Skip to content
  • industrial

Methyl isothiocyanate

CAS 556-61-6

Also registered as 1 other CAS number

1800084-95-0

Methyl isothiocyanate chemical structure

Concern score

Not assessed — no hazard data yet.

Methyl isothiocyanate in plain language

What it is

Also known as Isothiocyanatomethane · Mitc · methylimino(sulfanylidene)methane · Isothiocyanate de methyle · methyl ester Isothiocyanic acid · Isotiocianato di metile

Show all 24 names

MeNCS · Methane, isothiocyanato- · Methyl isothiocyanide · Methyl mustard · Methyl-isothiocyanat · Methylisothiocyanaat · Methylisothiokyanat · Methylsenfoel · Morton EP-161E · Trapex · Trapex-40 · Trapexide · Tropex · Vorlex (Nor-Am) · Vortex · isotiocianato de metilo · methyl isothiocyanate (sara iii) · methylisothiocyanate

What it does

Used in consumer products as a flavouring.

  • Flavouring
Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Methyl isothiocyanate appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 3 composition records across product categories including Pesticides. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient.
    • EPA CPDat observed this chemical in 3 composition records across product categories including Pesticides. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

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

5 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated May-00

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    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.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

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

Source records

3

Named organisations

6

Pesticides

Typical roles

Flavouring
See products using Methyl isothiocyanate →