Tributyl Citrate

Functional Category

Plasticizer

Applications in Pharmaceutical Formulation

Tributyl 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.(1–6)

Description

Tributyl citrate is a clear, odorless, practically colorless, oily liquid.

Stability and Storage Conditions

Tributyl citrate should be stored in well-closed containers in a cool, dry location at temperatures not exceeding 388C. When stored in accordance with these conditions, tributyl citrate is a stable material.

Incompatibilities

Tributyl citrate is incompatible with strong alkalis and oxidizing materials

Safety

Tributyl citrate is used in oral pharmaceutical formulations. It is generally regarded as an essentially nontoxic and nonirritating material. However, ingestion of large quantities may be harmful. LD50 (cat, oral): >50 mL/kg(7) LD50 (mouse, IP): 2.9 g/kg LD50 (rat, oral): >30 mL/kg