11. The structure of E was confirmed by comparison against the degradation product of ouabain. 12. Thrombin time can be prolonged by heparin, fibrin degradation products , and fibrinogen deficiency or abnormality. 13. The degradation products control transcription factors, which lead to the expression of a tau protein. 14. Dazomet is irritating to the eyes and its degradation product , MITC, is a dermal sensitizer. 15. Picrocrocin is a degradation product of the carotenoid zeaxanthin. 16. Furthermore, DEPC degradation products can inhibit in vitro transcription. 17. Purlytin is a purpurin; a degradation product of chlorophyll. 18. There was a study that tested methoprene, along with methoprene degradation products , on xenopus laevis larvae. 19. Certain alkylphenols are degradation products from nonionic detergents. 20. Believed to be a degradation product of paragonite, like illite it is a non-expanding, clay-sized, micaceous mineral.