{"topic_id":"additive_crosswalk_cyanocobalamin","category":"additive-crosswalk","context":"---\ntopic_id: additive_crosswalk_cyanocobalamin\ncategory: additive-crosswalk\ntitle: \"氰钴胺（维生素 B12） (en: Cyanocobalamin (Vitamin B12)) — additive cross-jurisdiction identity (CN 公告2045 / EU Reg 1831/2003 / AAFCO 2024 / FDA EAFUS)\"\nlang: en\nsource: \"CN 农业部公告第2045号 饲料添加剂品种目录 (first-hand); EU Feed Additives Register (EU Food & Feed Information Portal; first-hand-derived parse pdf-parsed/eu_feed_additives_2023_1813.json); AAFCO Official Publication 2024 Ch.6 (first-hand); FDA EAFUS Substances Added to Food (first-hand). Derived crosswalk; each cell traced to the named source entry.\"\nsource_file: pdf-raw/cn-law/cn_feed_additive_dir_ann2045_fujian_compile.normalized.txt ; pdf-raw/fda_substances_added_to_food_20260718.csv ; pdf-parsed/us-2026/aafco_ch6_2024_parsed.json ; pdf-parsed/eu_feed_additives_2023_1813.json ; pdf-parsed/ca_cfit_ingredients.json\nsource_type: government_regulation\ndate_parsed: 2026-08-07\ntokens_estimated: 600\nverification: {method: derived_from_dataset, claims: 9, passed: 9, date: 2026-08-08}\ncitation:\n  authority: \"MARA 公告 2045 (CN) / EU Feed Additives Register — EU Food & Feed Information Portal (EU) / AAFCO (US) / FDA EAFUS (US)\"\n  title: \"氰钴胺（维生素 B12） — additive cross-jurisdiction identity\"\n  url: \"https://ec.europa.eu/food/food-feed-portal/screen/feed-additives/\"\n  source: [\"https://www.aafco.org/\", \"http://www.moa.gov.cn/\", \"https://www.fda.gov/food/food-additives-petitions/substances-added-food-previously-known-eafus\"]\n  retrieved: \"2026-08-07\"\n  ref: \"Each jurisdiction's name/authorisation is quoted from the first-hand source; the crosswalk verdict is a derived comparison anchored on substance identity, not a claim of regulatory equivalence. EU cell quotes the E-number and additive name verbatim from the parsed EU Feed Additives Register dataset (pdf-parsed/eu_feed_additives_2023_1813.json).\"\n  doc_type: \"derived crosswalk of first-hand regulations (public domain)\"\n  needs_review: false\nauthority_tier: T1\nauthority_tier_basis: \"T1: derived from T1 first-hand government regulations (CN/EU/AAFCO/FDA EAFUS)\"\nauthority_tier_date: 2026-08-07\n---\n\n# 氰钴胺（维生素 B12） — additive cross-jurisdiction identity\n\nDerived 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.\n\n- **Substance anchor:** 氰钴胺（维生素 B12） (Cyanocobalamin (Vitamin B12))\n- **Verdict:** `closest_with_differences`\n\n## Per-jurisdiction entry\n\n- **🇨🇳 CN — 公告2045 `氰钴胺（维生素 B12）`**: 氰钴胺（维生素 B12） is listed in 表一 饲料添加剂品种目录 (category 维生素及类维生素); scope 养殖动物. _(src: CN 公告2045)_\n- **🇪🇺 EU — Feed Additives Register `3a836`**: Cyanocobalamin (vitamin B12) produced with Ensifer adhaerens CGMCC 19596 — functional category `3 a`. Authorised in the EU feed additives register (first-hand-derived parse of the EU Food & Feed Information Portal register). Cross-jurisdiction note: this EU authorisation is quoted from the register and is not asserted to be equivalent to the CN 公告 2045 / FDA EAFUS entries (definitions, chemical form, or conditions of use may differ). EU authorises specific production-strain preparation(s); the quoted entry is a representative authorisation. _(src: EU Food & Feed Information Portal feed-additives register; parsed dataset pdf-parsed/eu_feed_additives_2023_1813.json, e_number 3a836)_\n- **🇺🇸 FDA (US) — EAFUS `68-19-9`**: VITAMIN B-12 listed for NUTRIENT SUPPLEMENT where applicable; CAS 68-19-9. _(src: FDA EAFUS, CAS 68-19-9)_\n- **🇺🇸 AAFCO (US) — Ch.6**: No stand-alone AAFCO OP 2024 Ch.6 entry for this substance. AAFCO defines substances only where a corresponding feed ingredient is listed; where absent, the cell is an honest gap, not a claim of non-existence. _(src: AAFCO OP 2024 Ch.6 — gap)_\n\n\n- **🇨🇦 CA — Feeds Regs 2024 (CFIT)**: Vitamin B12 (or cyanocobalamin) — is generally expressed as C63H88CoN14O14P, and having the CAS# 68-19-9. It may be blended with suitable carriers listed in the Canadian Feed Ingredients Table to standardize the vitamin B12 concentration. If a carrier is used, it must be approved for use in livestock feeds, it shall be used at the approved rate, and the common name or names shall be indicated on the label. If an antioxidant is used, it must be approved for use in livestock feeds, it shall be used at the approved rate, and the common name or names shall be indicated on the label. If a preservative is used, it must be approved for use in livestock feeds, it shall be used at the approved rate, and the common name or names shall be indicated on the label. It shall be labelled with a guarantee for minimum milligrams of vitamin B12 per kilogram.  _(src: Canadian Feed Ingredients Table (CFIT), inspection.canada.ca; SOR/2024-132; feed additive listed under Part 1 > Class 5. Nutritional ingredients > 5.4 Vitamins)_\n\n## Crosswalk verdict\n\nCN 公告2045 lists 氰钴胺（维生素 B12） (scope 养殖动物). FDA EAFUS lists VITAMIN B-12 (CAS 68-19-9, used for NUTRIENT SUPPLEMENT) as a food substance. AAFCO OP 2024 Ch.6 has no stand-alone entry for this substance (honest gap). Verdict: CN↔US diverge in chemical form or regulatory framing; the pairing is the closest available US analogue, not a confirmed regulatory equivalence (EU filled from the EU Feed Additives Register (FFP parsed dataset)).\n\n\n## Species & use scope (适用范围)\n\nCross-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).\n\n- **🇨🇳 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)_\n- **🇪🇺 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)_\n- **🇺🇸 FDA (EAFUS use class)**: NUTRIENT SUPPLEMENT  _(src: FDA EAFUS, re-surfaced from topic FDA cell)_\n\n## Sources\n\n- 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)\n- EU: EU Feed Additives Register (EU Food & Feed Information Portal; E-number 3a836 = Cyanocobalamin (vitamin B12) produced with Ensifer adhaerens CGMCC 19596, category 3 a). First-hand-derived parse: pdf-parsed/eu_feed_additives_2023_1813.json.\n- FDA: FDA EAFUS \"Substances Added to Food\" (pdf-raw/fda_substances_added_to_food_20260718.csv, first-hand)\n- AAFCO: OP 2024 Ch.6 (pdf-parsed/us-2026/aafco_ch6_2024_parsed.json, first-hand)","sources":["additive-crosswalk — 氰钴胺（维生素 B12） — additive cross-jurisdiction identity (retrieved 2026-08-07)"],"source":{"authority":"additive-crosswalk","title":"氰钴胺（维生素 B12） — additive cross-jurisdiction identity","url":"https://www.aafco.org/","retrieved":"2026-08-07","ref":"","doc_type":"official PDF","source_document":"","verification_file":"pdf-raw/cn-law/cn_feed_additive_dir_ann2045_fujian_compile.normalized.txt ; pdf-raw/fda_substances_added_to_food_20260718.csv ; pdf-parsed/us-2026/aafco_ch6_2024_parsed.json ; pdf-parsed/eu_feed_additives_2023_1813.json ; pdf-parsed/ca_cfit_ingredients.json"},"source_document":"","source_file":"pdf-raw/cn-law/cn_feed_additive_dir_ann2045_fujian_compile.normalized.txt ; pdf-raw/fda_substances_added_to_food_20260718.csv ; pdf-parsed/us-2026/aafco_ch6_2024_parsed.json ; pdf-parsed/eu_feed_additives_2023_1813.json ; pdf-parsed/ca_cfit_ingredients.json","trust":{"authority_tier":"ungraded","fidelity":"verbatim","license":null,"display_grade":"pending"},"tokens_estimated":600,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}