
Benzyl salicylate, also known as salicylic acid benzyl ester, MF: C14H12O3, MW: 228.24, is produced by esterification of salicylic acid with benzyl alcohol. It serves as a versatile raw material in synthetic fragrances and cosmetics. It possesses a long-lasting sweet aroma, excellent fixative properties, and good solubility in organic solvents while being insoluble in water. Its primary function is as a fixative, while also serving as a fragrance component and UV absorber.
| Item | Specification |
| Melting point | 24–26°C |
| Boiling point | 300°C |
| Density | 1.176 g/mL at 25°C (lit.) |
| Flash point | >230°F |
| Vapour pressure | 0.01 Pa at 25°C |
| Refractive Index | n20/D 1.581 (lit.) |
| Acidity Constant (pKa) | 8.11 ± 0.30 (Predicted) |
| Solubility | Practically insoluble in water; soluble in organic solvents such as ethanol. |
Benzyl salicylate is a classic fixative in the fragrance industry, primarily used for:
– Fragrancing in perfumes, colognes, soaps, shower gels, shampoos, body lotions, and other daily chemical products.
– Small quantities in flavorings for candies, baked goods, and beverages.
As a UV absorber in cosmetic products:
– Sunscreens, sunblock lotions, sunscreen sprays, sun protection primers, etc.
– Day creams, foundations, and primers with sun protection.
Modern pharmaceutical applications:
– As a transdermal enhancer for drugs (e.g., hormonal agents, analgesics).
– As a solvent or stabilizer in topical formulations (e.g., ointments, patches).
Industrial uses:
– Core solvent for synthesizing synthetic musk.
-Used in certain specialty coatings (e.g., wood finishes, metal protective paints) or inks.
-Commonly employed as a plasticizer for soft plastic components (e.g., electrical wire jackets, plastic films).
Other Special Applications:
-Ingredient in pet flea collars and insect repellent sprays.
-Used as a fabric softener and wrinkle-resistant agent in high-end textiles.
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