2-Methyldecanal is widely used in the fragrance industry due to its unique, fresh, and slightly citrus-like aroma. It is a key ingredient in perfumes, colognes, and personal care products, where it adds a subtle, elegant note to floral and woody compositions. Its ability to blend well with other fragrance components makes it a versatile choice for creating complex scents. Additionally, it is used in household products like air fresheners and detergents to impart a clean and pleasant odor. In the food industry, it is occasionally employed as a flavoring agent to enhance the taste of certain products with its mild, aldehydic character.