The factual accuracy of this chemistry-related file is disputed.
The dispute is about: Comment from the file talk page: This structure is incorrect in that it implies an ethylene linkage between urea units. To correct it, eliminate one methylene link (Please discuss here)
You may want to notify the uploader(s) by placing the following code on their talk page {{subst:disputed chem/notification|UreaFormaldehydeResin01.png}}