出典:Wiktionary
出典:『Wiktionary』 (2025/11/09 23:06 UTC 版)
From a trade name, presumably a shortened form of the chemical name.
metol (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/08/07 07:11 UTC 版)
Metol is the chemical compound with the name monomethyl-p-aminophenol hemisulfate. It is a developing agent used in black & white photographic developers. In its pure form, it is a solid rather light-sensitive chemical which is the half sulfate (hemisulfate) salt of N-methyl-p-aminophenol.