subchapter_subject: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_code: "573"
part_subject: "FOOD ADDITIVES PERMITTED IN FEED AND DRINKING WATER OF ANIMALS"
subpart_code: "B"
subpart_subject: "Food Additive Listing"
section_number: "573.225"
section_subject: "1,3-Butylene glycol."
cfr_reference: "21 CFR 573.225"
title_name: "Title 21"
title_subject: "Food and Drugs"
parts_covered: "Parts 500 to 599"
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"
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The food additive 1,3-butylene glycol (1,3-butanediol) may be safely used in accordance with the following prescribed conditions:
(a)It complies with the specifications in § 173.220(a) of this chapter.
(b)It is intended for use in swine feed as a source of energy.
(c)It is to be thoroughly mixed into feed at levels not to exceed 9 percent of the dry matter of the total ration.
(d)1,3-Butylene glycol should be mixed in feed with equipment adapted for the addition of liquids, and the feed should be mixed not less than 5 minutes after its addition.