trans-Anethole
trans-Anethole (CAS: 4180-23-8, Formula: C10H12O, Molar Mass: 148.20) is a naturally occurring organic compound recognized for its distinct anise-like aroma. It serves as a valuable building block in chemical synthesis and finds applications in flavour and fragrance industries. Its presence in botanical sources like Ocimum basilicum highlights its significance in phytochemical research and natural product chemistry.
- IUPAC
- 4-Propenylanisole,trans-1-Methoxy-4-(1-propenyl)benzene
- Synonyms
- 4-Propenylanisoletrans-1-Methoxy-4-(1-propenyl)benzene

Flavour and Fragrance Ingredient
Trans-Anethole is widely utilised as a key component in flavour formulations, imparting a sweet, anise, or liquorice note to various food and beverage products. It is also incorporated into perfumes and cosmetics for its pleasant aromatic qualities.
Chemical Synthesis Intermediate
As an organic building block, trans-Anethole is employed in the synthesis of more complex organic molecules. Its alkene and ether functionalities allow for diverse chemical transformations.
Research and Development
This compound is utilized in scientific research, including studies in cell biology and nutrition research, to investigate its biological activities and chemical properties.
| Molecular weight | 148.20 |
|---|---|
| Linear formula | CH3CH=CHC6H4OCH3 |
| Assay | ≥98.0% (GC) |
| Grade | purum |
| Boiling point | 234-237 °C(lit.) |
| Density | 0.988 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.561(lit.)n20/D 1.561 |
| Melting point | 20-21 °C(lit.) |

Hazard statements
- H317May cause an allergic skin reaction
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | 91 °C / 195.8 °F |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 43 |
| Safety statements (S) | 36/37 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is trans-Anethole used for?
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Trans-Anethole is primarily used as a flavour and fragrance ingredient and as an intermediate in chemical synthesis. It is also employed in various research applications.
What are the CAS number and chemical formula for trans-Anethole?
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The CAS number for trans-Anethole is 4180-23-8, and its chemical formula is C10H12O.
What grade and purity does Tech Serve Solutions supply for trans-Anethole?
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Tech Serve Solutions supplies trans-Anethole with a purity of ≥98.0% (GC), conforming to the 'purum' grade. We do not represent this product as USP, BP, or EP grade.
How should trans-Anethole be handled safely?
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Trans-Anethole may cause an allergic skin reaction (H317). It is recommended to wear appropriate personal protective equipment, including eyeshields, faceshields, gloves, and a dust mask type N95 (US).
How is trans-Anethole packed and shipped by TSS?
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Tech Serve Solutions exports and supplies trans-Anethole, ensuring appropriate packaging for safe transit and compliance with international shipping regulations.
How can I request a sample or a quote for trans-Anethole?
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To request a sample or a quote for trans-Anethole, please contact the Tech Serve Solutions sales team through our official channels.
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