L-抗坏血酸（维生素 C） — 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: L-抗坏血酸（维生素 C） (Ascorbic acid (Vitamin C))
- Verdict:
closest_with_differences
Per-jurisdiction entry
- 🇨🇳 CN — 公告2045
L-抗坏血酸（维生素 C）: L-抗坏血酸（维生素 C） 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)_ - 🇪🇺 EU — Feed Additives Register
3a300: Ascorbic acid — functional category1 b. 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). _(src: EU Food & Feed Information Portal feed-additives register; parsed dataset pdf-parsed/eu_feed_additives_2023_1813.json, e_number 3a300)_ - 🇺🇸 FDA (US) — EAFUS
50-81-7: ASCORBIC ACID listed for ANTIMICROBIAL AGENT where applicable; CAS 50-81-7. _(src: FDA EAFUS, CAS 50-81-7)_ - 🇺🇸 AAFCO (US) — Ch.6
90.25Ascorbic acid Vitamin C: _(src: AAFCO OP 2024 Ch.6, code 90.25)_
- 🇨🇦 CA — Feeds Regs 2024 (CFIT): Vitamin C (or ascorbic acid) — is a water-soluble vitamin, and having the CAS# 50-81-7. It shall be labelled with a guarantee for minimum milligrams of ascorbic acid 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)_
Crosswalk verdict
CN 公告2045 lists L-抗坏血酸（维生素 C） (scope 养殖动物). FDA EAFUS lists ASCORBIC ACID (CAS 50-81-7, used for ANTIMICROBIAL AGENT) as a food substance. AAFCO OP 2024 Ch.6 defines Ascorbic acid Vitamin C (code 90.25). 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)).
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): ANTIMICROBIAL AGENT _(src: FDA EAFUS, re-surfaced from topic FDA cell)_
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; E-number 3a300 = Ascorbic acid, category 1 b). First-hand-derived parse: pdf-parsed/eu_feed_additives_2023_1813.json.
- 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)