# Coumarone-indene resin — Food additive regulatory approval status — US FDA vs EU For Coumarone-indene resin, jurisdiction is US FDA (21 CFR 172–178); status is permitted; citation is 21 CFR 172.215; use conditions is on grapefruit, lemons, limes, oranges, tangelos, and tangerines in accordance with the following prescribed conditions: ( a ) The food additive is manufactured by the polymerization of a crude, heavy coal-tar solvent naphtha meeting the following specifications: ( 1 ) It is a mixture of inden, recorded from its source on 2026-08-15. - **Additive:** Coumarone-indene resin _(verified: appears in the quote below)_ - **Jurisdiction:** US FDA (21 CFR 172–178) _(our reading, not quoted from the source)_ - **Status:** permitted _(our reading, not quoted from the source)_ - **Citation:** 21 CFR 172.215 _(our reading, not quoted from the source)_ - **Use conditions:** on grapefruit, lemons, limes, oranges, tangelos, and tangerines in accordance with the following prescribed conditions: ( a ) The food additive is manufactured by the polymerization of a crude, heavy coal-tar solvent naphtha meeting the following specifications: ( 1 ) It is a mixture of inden... _(verified: appears in the quote below)_ ## What the source says > § 172.215 Coumarone-indene resin. The food additive coumarone-indene resin may be safely used on grapefruit, lemons, limes, oranges, tangelos, and tangerines in accordance with the following prescribed conditions: ( a ) The food additive is manufactured by the polymerization of a crude, heavy coal-tar solvent naphtha meeting the following specifications: ## Source - https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172 Last verified: 2026-08-15. Review by: 2027-08-15. Part of [Food additive regulatory approval status — US FDA vs EU](https://referencesource.org/food-additive-approval-status-us-vs-eu/).