{"data":{"id":"us/21-cfr-82.1334","jurisdiction":"us","citation":"21 CFR 82.1334","heading":"D\u0026C Red No. 34.","body":"Calcium salt of 3-hydroxy-4-[(1-sulfo-2 -naphthalenyl)azol-2-naphthalenecarboxylic acid.\nSum of volatile matter (at 135 °C) and chlorides and sulfates (calculated as sodium salts), not more than 15 percent.\n2-Amino-1-naphthalenesulfonic acid, calcium salt, not more than 0.2 percent.\n3-Hydroxy-2-naphthoic acid, not more than 0.4 percent.\nSubsidiary colors, not more than 4 percent.\nTotal color not less than 85 percent.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER A—GENERAL","PART 82—LISTING OF CERTIFIED PROVISIONALLY LISTED COLORS AND SPECIFICATIONS","Subpart C—Drugs and Cosmetics"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"1f692a43720f41655e996527993e9658344b01eb54cb00764de598a094f920e3","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-82.1333","next":"us/21-cfr-82.1336"},"notice":"GroundRules: Original legal text. Not legal advice."}