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Isoproturon

CAS 34123-59-6 · 100/100 · High conf.

Isoproturon chemical structure

Concern score

100/100Critical concern driven by cmr.
High confidence

Isoproturon in plain language

What it is

Also known as 3-(4-Isopropylphenyl)-1,1-dimethylurea (Isoproturon - ISO) · 1,1-dimethyl-3-(4-propan-2-ylphenyl)urea · 3-(4-Isopropyl-phenyl)-1,1-dimethyl-urea · 3-(4-Isopropylphenyl)-1,1-dimethylharnstoff · 3-(4-isopropilfenil)-1,1-dimetilurea · 3-(4-isopropylphenyl)-1,1-dimethylurea

Show all 28 names

3-(4-isopropylphenyl)-1,1-dimethyluree · 3-p-Cumenyl-1,1-dimethylurea · Arelon · Arelon Dyspersyjny · Arelon R · Belgran · CGA-18731 · Cl 12150 · Dpx 6774 · Graminon · Hoe 16410 · Hytane 500L · Ip 50 · IP-Flo · IPU Stefes · N,N-DIMETHYL-N'-(4-(1-METHYLETHYL)PHENYL)UREA · N-4-Isopropylphenyl-N,N-dimethylurea · Nocilon · Tolkan · Urea, 3-p-cumenyl-1,1-dimethyl- · Zodiac TX · isoproturon (ISO)

What it does

We don't have a plain-language description for Isoproturon yet.

Is it a concern?
Critical concern: classified for carcinogenic, mutagenic or reproductive toxicity (CMR). It is banned in EU cosmetics.

Why it's flagged

  • Cmr

3-(4-Isopropylphenyl)-1,1-dimethylurea (Isoproturon - ISO) 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
  • Industrial
  • EUEC

    Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products. CMR: Carcinogenic Cat. 2()

    banned
    View source →
  • EUCosIngActiveCosmetics Regulation annex II / ref 1061.
    • Cosmetics Regulation annex II / ref 1061.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Isoproturon. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

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

7 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2010-10-21

    Open →
  • EPA Chemical and Products Database

    exposure · updated 4 December 2007

    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 →

Suitability

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

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

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

Named organisations

2

See products using Isoproturon →