1,2,3,4,5-Pentamethylcyclopentadiene
1,2,3,4,5-Pentamethylcyclopentadiene (CAS: 4045-44-7; C10H16) is a cyclic organic compound with a molecular weight of 136.23 g/mol. This alkene serves as a valuable building block in chemical synthesis, particularly in organometallic chemistry and the preparation of various ligands. It is supplied by Tech Serve Solutions with an assay of ≥94.0% (GC), suitable for research and development purposes.
- Synonyms
- 4,5-Pentamethylcyclopentadiene4045-44-7C10H16
Organometallic Chemistry Precursor
1,2,3,4,5-Pentamethylcyclopentadiene is a key precursor for synthesising organometallic compounds. Its cyclopentadienyl ligand, when deprotonated, readily coordinates with metal centres, forming stable metallocenes and related complexes used in catalysis and materials science.
Ligand Synthesis
The compound is instrumental in the synthesis of substituted cyclopentadienyl ligands. These ligands are crucial in tuning the electronic and steric properties of metal catalysts, impacting their reactivity and selectivity in various organic transformations.
Organic Synthesis Building Block
As a versatile cyclic alkene, it functions as a foundational building block in complex organic molecule synthesis. Its reactive double bonds and methyl substituents allow for diverse chemical modifications and derivatizations.
| Molecular weight | 136.23 |
|---|---|
| Empirical formula | C10H16 |
| Assay | ≥94.0% (GC) |
| Boiling point | 58 °C/13 mmHg(lit.) |
| Density | 0.87 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.474(lit.)n20/D 1.475 |
Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 44 °C / 111.2 °F |
| Transport (UN / ADR) | UN 3295C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
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 1,2,3,4,5-Pentamethylcyclopentadiene used for?
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1,2,3,4,5-Pentamethylcyclopentadiene is primarily used as a precursor in organometallic chemistry for synthesising ligands and metal complexes, and as a building block in organic synthesis.
What is the CAS number and molecular formula for 1,2,3,4,5-Pentamethylcyclopentadiene?
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The CAS number is 4045-44-7, and the molecular formula is C10H16.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,2,3,4,5-Pentamethylcyclopentadiene with an assay of ≥94.0% (GC). This is a technical grade suitable for research and development; TSS does not represent it as USP, BP, or EP grade.
How should 1,2,3,4,5-Pentamethylcyclopentadiene be handled?
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1,2,3,4,5-Pentamethylcyclopentadiene is a flammable liquid and vapour (H226). Handle in a well-ventilated area away from ignition sources, using appropriate personal protective equipment including eyeshields, gloves, and respiratory protection.
Is 1,2,3,4,5-Pentamethylcyclopentadiene a controlled substance?
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Based on the provided data, there is no indication that 1,2,3,4,5-Pentamethylcyclopentadiene (CAS: 4045-44-7) is a controlled substance.
How is this chemical shipped and exported?
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1,2,3,4,5-Pentamethylcyclopentadiene is shipped under UN 3295C, Hazard Class 3, Packing Group III. Tech Serve Solutions is experienced in exporting chemicals globally, adhering to all relevant shipping regulations.
How can I request a sample or quote?
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To request a sample or a quote for 1,2,3,4,5-Pentamethylcyclopentadiene, please visit the Tech Serve Solutions website or contact our sales team directly through the provided channels.
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