About this material
Acetanisole has been described as having a pleasant yet slightly harsh aroma reminiscent of hay, with floral and animal-like undertones.
It brings to mind scents like Hawthorn, Mimosa, and Heliotrope. It remains relatively stable when used in soap and similar mild-alkaline conditions.
This ingredient is commonly found in fragrances with a woody-floral profile such as Cassie, Mimosa, Fougere, Chypre, and New-Mown Hay, as well as in herbaceous citrus fragrances.
Scent character
Highlights from the material’s listed odour profile.
Note position
Heart note · Base note
Material character
A closer lookOdour strength
Listed qualitative strength
Tenacity / substantivity
251 hour(s)
at 10% in DPG
Listed reference conditions
Fragrance development
Heart note · Base note
Illustrative note development · no measured evaporation data
Molecular identity
C9H10O2
CAS-linked compound reference — 4'-Methoxyacetophenone
This compound record is linked to the explicitly recorded CAS number. It is not supplier confirmation of the supplied grade, purity, stereochemistry, isomer proportions or complete composition.
- Reference molecular weight
- 150.17 g/mol
- Reference IUPAC name
- 1-(4-methoxyphenyl)ethanone
More compound properties
Computed and structural reference properties for the named compound. These are not measured supplier specifications or properties of a complete dilution, mixture or batch.
- XLogP (computed)
- 1.7
- Exact mass (Da)
- 150.068079557
- Monoisotopic mass (Da)
- 150.068079557
- Topological polar surface area (Ų)
- 26.3
- Complexity
- 134
- Formal charge
- 0
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 2
- Heavy atoms
- 11
- Isotope atoms
- 0
- Atom stereocentres
- 0
- Bond stereocentres
- 0
- Covalent units
- 1
- SMILES
- CC(=O)C1=CC=C(C=C1)OC
- InChI
- InChI=1S/C9H10O2/c1-7(10)8-3-5-9(11-2)6-4-8/h3-6H,1-2H3
- InChIKey
- NTPLXRHDUXRPNE-UHFFFAOYSA-N
Reference data checked 2026-10-27.
CAS 100-06-1 · reference checked 2026-10-27.
Fragrance allergen reference
Generic regulatory reference only. This is not a supplier allergen declaration, measured composition, allergen-free claim or finished-product labelling assessment.
Raw-material reference based on recorded CAS numbers. A CAS match identifies a reference entry; it does not verify the supplied grade, composition, purity or finished-product compliance. Naturals, bases and mixtures require composition review.
European Union / Northern Ireland
No direct listed-entry CAS match in this jurisdiction’s held reference set. This does not mean the material is allergen-free. Constituents, grouped entries and natural-material composition may require further review.
Finished-cosmetic declaration thresholds: greater than 0.001% leave-on; greater than 0.01% rinse-off. Apply the current target-market rules to the actual complete formulation; no concentration is inferred here.
Commission Regulation (EU) 2023/1545 · Regulation (EU) 2023/1545 with 11 November 2025 corrigendum; checked 2026-10-26.
Held EU transition dates: placing noncompliant products on the market until 2026-07-31; making them available until 2028-07-31. Check applicability and current law for the intended market. 2025 corrigendum.
Great Britain
No direct listed-entry CAS match in this jurisdiction’s held reference set. This does not mean the material is allergen-free. Constituents, grouped entries and natural-material composition may require further review.
Finished-cosmetic declaration thresholds: greater than 0.001% leave-on; greater than 0.01% rinse-off. Apply the current target-market rules to the actual complete formulation; no concentration is inferred here.
Regulation (EC) No 1223/2009, Annex III (Great Britain) · legislation.gov.uk current text checked 2026-10-26.
Current supplier composition or allergen declarations are required to assess naturals, bases, mixtures and actual concentrations. Reference data checked 2026-10-26; bundle 2026-10-27. Supplementary private documents remain separate.
Product specification
| CAS number | 100-06-1 |
|---|---|
| Odour description (decreasing) | Sweet, Floral, Hawthorn, Anisic, Powdery, Balsamic, Acacia |
| Odour strength | Medium |
| Perfumery use | Effective from the smallest traces up to 5%Listed perfumery guidance; this is not an IFRA limit. |
| Substantivity | 251 hour(s) at 10% in DPG |
| Solvent | None |
| Physical state | Solid |
| Synonyms | 1-(4-methoxyphenyl)ethanone, Para-Acetanisole, Acetanisole Crystals |
| Recorded name / preparation | 4'-methoxyacetophenone |
Safety & handling
Hazard statements:
- H302 Harmful if swallowed.
- H315 Causes skin irritation.
- H319 Causes serious eye irritation.
- H412 Harmful to aquatic life with long lasting effects.
Precautionary statements:
- P264 Wash thoroughly after handling.
- P280 Wear protective gloves/protective clothing/eye protection/face protection.
- P270 Do not eat, drink or smoke when using this product.
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell P330 Rinse mouth.
- P305+351+338 IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing.
- P302+352 IF ON SKIN: Wash with soap and water.
- P332+313 If skin irritation occurs: Get medical advice/attention.
- P362 Take off contaminated clothing and wash before reuse.
- P501 Dispose of contents/container in accordance with local regulations.
Professional/Industrial use only.
Datasheets & customer documents
Available documents are attached to eligible completed orders in your account.
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Supplementary documents are supplied only where explicitly listed and available. Check documentation information
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Documentation Supply PolicyIFRA formulation guide
Generic reference only — not an IFRA certificate, compliance decision or use recommendation. The Responsible Person and qualified safety assessor must assess the actual finished formula using current applicable IFRA Standards, supplementary documentation where available and the CPSR.
Raw-material reference based on recorded CAS numbers. A CAS match identifies a reference entry; it does not verify the supplied grade, composition, purity or finished-product compliance. Naturals, bases and mixtures require composition review.
Source: 51st Amendment overview, held source checked 2026-10-21. Bundle 2026-10-27. Individual Standards prevail over the overview.
No direct IFRA overview entry matched the recorded CAS in this held dataset. This does not mean unrestricted use, absence of relevant Standards or compliance. Constituent restrictions may still apply.
IFRA source overview · Individual IFRA Standards and supplementary documentation
Supplier certificates and private documents are separate evidence. Their availability does not determine whether this generic guide is shown. This is a dated local reference, not a live regulatory feed.
Creative ideas to explore
Creative directions, not tested formulas.Petals and peel
With bergamot and a light citrus ideaExplore a brighter version of the floral character using a simple citrus counterpoint. Compare it with the unchanged flower accord and note whether the citrus frames the bloom or becomes the main subject of the sketch.
Stem and blossom
With geranium and leafy notesSketch the flower with a greener setting, keeping leaf and blossom as distinct ideas. Compare a clean floral reference with the greener version to decide how much of the imagined stem and garden belongs in the composition.
Petals over wood
With a transparent wood directionPlace the floral material against a spare wood backdrop and follow the balance through the evaluation. Try a softer wood variation separately, then choose whether your flower needs an open, airy setting or a smoother, more enveloping frame.







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