H239
H239 is a designation that can refer to several different things, depending on the context. Without further information, it is difficult to pinpoint a specific entity.
One possibility is that H239 refers to a chemical compound. In chemical nomenclature, prefixes and numbers
Another potential meaning of H239 could be a product model number or a part identifier. Many manufacturers
It is also possible that H239 is a code used in a specific database, catalog, or system.