Question about article

[Taishi]

Hi all,

This is an example sentence:

Bisphenol A compounded in plastics has two phenolic hydroxyl groups.

Does "Bisphenol A compounded in plastics" sound to you "Bisphenol A is a material usually compounded in plastics"?

Is it usual that you don't use "the" with Bisphenol A, which is the name of a chemical substance?

[Josef Essberger]

Point 1: I cannot deduce from the given sentence whether it is usually compounded in plastics or not, though it suggests to me that it often is.

Point 2: Yes, since it is a name, “the” is not used.

[alfred]

Both points are well clarified - chemical names like Bisphenol A are treated like proper nouns and don't take "the", and the sentence structure suggests but doesn't explicitly state that this is a common use of the compound in plastics.