StructureSodium dehydroacetate
CAS No. 4418-26-2
EC No. 224-580-1
Synonyms INCI: Sodium dehydroacetate; 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione sodium salt; Sodium dehydroacetate; 3-(1-Hydroxyethylidene)-6-methyl-2H-pyran-2,4(3H)-dione sodium salt; 2H-Pyran-2,4(3H)-dione, 3-acetyl-6-methyl-, sodium salt; Dehydracetic acid sodium salt; DHA-S; DHA-sodium; DHN

Sodium dehydroacetate

​Sodium dehydroacetate is a globally approved preservative for cosmetics and toiletries (leave-on and rinse-off products).

It is a preservative with high efficacy and low use cost, with a broad spectrum activity.

Sodium dehydroacetate is water soluble and compatible with any type of formulating system. 

It has an excellent toxicity profile, non-sensitizing and non-irritating. Sodium dehydroacetate is permitted by Ecocert, as synthetic preservative in ecological and organic certified cosmetics.

Sodium dehydroacetate is an effective antimicrobials at low concentrations (less than and equal to 0.6%) against both bacteria and fungi. These ingredient is more likely to act by preventing the growth of microbes, rather than killing the microbes.

The CIR Expert Panel found that Sodium dehydroacetate and cosmetics containing this ingredient were practically nonirritating, nonsensitizing, nonphotosensitizing, and nonphototoxic in numerous clinical tests


Shelf Life

Under proper storage conditions, the shelf life is 12 months.

Health & Safety

Detailed information on the product described can be found in our relevant Health and Safety Information (Material Safety Data Sheet).