preservative INS 233

Thiabendazole E233

fungicide — Primarily synthetic.

🇪🇺 EU: Approved
🇺🇸 USA: Approved
🇯🇵 Japan: Approved
🇦🇺 AU/NZ: Approved
🇨🇦 Canada: Approved
Scientific Name

2-(4-Thiazolyl)benzimidazole

CAS: 148-79-8

Data verified: 2026-04-04

Factual Regulatory Reference

This database provides factual regulatory information compiled from official government sources. It does not constitute medical, nutritional, or safety advice. Regulatory status varies by country and is subject to change. Always refer to your local regulatory authority for the most current information.

? Did You Know?

In the EU, Thiabendazole has a "quantum satis" authorization — Latin for "as much as needed." This means there's no specific maximum limit; manufacturers use only what's technologically necessary.

Detailed Regulatory Assessment

🇪🇺

European Union (EFSA)

approved Max: quantum satis mg/kg

Permitted in specific categories

🇺🇸

United States (FDA)

approved Food additive

Regulated as a direct food additive under FDA CFR titles.

🇯🇵

Japan (MHLW)

approved Cat: 指定添加物

Compliant with Japanese food sanitation law.

Acceptable Daily Intake (ADI)

International Standard (JECFA)

Not specified

mg/kg body weight per day

European Standard (EFSA)

Not established

Everyday Perspective

For a 60kg adult, this limit is roughly equivalent to consuming:

Natural Occurrence

This additive is not known to occur naturally in significant quantities.

Manufacturing

Method: chemical synthesis

Industrially produced.

Frequently Asked Questions

What is Thiabendazole (E233)?
Thiabendazole (E233) is a preservative used in food products. It is fungicide and synthetic. A fungicide applied to citrus fruit peels to prevent mold. You'll see 'treated with thiabendazole' on orange and lemon stickers!