In short
Florol is a synthetic pyranol with a fresh lily-of-the-valley character. It is one of the materials used to build muguet accords now that several classic muguet aldehydes are restricted or prohibited.
What Florol smells like
Florol (Firmenich) is a fresh, soft, natural floral with a muguet character; Firmenich's technical descriptors are muguet and ozone, and it presents Florol as a very stable, substantive building block that can replace less stable floral aldehydes. Third-party descriptions add rosy, lightly earthy and soft fruity-melon undertones.
- Leading note
- Fresh natural muguet
- Clear facets
- Ozone
- Supporting facets
- Rosy
- Faint facets
- Earthy, melon
- Character
- Fresh, natural, soft, substantive
What makes Florol distinctive
Fresh air in a muguet: its ozonic side and natural feel separate it from the sweeter, more linden-like hydroxycitronellal, and its stability lets it stand in for floral aldehydes.
How Florol is used
Used as a stable muguet building block in fine and functional fragrance, including as a replacement for restricted muguet aldehydes.
Typical role: backbone (used in large proportions as a structural material of an accord); blender (smooths the joins between other materials).
How Florol differs from similar materials
- Hydroxycitronellal
- Hydroxycitronellal is sweeter and softer, with linden; Florol is fresher and more ozonic.
- Lilyflore
- Lilyflore is moister and more powdery; Florol is fresher and more natural, with an ozonic side.
Each difference compares the published descriptions of the two materials. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.
Formulation considerations
Stable and easy to work with.
Identity and classification
- Type
- Aroma chemical
- Origin
- Synthetic
- Odour family
- Floral / Green
- Note position
- Heart note
- Physical form at room temperature
- Liquid
- Also known as
- Tetrahydro-4-methyl-2-isobutyl-2H-pyran-4-ol
- CAS number
- 63500-71-0
- Molecular formula
- C10H20O2
- Molecular weight
- 172.26 g/mol
- IUPAC name
- 4-methyl-2-(2-methylpropyl)oxan-4-ol
The CAS number, formula and molecular weight are taken from PubChem compound 3017432, whose own record lists this CAS number; checked 19 October 2026.
Safety and compliance
Hazard classification of the neat substance, as PubChem summarises it, read 26 October 2026. Companies notifying the ECHA C&L Inventory report it as not meeting the GHS hazard criteria (1 of 3,419 reports). Unless it is harmonised, this is the notifiers' own classification, not a binding one.
This page is general information, not a safety assessment or a specification. Confirm identity, composition, IFRA status and allergen content from your supplier's documents for the lot you hold.
Materials it works with
-
Hydroxycitronellal
Aroma chemical · Floral / Green — muguet, floral, soft, sweet
-
Mayol
Aroma chemical · Floral / Green — muguet, fresh, clean, floral
-
Phenylethyl Alcohol
Aroma chemical · Floral / Green — rose, honeyed, soft, floral
-
Hedione
Aroma chemical · Floral / Citrus — jasmine, transparent, citrus, airy
Florol is also suggested as a partner on the pages for Clarycet, Coranol, Florhydral, Hivernal Neo, Majantol and Nympheal.
Used in formulas and accords
Used in 16 published formulas
Florol is an ingredient in 8 perfume formulas and 8 accords in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Florol
Is Florol natural or synthetic?
Florol is synthetic — it is made by chemical synthesis.
What is the CAS number of Florol?
63500-71-0. It was checked against PubChem on 19 October 2026.
Which published formulas use Florol?
Florol is used in 16 published formulas in the RUŌOD Lab Formula & Accord Library, including Bell Glass, Blue Accord and Cherry Blossom Accord. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 3017432, checked 19 October 2026.
- PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
- dsm-firmenich — Florol® PE 966458 — manufacturer's description.
- The Good Scents Company — Florol — odour database.
- Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 20 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.