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Allyl isothiocyanate

CAS 57-06-7 · 100/100 · High conf.

Also registered as 5 other CAS numbers

50888-64-7 · 50978-48-8 · 58391-87-0 · 107231-30-1 · 1001911-93-8

Allyl isothiocyanate chemical structure

Concern score

100/100Critical concern based on regulatory listings.
High confidence

Allyl isothiocyanate in plain language

What it is

Also known as 3-Isothiocyanatoprop-1-ene · Stabilized allyl isothiocyanate · Artificial mustard oil · 1-Propene, 3-isothiocyanato- · 2-Propenyl isothiocyanate · 3-Isothiocyanato-1-propene

Show all 26 names

Aitc · Allyl isosulfocyanate · Allyl mustard oil · Allyl sevenolum · Allyl thioisocyanate · Allylisothiocyanat · Allylsenevol · Allylsenfoel · Allylsevenolum · Allyspol · Allyspol 75EC · Carbospol · Isothiocyanate d'allyle · Oil of mustard · Oleum sinapis · Oleum sinapis volatile · Redskin · Senf oel · Senfoel · mustard oil

What it does

Used in food as a flavouring agent.

  • Flavouring agent
  • Fragrance
  • Flavouring
  • Antimicrobial
Is it a concern?
Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

Why it's flagged

Allyl isothiocyanate is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — banned

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

Restrictions first, then routine listings from published regulatory sources.

  • EU Annex II — prohibited
  • EU prohibited in cosmetics

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Industrial

  • EUEC

    Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.

    banned
    View source →
  • EUEFSAEFSA opinion3 entries
    • Scientific Opinion on the safety and efficacy of aliphatic and aromatic mono- and di-thiols and mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups (chemical group 20) when used as flavourings for all animal species (EFSA FEEDAP)Source →
    • Scientific Opinion on the safety of allyl isothiocyanate for the proposed uses as a food additive (EFSA ANS)Source →
    • Flavouring Group Evaluation 38 (FGE.38)1 3-Butenyl isothiocyanate Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (EFSA AFC)Source →
  • EUCosIngActiveCosmetics Regulation annex II / ref 18.
  • GLOBALJECFANo safety concern at current levels of intake when used as a flavouring agentJECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.
    • JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 30 composition records across product categories including Specialty occupational products, Arts and crafts/office supplies, Home maintenance. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Fragrance, Biocide.
    • EPA CPDat observed this chemical in 30 composition records across product categories including Specialty occupational products, Arts and crafts/office supplies, Home maintenance. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Fragrance, Biocide.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

    • JECFA evaluation lists ADI No safety concern at current levels of intake when used as a flavouring agent. Functional class: flavouring agent.

      Year not recorded · GLOBAL JECFA listing · Read the source →

  • EFSA

    European Food Safety Authority

    • Scientific Opinion on the safety and efficacy of aliphatic and aromatic mono- and di-thiols and mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups (chemical group 20) when used as flavourings for all animal species (EFSA FEEDAP)

      2013 · EU EFSA listing · Read the source →

    • Scientific Opinion on the safety of allyl isothiocyanate for the proposed uses as a food additive (EFSA ANS)

      2010 · EU EFSA listing · Read the source →

    • Flavouring Group Evaluation 38 (FGE.38)1 3-Butenyl isothiocyanate Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (EFSA AFC)

      2008 · EU EFSA listing · Read the source →

Evidence & sources

No graded research studies for Allyl isothiocyanate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

9 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2010-10-15

    Open →

  • EFSA OpenFoodTox

    regulatory · updated 2026-10-04

    Open →

  • EPA Chemical and Products Database

    exposure · updated February 8, 2019

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • WHO JECFA Database

    regulatory · updated 2026-10-04

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Allergen profile

Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.

  • MustardContains · Oral (ingested)

    Source: chemindex_name_match

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed Allyl isothiocyanate in a product composition. These are source records, not Greenveil catalog products.

Source records

30

Named organisations

6

Specialty occupational productsArts and crafts/office suppliesHome maintenanceCleaning products and household carePersonal care

Typical roles

Flavouring agentFragranceFlavouringAntimicrobial
See products using Allyl isothiocyanate →

Catalog

Found in these products

Their ingredient lists include Allyl isothiocyanate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 209 →Find products without it →