5,10-Dimethyldihydrophenazine , with CAS number of 15546-75-5, can be called phenazine, 5,10-dihydro-5,10-dimethyl- ; 5,10-Dihydro-5,10-dimethylphenazine ; 5,10-dihydro-5,10-dimethylphenazine 98% .