Chemical Product Library / Reference
Dehydroacetic acid
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Dehydroacetic acid |
|---|---|
| English synonyms | DHA;Dehydroacetic acid;3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione |
| Chinese name | 脱氢乙酸 |
| Chinese synonyms | DHA;去氢乙酸 |
| Chemical category | Preservatives |
| CAS No. | 520-45-6 |
| EINECS No. | 208-293-9 |
| Molecular formula | C8H8O4 |
| Molecular weight | 168.15 |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
Assay ≥99.0%; melting point 109–112°C; water ≤0.5%; heavy metals (as Pb) ≤10 ppm; residue on ignition ≤0.1%
Performance characteristics
White crystalline powder, slightly soluble in water, broad-spectrum antimicrobial activity
Application scenarios
Food preservative, cosmetic preservative, pharmaceutical preservative, plasticizer