CFR > Title 27 - Alcohol, Tobacco Products and Firearms > CHAPTER I—ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY > SUBCHAPTER A—LIQUORS (parts 1 to 31) > PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM > SUBPART E—Specifications for Denaturants (§21.91 to §21.133) > 21.104—Cinchonidine.

21.104—Cinchonidine.

(a) Melting point. 208° to 210 °C.
(b) Color. White powder.
(c) Taste. Bitter.
(d) Test. A solution of cinchonidine in dilute sulfuric acid shall not have more than a faint blue fluorescence (to distinguish from quinine and quinoidine).

Code of Federal Regulations

[T.D. ATF-133, 48 FR 24673, June 2, 1983. Redesignated by T.D. ATF-442, 66 FR 12854, Mar. 1, 2001]