Description

Butanoic Acid, 4-(Bromotriphenylphosphoranyl)-, Ethyl Ester is a specialized organophosphorus compound, specifically a phosphonium ylide derivative, widely utilized as a key reagent in advanced organic synthesis. Its primary value lies in its role as a Wittig reagent, enabling the efficient and stereoselective construction of carbon-carbon double bonds, which is fundamental for producing complex molecular architectures. This high-purity intermediate is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors, where precise control over olefin geometry is critical for developing active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate Synthesis: A critical reagent for the Wittig olefination step in the production of complex drug candidates, including those with specific alkene configurations.
• Agrochemical Active Ingredient Development: Used in the synthesis of novel herbicides, insecticides, and fungicides that require specific alkene functionalities.
• Advanced Material Precursor: Employed in the creation of organic semiconductors, liquid crystals, and polymers with tailored optical or electronic properties.
• Academic & Industrial R&D: Serves as a versatile building block in research laboratories for method development and the synthesis of novel organic compounds.
• Fine Chemical Manufacturing: Integral to the multi-step synthesis of flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	Butanoic Acid, 4-(Bromotriphenylphosphoranyl)-, Ethyl Ester
CAS No.	1201147-00-3
Molecular Formula	C30H28BrO2P
Molecular Weight	531.42 g/mol
Synonyms	Ethyl 4-(Bromotriphenylphosphoranyl)butanoate; (4-Ethoxy-4-oxobutyl)(triphenyl)phosphonium Bromide; Triphenyl(4-ethoxy-4-oxobutyl)phosphonium Bromide; Wittig Reagent - Ethyl 4-(Triphenylphosphoranylidene)butanoate Hydrobromide; Ethyl 4-(Triphenylphosphonio)butanoate Bromide; 4-(Bromotriphenylphosphoranyl)butyric Acid Ethyl Ester; P,P,P-Triphenyl-P-[3-(ethoxycarbonyl)propyl]phosphonium Bromide
EINECS	Contact for details

Quality Control

Our Butanoic Acid, 4-(Bromotriphenylphosphoranyl)-, Ethyl Ester is manufactured under strict quality management systems to ensure batch-to-batch consistency and high chemical purity. Each lot is subjected to rigorous analytical testing, including NMR, HPLC, and elemental analysis, to confirm identity, potency, and impurity profiles. Certificates of Analysis (COA) detailing all specifications and test results are provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) when opening the container to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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