果糖

1. Origins, structure, and basic meaning

• Structure: 果糖, read かとう, is the chemical and nutritional noun fructose.
• Basic usage: 果糖の分子模型 represents the substance's molecular structure; 果糖という文字 refers to its printed name.

2. Common pitfalls and similar expressions

• Substance and ingredient-list label
  • The first context concerns the material, while という quotes the word appearing on packaging.