Description

Butylmethylmagnesium is a highly reactive organomagnesium compound, specifically a Grignard reagent, with the CAS number 70776-35-1. It serves as a powerful nucleophile and strong base, enabling critical carbon-carbon bond formation in complex organic synthesis. This reagent is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries seeking to introduce butyl or methyl groups or create new molecular architectures.

Application

Butylmethylmagnesium is a versatile building block in synthetic chemistry. Key applications include:

• Pharmaceutical Intermediate Synthesis: Used in the production of active pharmaceutical ingredients (APIs) for introducing alkyl groups and constructing complex carbon skeletons.
• Agrochemical Manufacturing: Employed in the synthesis of herbicides, fungicides, and pesticides that require specific alkylated structures.
• Fine Chemical Production: Acts as a key reagent for creating specialty chemicals, flavors, fragrances, and performance materials.
• Polymer & Material Science: Utilized in the synthesis of novel monomers, catalysts, and organometallic precursors for advanced polymers and functional materials.
• Academic & Industrial R&D: A fundamental tool for methodological development and exploratory synthesis in chemistry laboratories worldwide.

Basic Information

Product Name	Butylmethylmagnesium
CAS No.	70776-35-1
Molecular Formula	C5H11Mg (typically represented in solution as a complex)
Molecular Weight	95.45 g/mol (for C5H11Mg)
Synonyms	Magnesium, butylmethyl-; Butyl(methyl)magnesium; Methylbutylmagnesium; Butylmethylmagnesium solution; Grignard reagent C-5; Butyl-methyl-magnesium
EINECS	Contact for details

Quality Control

Our Butylmethylmagnesium is produced and handled under stringent quality systems. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and reliable performance. Key parameters such as concentration (typically assayed by titration), identity, and solution stability are verified. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to guarantee compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and hygroscopic (moisture-sensitive) nature, this product must be stored under an inert atmosphere (argon or nitrogen) in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C for extended stability. Keep away from heat, sparks, open flames, and incompatible materials such as water, alcohols, acids, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to light yellow solution
Concentration (in specified solvent, e.g., THF or Ether)	Typically 1.0M - 3.0M (Custom concentrations available)
Assay (Titration)	≥ 95% (of stated concentration)
Identification (IR/NMR)	Conforms to structure
Water Content (Karl Fischer)	< 100 ppm

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