Good Cosmetic Ingredient GHS Classified

4-METHYLPENT-3-EN-2-ONE

CAS Number

141-79-7

Function

Perfuming

Safety Rating

GOOD

Regulatory Status

🇪🇺 EU Status Permitted

🇺🇸 US Status Not specifically regulated

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

GHS Hazard Classification

Globally Harmonized System classification per ECHA C&L inventory and ILO/WHO International Chemical Safety Cards.

Signal Word

DANGER

Pictograms

flam;flame; skull;toxic; cancer;health haz

Hazard Statements

Flammable liquid and vapour Harmful if swallowed Toxic if inhaled Causes skin and eye irritation May cause respiratory irritation May cause damage to organs through prolonged or repeated exposure May be harmful if swallowed and enters airways Harmful to aquatic life

Short-term Exposure Effects

The substance is irritating to the eyes, skin and respiratory tract. Exposure far above the OEL could cause unconsciousness. If swallowed the substance may cause vomiting and could result in aspiration pneumonitis.

Long-term Exposure Effects

The substance defats the skin, which may cause dryness or cracking. The substance may have effects on the liver, kidneys and lungs.

Routes of Exposure

The substance can be absorbed into the body by inhalation of its vapour and by ingestion.

Expert Verdict

4-METHYLPENT-3-EN-2-ONE is listed in the EU CosIng database with functions: Perfuming It is permitted in the EU without specific restrictions.

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Concern Level: Low

Regulatory Flags

cosing-sourced eu-permitted fragrance needs-enrichment ifra_fragrance fda_food_additive

Frequently Asked Questions

Is 4-METHYLPENT-3-EN-2-ONE safe in cosmetics?

4-METHYLPENT-3-EN-2-ONE is listed in the EU CosIng database with functions: Perfuming It is permitted in the EU without specific restrictions. The EU classifies 4-METHYLPENT-3-EN-2-ONE as "Permitted". Safety rating: GOOD.

Is 4-METHYLPENT-3-EN-2-ONE allowed in the EU?

4-METHYLPENT-3-EN-2-ONE EU regulatory status: Permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does 4-METHYLPENT-3-EN-2-ONE do in cosmetics?

4-METHYLPENT-3-EN-2-ONE functions as: Perfuming. It is classified as a cosmetic ingredient in our database. CAS number: 141-79-7.

Is 4-METHYLPENT-3-EN-2-ONE classified as hazardous under GHS?

4-METHYLPENT-3-EN-2-ONE carries a GHS signal word of "DANGER". Hazard statements: Flammable liquid and vapour Harmful if swallowed Toxic if inhaled Causes skin and eye irritation May cause respiratory irritation May cause damage to organs through prolonged or repeated exposure May be harmful if swallowed and enters airways Harmful to aquatic life. This classification is based on the ILO/WHO International Chemical Safety Card and ECHA C&L inventory data. Note: GHS classification applies to the pure substance — at cosmetic use concentrations, hazard thresholds may not be met.

Compliance Tools

Check 4-METHYLPENT-3-EN-2-ONE compliance across multiple jurisdictions:

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Ingredient Decoder

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82 Allergen Checker

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Substance Compliance

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MoS Calculator

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Heavy Metal Limits

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