1.1.99.20 35 - stable below 389906 1.1.99.20 40 - stable below 389908 1.1.99.20 60 - 78% loss of activity 389908 1.1.99.20 60 - 94% loss of activity after 15 min at pH 8.0, the inicial velocity of 2,6-dichlorophenolindophenol reduction increases at temperatures up to around 60°C and rapidly declines at those above 60°C 389906