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Benzene

CAS 71-43-2 · 100/100 · High conf.

Also registered as 7 other CAS numbers

25053-22-9 · 26181-88-4 · 62485-97-6 · 54682-86-9 · 174973-66-1 · 1053658-43-7 · 1173023-23-8

Benzene chemical structure

Concern score

100/100Critical concern driven by cmr.
High confidence

Benzene in plain language

What it is

Also known as Coal naphtha · NCI-C55276 · 1,3,5-Cyclohexatriene · Benzene (benzol) · Benceno · Benzeen

Show all 32 names

Benzen · Benzine · Benzol 90 · Benzole · Benzolene · Benzolo · Bicarburet of hydrogen · Cyclohexatriene · Fenzen · Mineral naphtha · Motor benzol · Nitration benzene · Phene · Phenyl hydride · Pyrobenzol · Pyrobenzole · puro benceno · benzene (sara 313) (cercla) · benzene (sara 313) (cercla) % wt: 0.01-0.09 · benzene (sara 313) (cercla). % (wt):0.01-0.90 · benzene (sara 313) (cercla). % wt: 0.10-0.99 · benzene (sara 313) (cercla). %: 0.01-0.09. · benzene (sara 313) (cercla). percentage (wt): 0.00-0.36. · benzene (sara iii) · benzol · Benzinum

What it does

Used in consumer products as a fragrance ingredient.

  • Fragrance
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

Benzene 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.

  • In marketed US drugs
  • EU Annex II — prohibited
  • EU prohibited in cosmetics

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • Industrial

  • EUEC

    Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products. CMR: Carcinogenic Cat. 1A(),Mutagenic Cat. 1B()

    banned
    View source →
  • EUCosIngActiveCosmetics Regulation annex II / ref 47.
  • USEPAcommercial use observedEPA CPDat observed this chemical in 3019 composition records across product categories including Vehicle, Specialty occupational products, Industrial products. EPA CPDat classifies this chemical for functional uses including Propellants, non-motive (blowing agents), Fragrance, cycloolefins.
    • EPA CPDat observed this chemical in 3019 composition records across product categories including Vehicle, Specialty occupational products, Industrial products. EPA CPDat classifies this chemical for functional uses including Propellants, non-motive (blowing agents), Fragrance, cycloolefins.Source →
  • USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 22 active drug products and 25 total products.
    • FDA NDC lists this ingredient in 22 active drug products and 25 total 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 Benzene. 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 Benzene yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

8 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2010-10-28

    Open →

  • EPA Chemical and Products Database

    exposure · updated november 6, 2019

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA National Drug Code Directory

    regulatory · updated 2028-09-13

    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

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 Benzene in a product composition. These are source records, not Greenveil catalog products.

Source records

3,019

Named organisations

6

VehicleSpecialty occupational productsIndustrial productsRaw materialsLaboratory suppliesHome maintenance

Typical roles

Fragrance
See products using Benzene →