eCFR Reference Browser

---

title: "21 CFR §172.180"

source: "https://www.ecfr.gov/current/title-21/section-172.180"

title_number: "21"

volume_number: "3"

chapter_number: "Unknown"

subchapter_code: "B"

subchapter_subject: "FOOD FOR HUMAN CONSUMPTION (CONTINUED)"

part_code: "172"

part_subject: "FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION"

subpart_code: "B"

subpart_subject: "Food Preservatives"

section_number: "172.180"

section_subject: "Stannous chloride."

cfr_reference: "21 CFR 172.180"

title_name: "Title 21"

title_subject: "Food and Drugs"

parts_covered: "Parts 170 to 199"

revised_date: "Revised as of April 1, 2019"

publication_date: "As of April 1, 2019"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

The food additive stannous chloride may be safely used for color retention in asparagus packed in glass, with lids lined with an inert material, in an amount not to exceed 20 parts per million calculated as tin (Sn).

§172.180 - Stannous chloride.