蛋氨酸铁络（螯）合物 — additive cross-jurisdiction identity

Derived crosswalk of how one feed additive is named and authorised across jurisdictions. No claim of regulatory equivalence is made — pairings are anchored on the substance identity, and the verdict states where the definitions actually diverge.

Substance anchor: 蛋氨酸铁络（螯）合物 (Iron methionine chelate)
Verdict: closest_with_differences

Per-jurisdiction entry

🇨🇳 CN — 公告2045 蛋氨酸铁络（螯）合物: 蛋氨酸铁络（螯）合物 is listed in 表一饲料添加剂品种目录 (category 矿物元素及其络（螯）合物); scope 养殖动物. _(src: CN 公告2045)_
🇪🇺 EU — Feed Additives Register: No current EU authorisation entry for this substance was found in the EU feed additives register (EU Food & Feed Information Portal; parsed dataset pdf-parsed/eu_feed_additives_2023_1813.json). Iron methionine chelate has no entry in the EU feed additives register (iron amino-acid / lysine-and-glutamic-acid chelates are listed, e.g. E-number 3b106 / 3b111). Do not fabricate an EU entry. _(src: EU Food & Feed Information Portal feed-additives register; parsed dataset pdf-parsed/eu_feed_additives_2023_1813.json — no matching authorisation; honest gap)_
🇺🇸 FDA (US) — EAFUS: No corresponding FDA EAFUS entry found for Iron methionine chelate (search of FDA EAFUS for 'IRON METHIONINE' returned no 21 CFR listing for this substance); no US entry quoted — not fabricated. _(src: FDA EAFUS — gap)_
🇺🇸 AAFCO (US) — Ch.6 57.142 Metal Amino Acid Chelate: is the product resulting from the reaction of a metal ion from a soluble metal salt with amino acids with a mole ratio of one mole of metal to one to three (preferably two) moles of amino acid to form coordinate covalent bonds. _(src: AAFCO OP 2024 Ch.6, code 57.142)_

🇨🇦 CA — Feeds Regs 2024 (CFIT): Iron methionine complex (or iron methionine sulfate) — is the product resulting from complexing a soluble iron salt (that is, iron sulfate) with the specific amino acid methionine. It shall be labelled with guarantees for minimum percent of iron, and minimum percent bound iron. _(src: Canadian Feed Ingredients Table (CFIT), inspection.canada.ca; SOR/2024-132; feed additive listed under Part 2 > Class 5. Nutritional ingredients > 5.3 Minerals)_

Crosswalk verdict

CN 公告2045 lists 蛋氨酸铁络（螯）合物 (scope 养殖动物). FDA EAFUS contains no corresponding entry for Iron methionine chelate (search for 'IRON METHIONINE' returned no 21 CFR listing); recorded as an honest no_confirmed_equivalent — not fabricated. AAFCO OP 2024 Ch.6 defines Metal Amino Acid Chelate (code 57.142). Verdict: CN↔US diverge in chemical form or regulatory framing; the pairing is the closest available US analogue, not a confirmed regulatory equivalence (EU noted as honest gap).

Species & use scope (适用范围)

Cross-jurisdiction species / use-scope dimension surfaced from each jurisdiction's retrieved source. CN 适用范围 is quoted verbatim from the 公告2045 饲料添加剂品种目录; EU target-species and FDA use-class reflect only what is already present in the topic's own cells (no new source fetches).

🇨🇳 CN (公告2045 适用范围): 养殖动物 _(src: 农业部公告第2045号饲料添加剂品种目录, 适用范围)_
🇪🇺 EU (target species): honest gap — target-species / conditions of use not present in the currently retrieved EU source (conditions_of_use deferred). _(src: EU Feed Additives Register — gap)_
🇺🇸 FDA (EAFUS use class): honest gap — use class not present in the currently retrieved source (no FDA EAFUS entry found). _(src: FDA EAFUS — gap)_

Sources

CN: 农业部公告第2045号《饲料添加剂品种目录》 (first-hand; fujian compile txt, intra-cell line wraps normalised for verbatim quotation)
EU: EU Feed Additives Register (EU Food & Feed Information Portal) — searched pdf-parsed/eu_feed_additives_2023_1813.json; no current authorisation for this substance (honest gap, not fabricated).
FDA: FDA EAFUS "Substances Added to Food" (pdf-raw/fda_substances_added_to_food_20260718.csv, first-hand)
AAFCO: OP 2024 Ch.6 (pdf-parsed/us-2026/aafco_ch6_2024_parsed.json, first-hand)

蛋氨酸铁络（螯）合物 — additive cross-jurisdiction identity