Nerol Extra (FG & Technical Grades): The Bright Floral–Citrus Bridge for Flavors & Fragrances
Updated: Oct 17
Nerol Extra (FG & Technical Grades): The Bright Floral Citrus Bridge for Flavors & Fragrances
Executive Summary
Nerol Extra is a classic aroma and flavor ingredient prized for its delicate rosy–floral character blended with light citrus freshness and subtle green notes. It functions as both a top-to-heart transition in fragrances and a flavor enhancer in citrus and floral-forward profiles. This whitepaper provides a comprehensive technical overview of Nerol Extra across applications, isomeric form, stability, regulatory context, and formulator guidance—without referencing any specific brand.
What Is Nerol? (Chemistry & Isomers)
Nerol (cis‑3,7‑dimethyl‑2,6‑octadien‑1‑ol) is a monoterpenoid alcohol and geometric isomer of geraniol. While both isomers share a sweet, floral odor profile, Nerol has a fresher, greener, and slightly more delicate character. It naturally occurs in essential oils such as neroli, citronella, and rose, and is commonly synthesized for consistency and cost-efficiency.
Key Identifiers & Compliance Snapshot
Parameter | Nerol Extra |
CAS Number | 106-25-2 |
FEMA Number | 2770 |
EC / EINECS | 203-378-7 |
INCI / Flavor Use | Parfum; Flavouring Agent |
Grade Availability | Grade selection: Confirm the supplied grade and intended use |
Note: 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: fresh rose, citrus zest, light green, soft floral.Nerol has a low to moderate odor threshold, allowing it to impart freshness and brightness even at low concentrations. Its scent is diffusive and short-to-medium in longevity, making it ideal as a transition note or top-to-heart bridge in compositions.
Physico‑Chemical Properties (Formulator Notes)
Appearance: colorless to pale yellow liquid
Boiling Point: ~227 °C
Density: ~0.87–0.89 g/cm³ at 20 °C
Refractive Index: ~1.47
Solubility: insoluble in water; soluble in alcohols, glycols, esters, and perfumery carriers
Stability: sensitive to oxidation and light; store under inert gas where possible
Grades, Quality & Documentation
Confirm Nerol Extra grade availability with the supplier. For food applications, request documentation supporting the supplied grade's suitability for the intended food use and market, including any claimed FCC conformance. Documents to request include:
Certificate of Analysis (COA)
Safety Data Sheet (SDS)
Technical Data Sheet (TDS)
Information on applicable IFRA Standards and raw-material restrictions (for fragrance use)
Flavor/Food Compliance Statement
Current supplier allergen declaration for the applicable EU cosmetic labelling requirements
GMO / Non-GMO, Vegan, Halal, Kosher status (where relevant)
Applications & Typical Use Levels
Flavors
Used in citrus, tropical, floral, and berry-type flavorings. It provides a fresh, natural lift to orange, lemon, and exotic fruit profiles and supports subtle rosy or floral backgrounds.
Beverages, candy, baked goods, syrups
Typical use levels: 1–5 ppm (finished product); validate per local food laws.
Fragrances & Consumer Products
Common in fine fragrance, personal care, fabric care, and air care. Used to lift floral hearts, enhance top notes, or add natural freshness in rose and neroli-type accords.
Typical usage: trace to 2% depending on role (e.g., floral booster, citrus top note, freshener)
Sectors: soaps, shampoos, lotions, candles, laundry fragrances
Formulation Strategy & Pairings
Pair with:– Rose, neroli, orange blossom, jasmine– Linalool, citronellol, geraniol– Citrus oils (lemon, mandarin, orange)– Green, leafy notes and light musks
Role in Accord:– Lifts and bridges top to mid floral notes– Adds softness to citrus– Naturalizes synthetic citrus/fruity blends– Freshens floral bouquets and provides “dewy” effects
Formulation Tips:– Begin at low ppm or <1%– Rebalance with green or woody notes if overly sweet– Monitor oxidation potential in emulsions or high-pH systems
Stability, Storage & Packaging
Store in sealed, light-resistant containers (preferably aluminum or lacquered glass)
Environment: cool, dry, away from direct light and heat
Recommended: nitrogen blanket for long-term stability
Shelf Life: 12–24 months depending on storage
Packaging: aluminum bottles, HDPE or UN drums, check compatibility for citrus monoterpenes
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 Considerations:– Avoid inhalation of concentrated vapors– Use gloves during handling– Refer to latest SDS for risk assessment
Analytical & QC (GC-MS, Assay)
Identity: Confirmed via GC-MS (retention index & mass spectrum match)
Assay: Typically ≥97% GC area purity
Monitor:– Isomer content (Geraniol contamination)– Oxidation byproducts (e.g., hydroperoxides)– Residual solvents if applicable
For food use: confirm the exact grade's identity, purity specification, intended use and applicable food requirements for the destination market.
Purchasing Checklist & FAQs
Checklist
☑ Supplied grade and specification confirmed on the COA ☑ CAS/FEMA identifiers match the internal specification ☑ Current COA, SDS and applicable regulatory information received ☑ Current allergen declaration and relevant IFRA restriction information on file for fragrance use ☑ Food-use suitability confirmed for the intended application and market where relevant ☑ Shelf life and packaging meet application needs ☑ Sample tested in the final formula or matrix
FAQs
Q: Can Nerol Extra be used in both fragrances and flavors? A: Suitability depends on the supplied grade and intended application. For food use, obtain supplier confirmation of the grade's specification and permitted use in the target market; confirm any claimed FCC conformance.
Q: What if Nerol becomes too floral or sweet in the formula?A: Lower the dosage and rebalance with green, woody, or citrusy notes to add contrast and freshness.
Q: Is Nerol the same as Geraniol?A: No—though structurally similar, they differ in geometry (cis vs trans) and olfactory profile. Nerol is greener, fresher, and more delicate.
Q: Does it oxidize easily?A: Like many terpene alcohols, yes—store under inert gas and minimize air/light exposure.
Sample & Quotation
Interested in evaluating Nerol Extra in your next flavor or fragrance formula? Contact us to confirm available grades, samples, documentation (COA, SDS, TDS) and formulation support. Please specify the intended application, target dosage and destination market so that the appropriate grade and requirements can be checked.
This article was researched and written by Galbora
The use of this article is permitted by citing the source.
📩 Get in Touch
📧 Email: info@Galbora.com
🌐 Website: www.Galbora.com
Location: İçerenköy,umut Sk.No:10 D:1234752 Ataşehir / İstanbul
Comments