11. Ethyl loflazepate also produces an active metabolite which is stronger than the parent compound . 12. Nitrogenous bases are typically classified as the derivatives of two parent compounds , pyrimidine and purine. 13. An increased / isotope ratio in a parent compound thus provides direct evidence of degradation. 14. Heptachlor epoxide is more likely to be found in the environment than its parent compound . 15. The parent compound , erythromycin, has these characteristics, but mitemcinal lacks the antibiotic properties of erythromycin. 16. Synthetic pathways from PGH 2 ( the parent compound ) to prostaglandins, prostacyclin and thromboxanes 17. Like its parent compound , PEA, and isomer, amphetamine, NMPEA is a potent agonist of human TAAR1. 18. The epoxide also dissolves more easily in water than its parent compound and is more persistent. 19. The parent compound SiH 4 is called silane. 20. Myricetin is produced from the parent compound taxifolin through the Alcohol Use Disorder ( AUD ).