Nopyl Acetate

What Nopyl Acetate smells like

Nopyl acetate is a sweet, woody-fruity ester. Takasago describes it as sweet and woody-fruity; supplier specifications list woody, floral, sweet and fruity; Moellhausen woody and herbal with coniferous connotations. Arctander, quoted by Pell Wall Perfumes, describes a sweet, woody-fruity odour of moderate tenacity — less sweet, less fruity and more woody than linalyl acetate.

Leading note

Sweet woody-fruity

Supporting facets

Floral

Faint facets

Piney, herbal

Character

Soft, sweet, woody

• woody
• fruity
• sweet
• piney

What makes Nopyl Acetate distinctive

A woodier linalyl acetate: the same sweet, fruity freshness pushed towards wood and a hint of pine.

How Nopyl Acetate is used

Used as an inexpensive sweet woody-fruity blender in functional and fine fragrance.

Typical role: blender (smooths the joins between other materials).

How Nopyl Acetate differs from similar materials

Linalyl Acetate*

Arctander describes nopyl acetate as less sweet, less fruity and more woody than linalyl acetate. (compared directly by a cited source)

Isobornyl Acetate

Isobornyl acetate is a clean, camphoraceous pine; nopyl acetate is a sweet woody-fruity ester.

An asterisk marks a difference that a cited source states directly. The others compare the published descriptions of each material. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.

Identity and classification

Type

Aroma chemical

Origin

Semi-synthetic

Odour family

Woody / Fruity

Note position

Heart note

Physical form at room temperature

Liquid

CAS number

128-51-8

Molecular formula

C13H20O2

Molecular weight

208.3 g/mol

IUPAC name

2-[(1R,5S)-6,6-dimethyl-2-bicyclo[3.1.1]hept-2-enyl]ethyl acetate

The CAS number, formula and molecular weight are taken from PubChem compound 929336, 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 classify it (1,716 reports): H317 may cause an allergic skin reaction (81.4% of reports); H319 causes serious eye irritation (81.4% of reports); H411 toxic to aquatic life with long lasting effects (81.4% of reports); H412 harmful to aquatic life with long lasting effects (18.6% of reports). A skin sensitiser classification concerns handling the neat material and the dose in a finished product; the IFRA Standards, where they apply, set the limits. 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

• beta-Pinene

  Aroma chemical · Aromatic / Woody — piney, woody, dry, green

• Verdyl Acetate

  Aroma chemical · Green / Fruity — green, woody, fruity, fresh

• Vertenex

  Aroma chemical · Woody / Floral — woody, floral, orris, soft

• Isobornyl Acetate

  Aroma chemical · Aromatic / Woody — pine, coniferous, balsamic, fresh

Used in formulas and accords

Used in 2 published formulas

Nopyl Acetate is an ingredient in 2 perfume formulas in the Formula & Accord Library.

RUŌOD House Originals

Original compositions by RUŌOD House.

• Citrus Censer

  RUŌOD House Creation

• Orange Soda Sunset

  RUŌOD House Original

Further reading

• Woody Notes in Perfumery: Naturals and Aroma Chemicals

  A map of woody materials — cedarwoods, sandalwood, vetiver, patchouli, smoky woods and woody aroma chemicals — and how to build a woody base.

Questions about Nopyl Acetate

Sources

• PubChem — compound 929336, checked 19 October 2026.
• PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
• Perflavory (The Good Scents Company) — nopyl acetate (with Takasago, Moellhausen and Arctander via Pell Wall) — odour database.
• Parchem — nopyl acetate — distributor's description.
• Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 21 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.