21 CFR § 500.29 - Gentian violet for use in animal feed.

---
identifier: "/us/cfr/t21/s500.29"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 500.29 - Gentian violet for use in animal feed."
title_number: 21
title_name: "Food and Drugs"
section_number: "500.29"
section_name: "Gentian violet for use in animal feed."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "E"
subchapter_name: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_number: "500"
part_name: "GENERAL"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321, 331, 342, 343, 348, 351, 352, 353, 360b, 371, 379e."
regulatory_source: "40 FR 13802, Mar. 27, 1975, unless otherwise noted."
cfr_part: "500"
---


# 500.29 Gentian violet for use in animal feed.

The Food and Drug Administration has determined that gentian violet is not generally recognized as safe for use in animal feed and is a food additive subject to section 409 of the Federal Food, Drug, and Cosmetic Act (the act), unless it is intended for use as a new animal drug, in which case it is subject to section 512 of the act. The Food and Drug Administration has determined that gentian violet is not prior sanctioned for any use in animal feed.

[56 FR 40506, Aug. 15, 1991]