Description

Sodium Pentamethylcyclopentadienide is a highly reactive organometallic compound and a versatile reagent in advanced synthetic chemistry. Its value lies in its role as a robust pentamethylcyclopentadienyl (Cp*) anion source, enabling the synthesis of stable, sterically hindered metallocene complexes. This compound is essential for researchers and manufacturers in the fields of organometallic catalysis, materials science, and pharmaceutical intermediate synthesis, where precise ligand control is critical.

Application

• Precursor for Metallocene Catalysts: Key starting material for synthesizing Group 4 (Ti, Zr, Hf) and lanthanide-based pentamethylcyclopentadienyl complexes used in olefin polymerization and organic transformations.
• Organometallic Synthesis: Employed in the preparation of stable, well-defined organometallic compounds for academic research and industrial process development.
• Materials Science: Used in the development of novel molecular precursors for chemical vapor deposition (CVD) and the creation of advanced inorganic materials.
• Pharmaceutical Intermediates: Serves as a building block in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs) requiring specific steric and electronic properties.
• Ligand Exchange Reactions: Facilitates the introduction of the bulky Cp* ligand to modulate the reactivity and stability of metal centers.

Basic Information

Item	Details
Product Name	Sodium Pentamethylcyclopentadienide
CAS No.	40585-51-1
Molecular Formula	C10H15Na
Molecular Weight	158.22 g/mol
Synonyms	Sodium Pentamethylcyclopentadienyl; Sodium (Pentamethylcyclopentadienide); Sodium 1,2,3,4,5-Pentamethyl-2,4-cyclopentadien-1-ide; Cp*Na; Pentamethylcyclopentadienylsodium; Sodium 1,2,3,4,5-Pentamethylcyclopentadienyl; NaCp*
EINECS	Contact for details

Quality Control

Our Sodium Pentamethylcyclopentadienide is produced and handled under stringent quality protocols to ensure batch-to-batch consistency and high reactivity. Each lot undergoes comprehensive analytical characterization, including NMR spectroscopy and titration methods, to verify identity and purity. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and R&D documentation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (argon or nitrogen) at 2-8°C or as specified on the label. This material is hygroscopic (moisture-sensitive) and easily oxidized; it must be handled and stored using strict air-free techniques to maintain stability and purity.

Specification

Item	Specification
Appearance	Off-white to beige powder or crystalline solid
Identification (NMR)	Conforms to structure
Purity (Assay)	≥ 95% (by Titration)
Solubility	Soluble in THF, DME, toluene

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.