What is the name of the following compound? 
Definitions:
Self-concept
The understanding and perception that an individual has of themselves, encompassing beliefs, feelings, and thoughts about one's abilities and identity.
Sildenafil
A pharmaceutical drug primarily used to treat erectile dysfunction and pulmonary arterial hypertension by increasing blood flow to the penis and relaxing blood vessel walls.
STIs
Sexually Transmitted Infections, diseases that are primarily spread through sexual activity, including vaginal, anal, and oral sex.
High-fat Meal
A meal consisting of foods that are rich in fats, which can affect the body's metabolism and heart health.
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