L-Menthyl Acetate (FG & Technical Grades): The Cooling Minty-Fruity Bridge for Flavors & Fragrances
Updated: Oct 17
Executive Summary
L-Menthyl Acetate is a key mint-derived ester widely valued for its refreshing, cooling character combined with fruity–herbal sweetness. It plays a dual role in flavor formulations (especially mint, fruit, and confectionery) and in fragrance compositions, where it imparts crispness and natural lift. This whitepaper outlines the chemistry, sensory attributes, stability, applications, and regulatory considerations of L-Menthyl Acetate—independent of brand references.
What Is L-Menthyl Acetate? (Chemistry & Structure)
L-Menthyl Acetate is the acetate ester of L-menthol, formed by esterification. Chemically, it is (1R,2S,5R)-2-isopropyl-5-methylcyclohexyl acetate. It occurs naturally in peppermint and other mint oils but is also synthesized for consistent supply. Compared with menthol, its profile is softer, sweeter, and more rounded.
Key Identifiers & Compliance Snapshot
Parameter | L-Menthyl Acetate |
CAS Number | 89-48-5 |
FEMA Number | 2667 |
EC / EINECS | 201-911-8 |
INCI / Flavor Use | Parfum; Flavouring Agent |
Grade Availability | Grade selection: Confirm the supplied grade and intended use |
Verify the supplied grade and purity using its specification and COA. Confirm applicable REACH obligations, current IFRA restriction information for fragrance use, and food-use requirements for the intended application and market.
Sensory Profile & Odor Threshold
Signature: cooling mint, fruity pear–apple nuance, sweet herbal freshness.
Odor threshold: low; effective at trace levels.
In flavors, it rounds sharp menthol notes with a sweeter, fruitier quality.
In fragrances, it provides crisp top freshness and a natural minty lift.
Physico-Chemical Properties (Formulator Notes)
Appearance: colorless to pale yellow liquid
Boiling Point: ~227 °C
Density: ~0.90–0.92 g/cm³ (20 °C)
Refractive Index: ~1.45
Solubility: insoluble in water; soluble in alcohols, oils, perfumery solvents
Stability: relatively stable; sensitive to hydrolysis in alkaline media; store airtight and light-protected
Grades, Quality & Documentation
Confirm grade availability and specifications with the supplier. For food use, request evidence of suitability for the intended application and market, including any claimed FCC conformance. Documents to request:
COA (Certificate of Analysis)
SDS (Safety Data Sheet)
TDS (Technical Data Sheet)
Information on applicable IFRA Standards and raw-material restrictions (for fragrance use)
Flavor/Food Compliance Statement
Current allergen declaration; GMO/Non-GMO, Vegan, Halal or Kosher documentation where relevant and available
Applications & Typical Use Levels
Flavors
Used in mint, fruit (pear, apple, berry), and confectionery flavors.
Popular in chewing gum, toothpaste, syrups, beverages, and baked goods.
Typical use levels: 5–50 ppm in finished product (validate locally).
Fragrances & Consumer Products
Adds cooling freshness in oral care, body care, air care, and household products.
Used in mints, fougères, citrus, and fruity accords.
Typical dosage: trace to 2% depending on formula.
Formulation Strategy & Pairings
Pairs well with:
Menthol, peppermint oil, spearmint oil
Citrus (lemon, lime, orange)
Fruity esters (ethyl butyrate, isoamyl acetate)
Green and herbal notes (eucalyptol, basil, rosemary)
Role in Accord:
Rounds off sharp menthol with fruity sweetness
Enhances cooling effects while softening harsh edges
Adds crisp natural lift in minty–fruity blends
Tips:
Begin with low ppm levels
Monitor hydrolysis in alkaline or aqueous systems
Stabilize with antioxidants in complex matrices
Stability, Storage & Packaging
Store in sealed, light-resistant containers (aluminum, lacquered glass, HDPE).
Environment: cool, dry, away from heat and oxidants.
Shelf life: 12–24 months depending on storage.
Regulatory & Safety Overview
Flavor use: Confirm the supplied grade's permitted use, conditions and specifications for the intended food application and destination market.
Fragrance use: Check the current IFRA Standards and supplier restriction information for the exact material and intended finished-product category.
Allergen status: Request a current supplier allergen declaration and assess finished-product labelling under applicable requirements, including EU Regulation 2023/1545 for cosmetics.
Safety: Use the current SDS for the supplied grade to determine hazard classification, handling precautions and exposure controls.
Safety: Avoid concentrated inhalation; wear gloves during handling; follow SDS.
Analytical & QC (GC-MS, Assay)
Identity: confirmed via GC-MS (retention index & spectrum).
Assay: ≥98% GC area purity typical.
Monitoring: ester content, menthol residues, hydrolysis byproducts.
Purchasing Checklist
☑ Correct grade (FG or Technical) on COA
☑ CAS/FEMA numbers match specs
☑ Regulatory declarations & SDS on file
☑ Shelf life & packaging validated
☑ Pilot tested in final application
FAQs
Q: How does L-Menthyl Acetate differ from Menthol?A: It is smoother, sweeter, less sharp, and adds fruity-herbal freshness.
Q: Can it replace Menthol?A: Not directly it is complementary. It softens menthol and enhances fruity–mint accords.
Q: Does it degrade easily?A: It is stable under normal conditions but may hydrolyze in alkaline or high-moisture systems.
Sample & Quotation
Interested in L-Menthyl Acetate for flavor or fragrance applications? Contact us for samples, FG/Technical grades, and full documentation (COA, SDS, TDS, compliance). Please specify your intended use, dosage, and regulatory requirements.
This article was researched and written by Galbora
The use of this article is permitted by citing the source.
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