trans-2-Pentene
trans-2-Pentene (CAS 646-04-8) is an acyclic alkene with the linear formula C2H5CH=CHCH3 and a molecular weight of 70.13 g/mol. This organic building block is characterised by its high purity, assaying at 99%. It is primarily utilised in chemical synthesis and research applications, including the determination of hydroxyl radical (OH) levels through decay methods. Its properties make it a valuable reagent for various laboratory procedures.
Chemical Synthesis
As an alkene building block, trans-2-Pentene is employed in organic synthesis for constructing more complex molecules. Its specific stereochemistry and reactivity make it suitable for targeted synthetic pathways.
Research Applications
This compound has been utilised in scientific research, notably for the calculation of hydroxyl (OH) radical levels via the decay method. It serves as a useful probe in atmospheric chemistry studies.
Organic Building Block
trans-2-Pentene functions as a fundamental organic building block in various chemical transformations. Its defined structure allows for predictable reactions in laboratory settings.
| Molecular weight | 70.13 |
|---|---|
| Linear formula | C2H5CH=CHCH3 |
| Assay | 99% |
| Boiling point | 37 °C(lit.) |
| Density | 0.649 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.379(lit.) |
| Vapour pressure | 8.17 psi (20 °C) |
| Melting point | −140 °C(lit.) |
| Application | trans-2-Pentene has been used for the calculation of OH levels by the decay method1. |
Hazard statements
- H224Extremely flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P301IF SWALLOWED
- P305IF IN EYES
- P331Do NOT induce vomiting
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | -18 °C / -.4 °F |
| Transport (UN / ADR) | UN 3295BE 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-36/37/38-65 |
| Safety statements (S) | 9-16-26-29-33-36-62 |
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 trans-2-Pentene primarily used for?
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trans-2-Pentene is primarily used in chemical synthesis and research applications, including the determination of hydroxyl radical (OH) levels.
What are the CAS number and chemical formula for trans-2-Pentene?
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The CAS number for trans-2-Pentene is 646-04-8 and its linear chemical formula is C2H5CH=CHCH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies trans-2-Pentene with an assay of 99%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated in the product data.
How should trans-2-Pentene be handled safely?
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trans-2-Pentene is a highly flammable liquid and vapour (H224) and may be fatal if swallowed or enters airways (H304). It causes skin irritation (H315) and serious eye irritation (H319), and may cause respiratory irritation (H335). Always use appropriate personal protective equipment, including eyeshields, gloves, and a full-face respirator where necessary, and ensure adequate ventilation. Handle in accordance with GHS02, GHS07, and GHS08 hazard classifications.
Is trans-2-Pentene a controlled substance?
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The provided data does not indicate that trans-2-Pentene is a controlled substance. Please consult relevant local regulations for specific guidance.
How is trans-2-Pentene typically packed and shipped?
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trans-2-Pentene is shipped as a hazardous material, UN 3295, Class 3, Packing Group II. Packaging complies with all applicable transport regulations for international export. Specific container types are available upon request.
How can I request a sample or quote for trans-2-Pentene?
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To request a sample or a quote for trans-2-Pentene, please contact our sales department through the TSS website or by calling our customer service line.
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