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Uracil

CAS 51953-14-1

Also registered as 11 other CAS numbers

66224-60-0 · 66255-05-8 · 766-19-8 · 4433-21-0 · 4433-24-3 · 42910-77-0 · 51953-19-6 · 138285-60-6 · 144104-68-7 · 153445-42-2 · 66-22-8

Uracil chemical structure

Concern score

Not assessed — no hazard data yet.

Uracil in plain language

What it is

Also known as 1H-pyrimidine-2,4-dione · Hybar x · Pyrod · Pyrimidine-2,4(1H,3H)-dione · 1,2,3,4-tetrahydropyrimidine-2,4-dione · 2,4-(1H,3H)-Pyrimidinedione

Show all 18 names

2,4-DIOXYPYRIMIDINE · 2,4-Dihydroxypyrimidine · 2,4-Dioxopyrimidine · 2,4-Pyrimidinediol · 2,4-Pyrimidinedione · 2-hydroxy-4-(1H)-pyrimidione · 4-Hydroxyuracil · BMS-205603-01 · Pirod · SQ-6201 · SQ-7726 · SQ-8493

What it does

Used in cosmetics as a skin-conditioning agent.

  • Skin conditioning
  • Conditioner
Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Uracil appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Industrial
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 8 composition records across product categories including Specialty occupational products, Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.
    • EPA CPDat observed this chemical in 8 composition records across product categories including Specialty occupational products, Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.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 Uracil. 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 Uracil yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated June 2016

    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 →
Reference links (1)

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

Source records

8

Named organisations

4

Specialty occupational productsLaboratory suppliesPersonal care

Typical roles

Skin conditioningConditioner
See products using Uracil →