hydrogenophaga intermedia hydrogenophaga intermedia hydrogenophaga intermedia is a gram-negative, oxidase-positive bacterium from the comamonadaceae family. it has the ability to degrade 4-aminobenzenesulfonate. hydrogenophaga intermedia scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: hydrogenophaga species: h. intermedia binomial name hydrogenophaga intermediacontzen et al. 2001, sp. nov. type strain cip 107269, dsm 5680, iam 14919, jcm 21401, kctc 12151, nbrc 102510