Although 1-boc-4-piperidone is not specifically listed as a list I chemical of the CSA with its own unique Chemical Code Number, it has been regulated as a list I chemical in the United States as a carbamate of 4-piperidone, a list I chemical, since May 12, 2023. Therefore, DEA is simply amending the list of list I chemicals in its regulations to separately include 1-boc-4-piperidone.","action":"Final rule.","agencies":[{"raw_name":"DEPARTMENT OF JUSTICE","name":"Justice Department","id":268,"url":"https://www.federalregister.gov/agencies/justice-department","json_url":"https://www.federalregister.gov/api/v1/agencies/268","parent_id":null,"slug":"justice-department"},{"raw_name":"Drug Enforcement Administration","name":"Drug Enforcement Administration","id":116,"url":"https://www.federalregister.gov/agencies/drug-enforcement-administration","json_url":"https://www.federalregister.gov/api/v1/agencies/116","parent_id":268,"slug":"drug-enforcement-administration"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2025/10/02/2025-19349.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"1310","title":21}],"citation":"90 FR 47563","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"Effective date October 2, 2025.","disposition_notes":null,"docket_ids":["Docket No. DEA-1394"],"dockets":[{"supporting_documents":[],"agency_name":"DEA","documents":[{"comment_count":0,"comment_start_date":"2025-10-02","updated_at":"2025-10-02T18:03:50.710-04:00","comment_url":"https://www.regulations.gov/commenton/DEA-2025-0556-0001","allow_late_comments":false,"id":"DEA-2025-0556-0001","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"DEA-2025-0556","title":"Specific Listing for 1-boc-4-piperidone, a Currently Controlled List I Chemical"}],"document_number":"2025-19349","effective_on":"2025-10-02","end_page":47566,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2025/10/02/2025-19349.xml","html_url":"https://www.federalregister.gov/documents/2025/10/02/2025-19349/specific-listing-for-1-boc-4-piperidone-a-currently-controlled-list-i-chemical","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2025-19349?publication_date=2025-10-02","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2025-10-02/2025-19349/mods.xml","not_received_for_publication":null,"page_length":4,"page_views":{"count":495,"last_updated":"2026-08-25 08:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2025-10-02/pdf/2025-19349.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2025-19349.pdf?1759322729","publication_date":"2025-10-02","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2025/10/02/2025-19349.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[],"comments_count":0,"agency_id":"DEA","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=DEA-2025-0556","supporting_documents_count":0,"docket_id":"DEA-2025-0556","document_id":"DEA-2025-0556-0001","regulation_id_number":null,"title":"Specific Listing for 1-boc-4-piperidone, a Currently Controlled List I Chemical","checked_regulationsdotgov_at":"2025-10-04T00:55:03Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":47563,"subtype":null,"title":"Specific Listing for 1-boc-4-piperidone, a Currently Controlled List I Chemical","toc_doc":"Specific Listing for 1-boc-4-piperidone, a Currently Controlled List I Chemical","toc_subject":null,"topics":["Administrative practice and procedure","Drug traffic control","Exports","Imports","Reporting and recordkeeping requirements"],"type":"Rule","volume":90}