subchapter_subject: "FOOD FOR HUMAN CONSUMPTION (CONTINUED)"
part_code: "173"
part_subject: "SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN CONSUMPTION"
subpart_code: "C"
subpart_subject: "Solvents, Lubricants, Release Agents and Related Substances"
section_number: "173.220"
section_subject: "1,3-Butylene glycol."
cfr_reference: "21 CFR 173.220"
title_name: "Title 21"
title_subject: "Food and Drugs"
parts_covered: "Parts 170 to 199"
revised_date: "Revised as of April 1, 2019"
publication_date: "As of April 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
1,3-Butylene glycol (1,3-butanediol) may be safely used in food in accordance with the following prescribed conditions:
(a)The substance meets the following specifications:
(1)1,3-Butylene glycol content: Not less than 99 percent.
(b)It is used in the minimum amount required to perform its intended effect.
(c)It is used as a solvent for natural and synthetic flavoring substances except where standards of identity issued under section 401 of the act preclude such use.