Organic Acids
REACH
Malonic acid
CAS Number
141-82-2
EC Number
205-503-0
What is Malonic acid?
Malonic acid (CAS 141-82-2) is a short-chain dicarboxylic acid used in pharmaceutical synthesis, specialty chemical manufacturing, and personal care formulation.
Where is Malonic acid used?
- Pharmaceutical manufacturing: building block in barbiturate and vitamin B1 synthesis via the malonic ester route
- Personal care: pH adjuster and preservative-boosting agent in skin care
- Food: acidulant and flavoring component contributing a clean tart note
- Specialty chemicals: catalyst precursor and chelating agent
- It functions as a reactive intermediate and pH buffering agent.
Commercial specifications
- Pack sizes from laboratory quantities to bulk industrial volumes
- High-purity material meets USP and BP specifications; food-grade material compliant with FCC standards
Other Names (Synonyms)
propanediolic acid|propanedioic acid|methanedicarboxylic acid|methanedicarbonic acid|H2malo|carboxyacetic acid|malonate|Kyselina malonova
What are the physical properties of Malonic acid?
Melting Point 135 °C (decomp)
Boiling Point 135 °C
Density 1.6 g/cm³
Flash Point 157°C
Appearance Crystalline
Color White
Form Liquid
Water Solubility 1400 g/L (20 ºC)
Vapor Pressure 0-0.2Pa at 25℃
Refractive Index 1.4780
pH 3.17(1 mM solution);2.5(10 mM solution);1.94(100 mM solution)
Log P -0.81
How is Malonic acid classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed
H315 Causes skin irritation
H318 Causes serious eye damage
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
Which trade and regulatory codes apply to Malonic acid?
HS Code 29171910
Storage Class 13 - Non Combustible Solids
WGK (Germany) 1