Diethyl Succinate
AKA “Diethyl butanedioate, Ethyl succinate, Butanedioic acid, diethyl ester, Succinic acid diethyl ester, 4-diethyl butanedioate, 4-diethyl ester”
Synthetic
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Ingredient Facts
Diethyl succinate
AKA: Diethyl butanedioate, Butanedioic acid, Diethyl ester, Succinic acid diethyl ester, 4-diethyl butanedioate, 4-diethyl ester
Synthetic · Plasticiser | Skin Conditioning - Emollient | Solvent · EWG: 4
Plant-Derived
Emollient
Solvent
Skin Conditioner
Synthetic
Clean
A lightweight conditioning agent that helps soften skin and improve product texture, while allowing other beneficial ingredients to blend smoothly together.
Solubility 19.1 mg/mL at 25 °C
Formula
C8H14O4
Mol. Weight
174.19
CAS #
123-25-1
Form
Liquid
Plant-Derived
Synthetic. Synthesized from succinic acid and ethanol, both petroleum-derived or bio-based organic compounds. Produced through esterification reaction of succinic acid with ethanol using acid catalysts.
Function
Plasticiser | Skin Conditioning - Emollient | Solvent
Benefits
Locks In Moisture
Traditional Use
Modern synthetic ester used as a solvent and humectant in cosmetic formulations. Developed to improve product texture and moisture retention in skincare products.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR