Thioglycolic acid (TGA, also known as MERCAPTOACETIC ACID) is widely used in the hairdressing industry, which mostly caters to women. TGA has been reported to impair several organs, especially reproductive ones such as testes and ovaries. Thioglycolates (the salt forms of TGA) was shown to penetrate the skin and distribute to the kidneys, lungs, small intestine, and spleen; excretion is primarily in the urine. In addition, thioglycolates can be skin irritants of an animal and can be sensitizers.

Acid Orange 20 is an azodye. Used for wool, silk fiber dyeing, etc. Also used in leather dyeing and indicator.

Aminomethylbenzoic acid (or p-aminomethylbenzoic acid, or PAMBA) an antifibrinolytic agent. This drug has been used for the treatment of internal hemorrhage during chronic disseminated intravascular coagulation.

Orotic acid is a minor dietary constituent. Historically it was believed to be part of the vitamin B complex and was called vitamin B13, but it is now known that it is not a vitamin and is synthesized in the body, where it arises as an intermediate in the pathway for the synthesis of pyrimidine nucleotides. Orotic acid is converted to UMP by UMP synthase, a multifunctional protein with both orotate phosphoribosyl transferase and orotidylate decarboxylase activity. The most frequently observed inborn error of pyrimidine nucleotide synthesis is a mutation of the multifunctional protein UMP synthase. As a result, plasma orotic acid accumulates to high concentrations, and increased quantities appear in the urine. Orotic acid levels are elevated in the urea cycle defects ornithine transcarbamylase (OTC) deficiency, citrullinemia and argininosuccinic acidemia, as well as the mitochondrial transport disorder hyperornithinemia-hyperammonemia-homocitrullinuria (HHH) syndrome. Orotic acid is also elevated in hereditary orotic aciduria, or uridine monophosphate synthase deficiency, an autosomal recessive disorder characterized by megaloblastic anemia and crystalluria. In addition, orotic acid in combination with leflunomide is in the phase II of clinical trial to evaluate the clinical efficacy and safety of a combination in kidney transplant patients with high levels of Polyoma BK viruria for the purpose of preventing polyoma BK viremia and nephropathy, that could lead to kidney transplant loss from viral damage, acute rejection or both.

Adrenochrome is one of the principal oxidation products of epinephrine and has no significant pressor action. It has been studied in Europe since 1937 and in America since 1951 for its action in control of bleeding from capillaries and venules. Its role seems independent of the chemistry of coagulation, the vitamin K-prothrombin mechanism, and the function of heparin or the usual anticoagulants. It is alleged to reduce capillary permeability and to increase capillary resistance. Both natural and synthetic adrenochrome are markedly unstable and insoluble. Evolution of the adrenochrome monosemicarbazone sodium salicylate complex has overcome these chemical difficulties. This product is synthetically prepared in America under the trade name Adrenosem and the generic name of carbazochrome. The loss of blood was measured in fifty-three patients who underwent multiple extractions and alveoloplasty under general anesthesia. No local anesthetic was employed in any case. Of the fifty-three patients, twenty-six were prepared preoperatively by the intramuscular injection of 5 mg of carbazochrome (Adrenosem) salicylate one and one-half to two hours prior to the operation. The remaining twenty-seven patients served as a control group. When operations of equal extent and severity were compared, it was found that no effective benefit in reduction of loss of blood at operation was noted in the patients treated with carbazochrome salicylate.