Dehydroacetic acid (DHA)

  1. Basic Information
CAS:  520-45-6
EINECS: 208-293-9
Molecular Formula: C8H8O4
Molecular Weight: 168.15
Structural Formula:



Synonyms: Dehydranone;
  1. Technical Specification
Item Specification
Appearance White or light yellow powder
Assay ( on dry basis) ,% 98.0-100.5
Melting point, ℃ 109.0-111.0
Loss on Drying,% ≤1.0
Ignition residue, % ≤0.1
Heavy metals

Pb (mg/kg)



  1. Solubility

Hard to dissolve in water, soluble in benzene, ether, acetone and hot ethanol.


  1. Packing

Standard packaging:25kg/drum  Available special request


  1. Storage

Store in a well-ventilated, cool, dry area, out of direct sunlight. Keep containers tightly closed when not in use.


  1. Period of validity

24 months


  1. Application

It is a low toxicity, high efficiency, broad spectrum antimicrobial agent. Used as preservatives and anti-mould agent in paint, oil, leather products, food, feed, packaging materials and cosmetics. The maximum allowable amount (mass fraction) is 0.6% (acid), and the general use content (mass fraction) is 0.02% to 0.2%.