Potassium Lactate is a potassium salt of lactic acid commonly used in meat and poultry products to extend shelf life and increase food safety as it has a broad antimicrobial action. Potassium Lactate is produced by neutralizing lactic acid which is fermented from a sugar source. Potassium Lactate has E number "E326".

Lactic acid, D- is a natural optical isomer of lactic acid. It is a poorly utilized isomer – 30 to 40% of the dose ingested is excreted in the urine. Lactic acid, D- is known to be harmful to human metabolism and it can result in acidosis and decalcification. D-lactic acidosis, also referred as D-lactate encephalopathy, has been reported in patients with short bowl syndrome. Lactic acid, D- is an interesting precursor for manufacturing heat-resistant polylactic acid (PLA) bioplastics which can be widely used, for example as packaging material, coatings, for textiles or in the automotive industry.

Ethacridine (Rivanol) is an acridine derivative indicated for the treatment of bacterial infections. In many countries the drug was in clinical practice for the second trimester termination of pregnancy.