Ethyl Linoleate丨CAS 544-35-4

Ethyl linoleate丨544-35-4 is a naturally derived fatty acid ester, formed by esterification of linoleic acid with ethanol. It occurs naturally in plant oils and is also produced synthetically for use in cosmetic, pharmaceutical, and food-related applications.

1. Cosmetics and Personal Care Products
Ethyl linoleate is widely used in skin care and hair care formulations due to its emollient and moisturizing properties.
● Skin Conditioning Agent: Enhances skin softness, flexibility, and hydration.
● Acne Treatment: May help reduce acne symptoms by regulating sebum and supporting skin barrier function.
● Anti-inflammatory Action: Its omega-6 structure may help soothe irritated or inflamed skin.
● Formulations: Found in creams, serums, lotions, and anti-aging products.
2. Pharmaceutical and Dermatological Applications
● Transdermal Drug Delivery: Ethyl linoleate丨544-35-4 is used as a permeation enhancer, improving drug penetration through the skin.
● Topical Therapeutics: Incorporated in formulations targeting conditions like eczema, dermatitis, and psoriasis.
● Carrier for Active Ingredients: Works well as a solvent or carrier for fat-soluble actives and vitamins (e.g., vitamin A, D, E, K).
3. Nutritional Supplements and Functional Foods
● Essential Fatty Acid Source: Provides linoleic acid, a necessary component for human health, involved in cell membrane function and inflammation regulation.
● Softgel and Capsule Use: Employed as a carrier oil in nutraceutical formulations.
4. Fragrance and Flavor Industry
● Solvent and Fixative: Used to dissolve or stabilize essential oils, fragrances, or other active compounds due to its mild odor and good solubilizing properties.
● Flavor Carrier: Helps deliver fat-soluble flavors in food or aroma applications.
5. Industrial and Biotechnological Uses
● Biodegradable Solvent: Being naturally derived and biodegradable, Ethyl linoleate丨544-35-4 is an eco-friendly solvent alternative for use in coatings, inks, or agricultural sprays.
● Intermediate in Synthesis: Serves as a building block in the production of other fatty acid esters or polymeric materials.

1. Skin-Friendly and Biocompatible
● Non-irritating and non-toxic, even with prolonged use on sensitive or damaged skin.
● Mimics the natural lipids found in human skin, improving barrier function and moisture retention.
2. Omega-6 Fatty Acid Benefits
● Delivers linoleic acid, which plays roles in skin regeneration, wound healing, and anti-inflammatory signaling.
● Helps maintain epidermal integrity and regulates sebum in acne-prone skin.
3. Excellent Penetration and Solubilization
● Penetrates the skin well, allowing it to deliver actives deep into the dermis.
● Dissolves lipophilic (fat-loving) ingredients efficiently, improving formulation performance.
4. Sustainable and Renewable
● Ethyl linoleate can be derived from natural plant oils (e.g., sunflower, safflower, or soybean oil), making it an eco-friendly alternative to petroleum-derived solvents or synthetic emollients.
5. Versatility Across Industries
● With properties that benefit cosmetic, pharmaceutical, food, and industrial sectors, ethyl linoleate is a multi-functional ingredient for modern formulations.

Conclusion
Ethyl linoleate丨544-35-4 is a valuable, naturally derived fatty acid ester with wide-ranging applications in cosmetics, pharmaceuticals, nutrition, and industry. Its emollient, skin-penetrating, and biocompatible nature makes it particularly attractive for skin care and topical drug delivery. With added benefits from its omega-6 structure and sustainable sourcing, ethyl linoleate continues to gain importance as a versatile and functional ingredient in health and wellness products.