[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR173.220]
[Page 136]
TITLE 21--FOOD AND DRUGS
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN
SERVICES (CONTINUED)
PART 173 SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN
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
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.
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