Malonic Acid
AKA “propanedioic acid, 141-82-2, Dicarboxymethane, Carboxyacetic acid, Methanedicarboxylic acid, malonate, Kyselina malonova, USAF EK-695, 1, 3-Propanedioic acid”
Acid
Ingredient Facts
Malonic acid
AKA: Propanedioic acid, 141-82-2, Dicarboxymethane, Carboxyacetic acid, Methanedicarboxylic acid, Malonate, Kyselina malonova, USAF EK-695, 1, 3-Propanedioic acid
Acid · Buffering · EWG: 1
Synthetic
Acid
Clean
Malonic acid is an alpha,-dicarboxylic acid in which the two carboxy groups are separated by a single methylene group. It has a role as a human metabolite. It is a conjugate acid of a malonate(1-).
Solubility greater than or equal to 100 mg/mL at 72 °F (NTP, 1992)
Formula
C3H4O4
Mol. Weight
104.06
CAS #
141-82-2
Form
Liquid
State
Malonic acid appears as white crystals or crystalline powder. Sublimes in vacuum. (NTP, 1992)
See origin →
Functions
Buffering
Stabilizes pH
Antioxidant Protection
Locks In Moisture
Traditional Use
A synthetic dicarboxylic acid developed in the 19th century through organic chemistry synthesis. Used in contemporary skincare formulations as an exfoliant and skin conditioner with no historical cosmetic precedent.
Skin Types
●all-skin-types
Best For
Uneven Texture
Pregnancy & Breastfeeding Safe
Caution
Distribution and fate of diethyl malonate and diisopropyl fluorophosphate on pig skin in vitro.
Chellquist EM, Reifenrath WG
Journal of pharmaceutical sciences, 1988
Diethyl Malonate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Malonic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Diethyl Malonate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Malonic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Designing and Constructing a Novel Artificial Pathway for Malonic Acid Production Biologically.
Gu S, Zhao Z, Yao Y, Li J, Tian C
Frontiers in bioengineering and biotechnology, 2021
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR