HPPD-IN-6 (Compound IIy) 是一种对水稻具有高选择性的HPPD抑制剂。它对Echinochloa crus-galli和Leymus chinensis(包括抗除草剂的生物型)表现出卓越的除草活性,其EC50为19.62-33.26 g of ai/ha。在施用90-150 g of ai/ha时,HPPD-IN-6 能有效防除稻田中的杂草,并可用于新型除草剂的开发。
Nitisinone-13C6 isinone-13C6 is intended for use as an internal standard for the quantification of nitisinone by GC- or LC-MS. Nitisinone (T1684) is an inhibitor of 4-hydroxyphenylpyruvate dioxygenase (HPPD),which converts 4-hydroxyphenylpyruvate (HPPA)to homogentisate in the tyrosine catabolic pathway.1Nitisinone increases urinary levels of HPPA and 4-hydroxyphenyllactate (HPLA)in rats when administered at a dose of 10 mg/kg. Nitisinone (T1684) (3 mg/kg)prevents the neonatal lethality of fumarylacetoacetate hydrolase (FAH)deficiency in mice when administered to pregnant dams.2It exhibits hepatoprotective effects inFAH-/-mice,such as prevention of increases in plasma levels of aspartate serine aminotransferase (AST)and conjugated bilirubin,when administration is continued following birth at a dose of 1 mg/kg. Nitisinone (T1684) (100 μg)decreases urinary excretion of homogentisate and increases urinary excretion of HPPA,HPLA,and 4-hydroxyphenylacetate in a mouse model of alkaptonuria induced by ethylnitrosourea.3Formulations containing nitisinone have been used in the treatment of hereditary tyrosinemia type 1 (HT-1).