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Molecular formula: C₅H₄O₂
 
Molecular weight: 96.086
 
Properties: Light yellow or amber liquid with the special odor similar to formaldehyde. It will become red brown if exposed in the air, flammable, slightly soluble in water, easily soluble in ethanol,aether.
 
Main use: One of the materials of organic synthesis. It can prepare maleic anhydride, oxalic acid, furfuryl alcohol, tetrahydrofuran etc. It can synthesize medicine, pesticide, animal remedy and resin etc.. Also used as solvent in the industries including food, flavor and dyes etc.
Packaging: Packed in 240kg new metal pail. 19.2t(80pail)/20 chi container or delivered in 21-25t(N.W.) bulk bin.
 
Storage: Stored in cool and dry place. Avoid exposal in the sun.

Index:
Content: 98.5% MIN.
Water content:0.2% MAX.
Acid content: 0.016 MOL/L MAX.
Density:(D₄²⁰)g/cm³: 1.159-1.162
Refractive index(_D²⁰): 1.524-1.527