[Code of Federal Regulations] [Title 27, Volume 1] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 27CFR21.67] [Page 545] TITLE 27--ALCOHOL, TOBACCO PRODUCTS AND FIREARMS CHAPTER I--ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY PART 21_FORMULAS FOR DENATURED ALCOHOL AND RUM--Table of Contents Subpart D_Specially Denatured Spirits Formulas and Authorized Uses Sec. 21.67 Formula No. 38-D. (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).