Malonic acid CAS 141-82-2

Product name: Malonic acid
English alias: Propanedioic acid; methylene dicarboxylic acid
CAS: 141-82-2
Molecular formula: C3H4O4
Appearance: White crystalline powder
Package: 25kg/bag

What is Malonic acid？

Malonic acid is a simple dicarboxylic acid with the molecular formula C3H4O4. It appears as a white crystalline solid that is soluble in water, alcohol, and ether. Known for its active methylene group, malonic acid is widely used as an intermediate in organic synthesis. It plays a crucial role in the production of barbiturates, flavors, fragrances, and agrochemicals. In addition, malonic acid and its derivatives are applied in polymer, resin, electroplating, and pharmaceutical industries due to their chelating and buffering capabilities.

COA:

Items	Standard	Results
Appearance	White or Almost white crystalline powder	white crystalline powder
Water	0.50%	0.20%
Assay	≥99.0	99.8
Melting Point	132.0–137.0°C	134.0–135.1°C

Application:

Applied in organic synthesis for malonic ester reactions and decarboxylation processes.
Serves as a precursor for specialty chemicals such as flavors and fragrance ingredients.
Used in the manufacture of adhesives, resins, and biodegradable polymers.
Acts as a complexing agent in electroplating and metal finishing industries.
In laboratory settings, used in academic research as a standard dicarboxylic acid.
Can be used in agricultural formulations and as a pH buffer in certain biochemical applications.

Safety profile:

Malonic acid is considered to have low acute toxicity but may cause irritation to the skin, eyes, and respiratory tract upon contact or inhalation. It should be handled with care in well-ventilated areas, wearing appropriate protective equipment. Avoid prolonged exposure and contact with incompatible materials such as strong oxidizers. It is not classified as a carcinogen or environmental hazard under normal handling and disposal guidelines.

Storage requirements:

keep the product dry
relative humidity < 50%
protect product against influences of weather and contamination

Transport & Packaging:

Malonic acid for industrial and pharmaceutical applications is solely supplied in packaging of different sizes. It can be packaged in various items: 25 kg bags, paper bags with PE liners, or custom packaging upon request.