1: With ethylenediaminetetraacetic acid trisodium salt; oxygen; Mn(CH3COO)2*4H2O; ascorbic acid powder in water Udenfriend reaction; pH=4; 2: With iron sulphate heptahydrate; ethylenediaminetetraacetic acid trisodium salt; oxygen in water T=45°C; Udenfriend reaction; 2 h;

in water Ambient temperatureM. griseo-cyanus (ATCC 1207a); further microbial agents;

in water 480 h; Ambient temperatureC. blakesleeana (ATCC 8688a); further microbial agents; Further byproducts given;

in water; N,N-dimethyl-formamide 480 h; Ambient temperatureC. blakesleeana (ATCC 8688a); further microbial agents; Further byproducts given;