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Diacetin (CAS 25395‑31‑7), also named glyceryl diacetate, is a colourless, hygroscopic oily liquid, formed by glycerol reacting with two acetic‑acid molecules. It is miscible with water, alcohol and many organic solvents.
As a permitted multi‑purpose food additive, it acts as humectant, solvent for flavours, plasticizer and carrier. It improves flexibility of edible films, softens confectionery texture and retains moisture. It is also used in cosmetics and tobacco industry. It possesses low toxicity and complies with global food‑safety regulations for authorised usage levels.
Diacetin, or glyceryl diacetate, is a permitted food‑grade synthetic ester produced from glycerol and acetic acid. It is a colourless hygroscopic oily liquid with good solubility in water, ethanol and oils. In food manufacturing, it serves as humectant, flavour solvent, plasticizer and carrier agent. It has no strong flavour itself and meets major global food regulatory standards for allowed dosage.
One key application is in confectionery and gummy products. Diacetin works as an effective humectant to lock moisture inside soft candies, gummies and toffees. It reduces moisture loss during storage, prevents products from becoming hard, brittle or cracked, and maintains flexible, chewy texture over shelf life. Meanwhile, it suppresses excessive sugar crystallization, avoiding grainy surface texture. Unlike some polyols, it brings minimal sweet taste and will not overly alter product sweetness profile.
It acts as an excellent solvent and carrier for food flavours and essential oils. Many lipophilic flavour substances cannot disperse well in aqueous food matrices. Diacetin dissolves flavour oils, spice extracts and aroma compounds evenly, helping them distribute homogenously in beverages, baked goods and seasonings. It stabilises volatile aroma components and slows flavour evaporation during heating processing, preserving consistent sensory performance of finished food.
For edible films and edible coatings, diacetin functions as plasticizer. Pure edible films made of starch or protein tend to be rigid and easy to crack. Adding diacetin increases film flexibility and ductility. Such edible coatings can wrap nuts, dried fruits and confectionery pieces to block moisture exchange and oxygen penetration, delaying spoilage and sticking between individual pieces.
In baked goods, it helps retain moisture in cakes, pastries and fillings. It slows water migration inside high‑sugar fillings, stopping crust from turning soggy. It also improves processability of dough‑based products without interfering with yeast fermentation. In margarine and fat‑based spreads, it assists emulsion homogenisation and modifies crystal behaviour of fats.
Diacetin is also used in processed fruit, jam and composite seasonings. In jam and fruit preparations, it moderates water activity to support shelf‑life stability. For liquid compound seasonings, it dissolves lipophilic spice ingredients to avoid oil‑water layer separation.
Important practical limitations should be noted. Excess diacetin may generate faint acetic‑like odour and bring unpleasant tangy taste. It is often combined with glycerol or sorbitol to optimise humectant effect. Manufacturers need to strictly follow local food additive specifications. Overall, diacetin is a multi‑functional processing auxiliary widely adopted for texture maintenance, flavour delivery and edible‑material modification in food industry.
Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical and Intermediates, Food and Feed additives, Fine chemicals,Biochemical and Reagent, which is the members of Hubei E-commerce Chamber.
Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients' requirement.
We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.
Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward power, their satisfaction is our struggling goal.
Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide Diacetin with good quality and best price, welcome to contact us to get COA/TDS/MSDS of Diacetin.
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