ecdysone + AH2 + O2 = 20-hydroxyecdysone + A + H2O
ecdysone + ah2 + o2 = 20-hydroxyecdysone + a + h2o
ecdysone + AH2 + O2 = 20-hydroxyecdysone + A + H2O
ecdysone + ah2 + o2 = 20-hydroxyecdysone + a + h2o