27 C.F.R. § 21.67 Formula No. 38–D.
Title 27 - Alcohol, Tobacco Products and Firearms
(a) Formula. To every 100 gallons of alcohol add:
Two and one-half pounds of menthol, U.S.P., and 2.5 gallons of formaldehyde solution, U.S.P. (b) Authorized uses. (1) As a solvent:
131. Dentifrices. 132. Mouth washes. (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
§ 21.67 Formula No. 38–D.