27 C.F.R. § 21.49 Formula No. 23–H.
Title 27 - Alcohol, Tobacco Products and Firearms
(a) Formula. To every 100 gallons of alcohol add:
Eight gallons of acetone, U.S.P., and 1.5 gallons of methyl isobutyl ketone. (b) Authorized uses. (1) As a solvent:
111. Hair and scalp preparations. 113. Lotions and creams (hand, face, and body). 210. External pharmaceuticals, not U.S.P. or N.F. 220. Rubbing alcohols. 410. Disinfectants, insectides, fungicides, and other biocides. 450. Cleaning solutions (including household detergents). (2) Miscellaneous uses:
812. Product development and pilot plant uses (own use only).
Title 27: Alcohol, Tobacco and Firearms
PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM
Subpart D—Specially Denatured Spirits Formulas and Authorized Uses
§ 21.49 Formula No. 23–H.