Name: Malonic acid

English name: Propanedioic acid

Other names: malic acid, carrot acid; beet acid; malic acid; methane dicarboxylic acid; propane dicarboxylic acid

Chemical formula: C3H4O4

Molecular weight: 104.06

CAS Registry Number: 141-62-2

EINECS registration number: 205-503-0

Melting point: 135-136℃

Boiling point: 140°C (decomposition)

Water solubility: 1400 g/L (20 ºC)

Density: 1.619 g/cm3

External view: white crystal

Flash point: 157°C

Application: used in pharmaceutical intermediates, spices, adhesives, etc.

Safety description: S26; S37; 39

Hazard symbol: Xn, Xi

Hazard description: R22; R36; 37; 38

Dangerous goods transport code: 3261

SMILES: O=C(O)CC(O)=O

Molar mass: 104.03 g·mol−1

The main purpose

1. Mainly used in pharmaceutical intermediates, as well as spices, adhesives, resin additives, electroplating polishing agents, etc.; used as complexing agents, and also used in the preparation of barbitur salts.

2. Malonic acid is the intermediate of the fungicide rice blasting and the intermediate of the plant growth regulator indole.

3. Malonic acid and its esters are mainly used in perfumes, adhesives, resin additives, pharmaceutical intermediates, electroplating polishing agents, explosion control agents, thermal welding flux additives, etc.

4. Malonic acid is used as an aluminum surface treatment agent. Since only water and carbon dioxide are generated during thermal decomposition, there is no pollution problem.

5. Mainly used in pharmaceutical intermediates, as well as spices, adhesives, resin additives, electroplating polishing agents, etc.; used in the production of barbiturates and other drugs.