Description

Mono-Benzyl Malonate CAS NO 40204-26-0 is a key organic intermediate, specifically the monobenzyl ester of malonic acid. This compound matters for its versatile role as a building block in the synthesis of complex molecules, pharmaceuticals, and fine chemicals. Industries that need it include pharmaceutical R&D, agrochemical manufacturing, and specialty chemical producers who require high-purity intermediates for coupling and esterification reactions.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring malonate ester chemistry.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where the malonate moiety is incorporated.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, flavors, and fragrances requiring controlled esterification steps.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialized polymers and resins.
• Organic Synthesis Reagent: Employed in Knoevenagel condensations and other carbon-carbon bond forming reactions in research and development.
• Chemical Research: Utilized in academic and industrial labs for developing new synthetic methodologies and novel compounds.

Basic Information

Item	Details
Product Name	Mono-Benzyl Malonate
CAS No.	40204-26-0
Molecular Formula	C11H12O4
Molecular Weight	208.21 g/mol
Synonyms	Benzyl Hydrogen Malonate; Monobenzyl Malonate; Malonic Acid Monobenzyl Ester; Benzyl Malonate; 2-(Benzyloxy)-2-oxoacetic Acid; 1-(Benzyloxy)-1,3-dioxopropan-2-one; Benzyloxyoxoacetic Acid; (Benzyloxy)oxoacetic Acid
EINECS	Contact for details

Quality Control

Our Mono-Benzyl Malonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidising agents. The container must be kept tightly closed to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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