[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of April 1, 2006]
From the U.S. Government Printing Office via GPO Access
TITLE 21--FOOD AND DRUGS
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN
PART 173_SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN
CONSUMPTION--Table of Contents
Subpart C_Solvents, Lubricants, Release Agents and Related Substances
Sec. 173.220 1,3-Butylene glycol.
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.
(2) Specific gravity at 20/20 [deg]C: 1.004 to 1.006.
(3) Distillation range: 200[deg]-215 [deg]C.
(b) It is used in the minimum amount required to perform its
(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.
Additives that reference this regulation:
Source: U.S. Code of Federal Regulations - CFR Title 21, Part 173, Section 220
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