Diethyl maleate, when used as a fragrance ingredient

Diethyl maleate, when used as a fragrance ingredient in plain language

What it is

Also known as Diethyl maleate · (2Z)-2-BUTENEDIOIC acid, 1,4-DIETHYL ester · Diethyl (2Z)-but-2-enedioate · Diethyl ester maleic acid · diethyl (Z)-but-2-enedioate · (2Z)-2-Butenedioic acid diethyl ester

Show all 20 names

(Z)-2-Butenedioic acid diethyl ester · 2-Butenedioic acid (2Z)-, 1,4-diethyl ester · 2-Butenedioic acid (2Z)-, diethyl ester · 2-Butenedioic acid (Z)-, diethyl ester · 2-Butenedioic acid, diethyl ester, (2Z)- · 2-Butenedioic acid, diethyl ester, (Z)- · Diethyl (2E)-2-butenedioate · Diethyl (Z)-2-butenedioate · Diethylester kyseliny maleinove · Diethylmaleat · Diethylmaleate · Ethyl maleate · Staflex dem · diethyl maleic acid diester

What it does

Used in consumer products as a fragrance ingredient and a flavouring.

• Fragrance
• Flavouring

Is it a concern?

Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

Why it's flagged

Diethyl maleate, when used as a fragrance ingredient 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.

• EU Annex II — prohibited
• EU prohibited in cosmetics

• EU·EC

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

  banned
  View source →

• EU·CosIng·ActiveCosmetics Regulation annex II / ref 426.

  • Cosmetics Regulation annex II / ref 426.Source →
• US·EPA·commercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Fragrance.

  • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Fragrance.Source →
• US·FDA·listed 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 Diethyl maleate, when used as a fragrance ingredient. 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.