Vanillin
Sweet, Vanilla, Vanillin, Creamy, Chocolate & Phenolic
About this material
Slightly less chocolaty than Ethyl Vanillin
It boosts the natural vanilla effect in a composition and the power is demonstrated in dilutions of this material.
Among the more common perfume materials, it is one of the most tenacious odours known. It’s intense sweetness is utilised in industrial masking odours and in high value luxury perfumes and can be used in almost any type of fragrance, from Woody or herbaceous to Oriental or Floral.
Chemically one of the purest materials used in perfumery.
Low amounts in functional products such as face creams and soaps is no longer considered a hazard as it once was, although discolouration can still occur when higher volumes are used.
Sold here in its pure form.
Outstanding tenacity.
Scent character
Highlights from the material’s listed odour profile.
Note position
Base note
Material character
A closer lookOdour strength
Listed qualitative strength
Tenacity / substantivity
400 hour(s)
at 20%
Listed reference conditions
Fragrance development
Base note
Illustrative note development · no measured evaporation data
Molecular identity

C8H8O3
CAS-linked compound reference — Vanillin
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
- 152.15 g/mol
- Reference IUPAC name
- 4-hydroxy-3-methoxybenzaldehyde
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)
- 1.2
- Exact mass (Da)
- 152.047344113
- Monoisotopic mass (Da)
- 152.047344113
- Topological polar surface area (Ų)
- 46.5
- Complexity
- 135
- Formal charge
- 0
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 2
- Heavy atoms
- 11
- Isotope atoms
- 0
- Atom stereocentres
- 0
- Bond stereocentres
- 0
- Covalent units
- 1
- SMILES
- COC1=C(C=CC(=C1)C=O)O
- InChI
- InChI=1S/C8H8O3/c1-11-8-4-6(5-9)2-3-7(8)10/h2-5,10H,1H3
- InChIKey
- MWOOGOJBHIARFG-UHFFFAOYSA-N
Reference data checked 2026-10-27.
CAS 121-33-5 · 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
- Vanillin — Annex III entry 346; single-substance reference. Recorded CAS match only; composition and scope require assessment.
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 | 121-33-5 |
|---|---|
| Odour description (decreasing) | Sweet, Vanilla, Vanillin, Creamy, Chocolate & Phenolic |
| Odour strength | Medium |
| Perfumery use | Effective from the smallest traces up to 10%Listed perfumery guidance; this is not an IFRA limit. |
| Substantivity | 400 hour(s) at 20% |
| Solvent | None |
| Physical state | Solid |
| Synonyms | 4-hydroxy-3-methoxybenzaldehyde |
Safety & handling
Hazard statements:
- H319 Causes serious eye irritation.
Precautionary statements:
- P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
- P305+351+338 IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing.
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.Sweetness and grain
With sandalwood and dry wood notesExplore a gourmand sketch framed by wood rather than more sweetness. Compare a creamy wood direction with a drier one, deciding whether the material works best as the centre of the idea or as a softer background.
Citrus confection
With bergamot and a peel directionTry a contrast between the gourmand character and a citrus opening. Compare a peel-led version with a sweeter reference, looking for a balance that evokes your intended confection without turning every part of the composition sweet.
Petal cream
With rose and a soft floral accordSet the gourmand material beside a familiar flower for a petal-and-cream concept. Evaluate the floral reference and the sweeter variation together, then choose whether the result should remain recognisably floral or move towards a dessert impression.







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