IPA: /ˈfoʊtəʊˌprɒdʌkt/
KK: /ˈfoʊtoʊˌprɒdʌkt/
A substance that is formed as a result of a chemical reaction involving light.
The photoproduct formed during the experiment was analyzed for its properties.
Photoproduct → It is formed from "photo-" (from Greek "phōs", meaning light) and "product" (from Latin "productus", meaning brought forth or produced). The word "photoproduct" refers to a product that is produced or generated by the action of light.
Think of 'light' ('photo-') creating something that is 'brought forth' ('product'). This helps you remember that a photoproduct is something produced by light.
No commonly confused words.