Answer:

amidol

AnswerCrossword Clue
AMIDOLPhoto developing chemical
AMIDOLDeveloper's compound
AMIDOLPhoto developing compound
AMIDOLDarkroom powder
AMIDOLPhotographic developer of bromid plates.
AMIDOLPhotographer's developer.
AMIDOLPhotographer's compound
AMIDOLPhotographic developer
AMIDOLPhoto-development chemical
AMIDOLChemical used in film developing
AMIDOLCompound used as a photographic developer
AMIDOLPhotographic-developer compound
AMIDOLSalt used as a photographic developer
AMIDOLPhoto developing powder
AMIDOLDeveloping agent in photography