acetyl triethyl citrate；ATEC

Production Methods

Acetyltriethyl citrate is prepared by the esterification of citric acid with ethanol followed by acylation with acetic anhydride.

Pharmaceutical Applications

Acetyltriethyl citrate is used to plasticize polymers in formulated pharmaceutical coatings. The coating applications include capsules, tablets, beads and granules for taste masking, immediate release, sustained-release and enteric formulations. It is also used in diffusion-controlled release drug delivery systems.

Safety

Acetyltriethyl citrate is used in oral pharmaceutical formulations and is generally regarded as a nontoxic and nonirritating material. However, ingestion of large quantities may be harmful. LD50 (cat, oral): 8.5 g/kg LD50 (mouse, IP): 1.15 g/kg LD50 (rat, oral): 7 g/kg

storage

Acetyltriethyl citrate should be stored in dry, closed containers at temperatures not exceeding 388℃. When stored in accordance with these conditions, acetyltriethyl citrate is a stable product.

Incompatibilities

Acetyltriethyl citrate is incompatible with strong alkalis and oxidizing materials.

Regulatory Status

Approved in the USA for direct food contact in food films.

Definition

Aqueous-based pharmaceutical coat- ings.

General Description

Certified pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards. Triethyl 2-acetylcitrate is widely used in hydrophilic adhesives for medications and in biodegradable composition for papermaking and nonwoven production.