technical Ingredient Overview
🔎 Chemical Name — hexyl 2-hydroxybenzoate
🧪 Synonyms — Hexyl salicylate; n-Hexyl salicylate; Hexyl o-hydroxybenzoate; Benzoic acid 2-hydroxy-, hexyl ester; 1-Hexyl salicylate
📂 CAS — 6259-76-3
⚖️ Molecular weight — 222.28 gmol
📝 Odor type — Floral–green, fruity salicylate
📈 Odor strength — Medium–high
👃🏼 Odor profile — Tipycal salicylate note, some say Trefle. Some say balsamic.
⚗️ Uses — Modifier/fixative in floral, fruity, green, fougère and marine accords; stable in soaps, detergents, fabric- & air-care bases
🧴 Appearance — Clear, colourless to pale-yellow oily liquid
What is Hexyl Salicylate?
Hexyl Salicylate is the hexyl ester of salicylic acid, a member of the salicylate family of fragrance molecules. Thanks to its balanced molecular weight (222.28 g/mol) and very low vapour pressure (≈ 0.001 hPa at 25 °C), it imparts long-lasting floral freshness while acting as a gentle fixative in perfumes (PubChem, n.d.; Givaudan, n.d.).
Historical Background
Salicylate esters gained perfumery relevance in the early 20ᵗʰ century as durable substitutes for naturals. Hexyl Salicylate was commercialised by the mid-1950s and comprehensively described by Arctander in Perfume and Flavor Chemicals(1969), who noted its “very faint, sweet-herbaceous floral odour with dry bark-like green undertones.” It remains a core aroma molecule in contemporary catalogues (Symrise, 2021).
Olfactory Profile
Scent family: Floral–green salicylates
Main descriptors: Lily-of-the-valley, apple-like fruitiness, leafy herbaceous nuance
Intensity & tenacity: Moderate diffusion; very high substantivity—detectable for weeks on a blotter (Givaudan, n.d.)
Volatility / fixative role: Low volatility (b.p. ≈ 290 °C) makes it an effective mid- to base-note fixative, smoothing top notes and extending dry-down.
Applications in Fine Fragrance
Elevates white-floral accords (lily-of-the-valley, jasmine).
Bridges fruity top-notes in modern fruity-florals.
Confers natural “green sap” tone in colognes and fougères.
Commonly paired with fellow salicylates such as Amyl Salicylate and Benzyl Salicylate for additional depth.
Performance in Formula
Excellent alkaline stability; ideal for soap and detergent bases.
High substantivity on both damp and dry textiles; strong blooming in laundry applications (Givaudan, n.d.).
Industrial & Technical Uses
Widely employed in functional perfumery—laundry liquids, fabric softeners, dishwash detergents, deodorants and air-fresheners—thanks to its hydrolytic stability and ability to mask harsh detergent bases (Symrise, 2021).
Regulatory & Safety Overview
IFRA Standard (Amendment 51, 2023) — Restricted (Limits based on dermal sensitisation and systemic toxicity).
Category 4 (fine fragrance) 6.5 %; Category 1 leave-on 0.092 %; Category 6 oral 0.0092 %.
Additional Information
Natural occurrence: Trace constituent of Vanilla planifolia pods (PubChem, n.d.).
Synthesis: Industrial Fischer esterification of salicylic acid with 1-hexanol under strong-acid catalysis.
Comparative note: Offers a softer, greener tonality than Isoamyl Salicylate and greater tenacity than Methyl Salicylate.
References
Arctander, S. (1969). Perfume and Flavor Chemicals (Vols. I–II). Montclair, NJ: Author.
European Commission, Scientific Committee on Consumer Safety. (2024). Scientific Opinion on Hexyl Salicylate (SCCS/1658/23). Brussels: Directorate-General for Health and Food Safety.
Givaudan. (n.d.). Hexyl Salicylate – Ingredient Sheet. Retrieved May 18, 2025.
International Fragrance Association (IFRA). (2023). IFRA Standard – Hexyl Salicylate (Amendment 51).
PubChem. (n.d.). Hexyl Salicylate (CID 22629) – Compound Summary. National Center for Biotechnology Information. Retrieved May 18, 2025.
Symrise. (2021). Hexyl Salicylate – Product Data Sheet. Holzminden, Germany.
Vigon International. (2020). Safety Data Sheet: Hexyl Salicylate.