U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 21Chapter IPart 172Subpart B - Subpart B—Food Preservatives
§ 172.105 - Anoxomer.
§ 172.110 - BHA.
§ 172.115 - BHT.
§ 172.120 - Calcium disodium EDTA.
§ 172.130 - Dehydroacetic acid.
§ 172.133 - Dimethyl dicarbonate.
§ 172.135 - Disodium EDTA.
§ 172.140 - Ethoxyquin.
§ 172.145 - Heptylparaben.
§ 172.150 - 4-Hydroxymethyl-2,6-di-tert-butylphenol.
§ 172.155 - Natamycin (pimaricin).
§ 172.160 - Potassium nitrate.
§ 172.165 - Quaternary ammonium chloride combination.
§ 172.167 - Silver nitrate and hydrogen peroxide solution.
§ 172.170 - Sodium nitrate.
§ 172.175 - Sodium nitrite.
§ 172.177 - Sodium nitrite used in processing smoked chub.
§ 172.180 - Stannous chloride.
§ 172.185 - TBHQ.
§ 172.190 - THBP.
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