# Narasin

URL: https://app.greenveil.ai/ingredients/ingredient_dtxsid_dtxsid2046707
Categories: food, industrial
Functions: Antimicrobial agent
Identifier: DTXSID2046707

> Narasin: Used in food as an antimicrobial agent. Greenveil chemical-concern score: 40/100 — Moderate concern based on regulatory listings.. Compiled from 7 published data sources.

## Safety assessment

- Chemical concern score: 40/100 — Moderate concern based on regulatory listings.
- Confidence in this assessment: High
- Is it a concern? Moderate concern: no hazard classifications on record.
- Rationale: EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.

## Regulatory status

- EU: EFSA opinion — Cross-contamination of non-target feedingstuffs by narasin authorised for use as a feed additive (EFSA CONTAM)
- EU: EFSA opinion — Opinion of the Scientific Panel on additives and products or substances used in animal feed (FEEDAP) on the re-evaluation of efficacy and safety of the coccidiostat Monteban® G100 in accordance with article 9G of Council Directive 70/524/EEC (EFSA FEEDAP)
- EU: EFSA opinion — Safety and efficacy of Monteban G100 (narasin) for ducks for fattening (EFSA FEEDAP)
- EU: EFSA opinion — Safety and efficacy of Monteban G100 (narasin) for chickens for fattening (EFSA FEEDAP)
- EU: EFSA opinion — Scientific Opinion on the safety and efficacy of Maxiban G160 (narasin and nicarbazin) for chickens for fattening (EFSA FEEDAP)
- EU: EFSA opinion — Scientific Opinion on the modification of authorisation of the feed additive Monteban G100 (narasin) for chickens for fattening (EFSA FEEDAP)
- GLOBAL: 0-0.005 mg/kg bw — JECFA evaluation lists ADI 0-0.005 mg/kg bw. Functional class: antimicrobial agent.
- US: commercial use observed — EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

## Expert safety opinions

- JECFA (Joint FAO/WHO Expert Committee on Food Additives): JECFA evaluation lists ADI 0-0.005 mg/kg bw. Functional class: antimicrobial agent. — https://apps.who.int/food-additives-contaminants-jecfa-database/Home/Chemical/5874.
- EFSA (European Food Safety Authority): Cross-contamination of non-target feedingstuffs by narasin authorised for use as a feed additive (EFSA CONTAM) — 2007 — https://doi.org/10.2903/j.efsa.2007.552; Opinion of the Scientific Panel on additives and products or substances used in animal feed (FEEDAP) on the re-evaluation of efficacy and safety of the coccidiostat Monteban® G100 in accordance with article 9G of Council Directive 70/524/EEC (EFSA FEEDAP) — 2004 — https://doi.org/10.2903/j.efsa.2004.90; Safety and efficacy of Monteban G100 (narasin) for ducks for fattening (EFSA FEEDAP) — 2018 — https://doi.org/10.2903/j.efsa.2018.5461; Safety and efficacy of Monteban G100 (narasin) for chickens for fattening (EFSA FEEDAP) — 2018 — https://doi.org/10.2903/j.efsa.2018.5460; Scientific Opinion on the safety and efficacy of Maxiban G160 (narasin and nicarbazin) for chickens for fattening (EFSA FEEDAP) — 2010 — https://doi.org/10.2903/j.efsa.2010.1574; Scientific Opinion on the modification of authorisation of the feed additive Monteban G100 (narasin) for chickens for fattening (EFSA FEEDAP) — 2010 — https://doi.org/10.2903/j.efsa.2010.1549.

## Data sources

- EFSA OpenFoodTox (updated 2026-10-04): https://doi.org/10.5281/zenodo.8120114
- EPA Chemical and Products Database (updated 2020-08-31): https://apvma.gov.au/node/10696
- EPA DSSTox Identifiers (updated 2025-12-29): https://epa.figshare.com/articles/dataset/Chemistry_Dashboard_Data_DSSTox_Identifiers_Mapped_to_CAS_Numbers_and_Names/5588566
- FDA GSRS UNII (updated 2026-02-26): https://precision.fda.gov/uniisearch/
- WHO JECFA Database (updated 2026-10-04): https://apps.who.int/food-additives-contaminants-jecfa-database/Home/Chemical/5874
- openFDA Substance (updated 2026-05-24): https://api.fda.gov/other/substance.json?search=unii:DZY9VU539P
- PubChem Live Enrichment (updated 2026-05-17): https://pubchem.ncbi.nlm.nih.gov/compound/65452

_Assessed by Greenveil._