evaluation of the mics assessed in broth medium for formalin , formocresol and cresol , respectively , and the zone size of growth inhibition on blood agar from these components when incorporated in zno or zno-eugenol cement , suggested that the initial zone of inhibition from formocresol was due mainly to the diffusion of formaldehyde .
C0949307
formalin
C0016564
formaldehyde