Description

3-Oxobutanoic Acid 4-Methoxybenzyl Ester is a specialized organic ester compound with the CAS registry number 61312-35-4. This chemical serves as a valuable building block and protected intermediate in advanced synthetic chemistry, enabling the controlled introduction of the acetoacetate moiety. It is primarily utilized by pharmaceutical and fine chemical research and development teams for the synthesis of complex molecules, including potential active pharmaceutical ingredients (APIs) and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the multi-step synthesis of complex drug candidates and active pharmaceutical ingredients (APIs).
• Fine Chemical Synthesis: Used as a protected acetoacetate equivalent in organic synthesis, facilitating reactions where the free acid is incompatible.
• Peptide Chemistry: Potential use in the synthesis of peptide analogs or conjugates requiring specific side-chain functionality.
• Agrochemical Research: Intermediate in the development of novel herbicides, fungicides, or plant growth regulators.
• Material Science: Monomer or precursor in the development of specialized polymers and functional organic materials.
• Academic & Industrial R&D: Versatile reagent for methodological development and exploration of new chemical reactions in laboratory settings.

Basic Information

Product Name	3-Oxobutanoic Acid 4-Methoxybenzyl Ester
CAS No.	61312-35-4
Molecular Formula	C12H14O4
Molecular Weight	222.24 g/mol
Synonyms	4-Methoxybenzyl Acetoacetate; p-Methoxybenzyl Acetoacetate; Acetoacetic Acid 4-Methoxybenzyl Ester; PMB Acetoacetate; 4-Methoxybenzyl 3-Oxobutanoate; 3-Oxobutanoic Acid p-Methoxybenzyl Ester; Acetylacetic Acid 4-Methoxybenzyl Ester
EINECS	Contact for details

Quality Control

Our 3-Oxobutanoic Acid 4-Methoxybenzyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high chemical purity and identity confirmation. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, assay, and impurity profiles as determined by HPLC, GC, and NMR. Our quality systems support development from lab-scale to commercial volumes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Recommended storage temperature is between 2°C and 8°C for long-term stability, or at controlled room temperature for short-term use. Keep away from heat, sparks, and open flame. The container should be kept tightly sealed to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (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.