[Code of Federal Regulations] [Title 21, Volume 1] [Revised as of April 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR82.1334] [Page 447] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES PART 82--LISTING OF CERTIFIED PROVISIONALLY LISTED COLORS AND SPECIFICATIONS--Table of Contents Subpart C--Drugs and Cosmetics Sec. 82.1334 D&C Red No. 34. Calcium salt of 3-hydroxy-4-[(1-sulfo-2 -naphthalenyl)azol-2- naphthalenecarboxylic acid. Sum of volatile matter (at 135 [deg]C) and chlorides and sulfates (calculated as sodium salts), not more than 15 percent. 2-Amino-1-naphthalenesulfonic acid, calcium salt, not more than 0.2 percent. 3-Hydroxy-2-naphthoic acid, not more than 0.4 percent. Subsidiary colors, not more than 4 percent. Total color not less than 85 percent.