α-Terpinene
Alpha-Terpinene (CAS: 99-86-5) is a cyclic terpene with the molecular formula C10H16 and a molecular weight of 136.23 g/mol. This colourless liquid is characterised by its alkene functionality and is found naturally in various plants. Its primary applications lie in chemical synthesis and as a building block in organic chemistry, contributing to the creation of more complex molecules.
- IUPAC
- 1-Isopropyl-4-methyl-1,3-cyclohexadiene,p-Mentha-1,3-diene,alpha-Terpinene
- Synonyms
- 1-Isopropyl-4-methyl-1,3-cyclohexadienep-Mentha-1,3-dienealpha-Terpinene
Chemical Synthesis
Alpha-Terpinene serves as a valuable reagent and intermediate in organic synthesis. Its diene structure allows it to participate in various addition reactions, making it useful for constructing diverse molecular frameworks.
Building Block
As a readily available cyclic terpene, alpha-Terpinene is employed as a fundamental building block in the synthesis of natural products and complex organic molecules. Its inherent structure provides a useful starting point for derivatization.
Research and Development
In R&D settings, alpha-Terpinene is utilised for exploring novel synthetic pathways and investigating the properties of terpene-derived compounds. Its presence in natural sources also makes it a subject of study in phytochemistry.
| Molecular weight | 136.23 |
|---|---|
| Empirical formula | C10H16 |
| Assay | 85% |
| Boiling point | 173-175 °C(lit.) |
| Density | 0.837 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.478(lit.) |
| Solubility | ethanol: soluble100 mg/mL, clear, colorless |
| Storage temperature | −20°C |
Hazard statements
- H226Flammable liquid and vapour
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 50 °C / 122 °F |
| Transport (UN / ADR) | UN 2319 3 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 10-22-36/37/38-51/53 |
| Safety statements (S) | 26-36/37-61-62 |
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 alpha-Terpinene used for?
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Alpha-Terpinene is primarily used in chemical synthesis and as a building block for organic molecules. It is also utilized in research and development settings.
What is the CAS number and chemical formula for alpha-Terpinene?
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The CAS number for alpha-Terpinene is 99-86-5, and its chemical formula is C10H16.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies alpha-Terpinene with an assay of 85%. We do not represent this product as USP, BP, or EP grade.
How should alpha-Terpinene be handled safely?
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Alpha-Terpinene is a flammable liquid and vapour (H226), harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). It is also toxic to aquatic life with long-lasting effects (H411). Handle with appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection. Ensure adequate ventilation and avoid release into the environment.
How is alpha-Terpinene packed, shipped, and exported?
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Alpha-Terpinene is packed and shipped according to international regulations for hazardous materials, including UN 2319, Class 3, Packing Group III. Tech Serve Solutions is experienced in global export.
How can I request a sample or quote for alpha-Terpinene?
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Please contact our sales team via our website or direct email to request a sample or a quotation for alpha-Terpinene.
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