Description

Diethyl sec-Butylmalonate is a versatile diester compound, widely recognized as a key synthetic intermediate in organic chemistry. Its primary value lies in its role as a building block for the synthesis of more complex molecules, particularly in the production of pharmaceuticals and fine chemicals. This product is essential for research and development laboratories, as well as manufacturing facilities in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create novel compounds.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds containing malonate-derived structures.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and plant growth regulators that require specific alkylmalonate frameworks.
• Fine Chemical Manufacturing: Serves as a precursor for dyes, pigments, flavors, and fragrances where controlled alkylation is necessary.
• Organic Synthesis Reagent: Employed in classic reactions like the malonic ester synthesis for the preparation of substituted acetic acids and other carboxylic acid derivatives.
• Polymer Modifier: Can be used to introduce specific branching or functional groups into polymer chains during specialty polymer production.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new synthetic pathways and creating novel molecular architectures.

Basic Information

Product Name	Diethyl sec-Butylmalonate
CAS No.	83-27-2
Molecular Formula	C11H20O4
Molecular Weight	216.27 g/mol
Synonyms	Diethyl 2-sec-Butylmalonate; sec-Butylmalonic Acid Diethyl Ester; Diethyl (1-Methylpropyl)malonate; Diethyl (sec-Butyl)propanedioate; Propanedioic acid, (1-methylpropyl)-, diethyl ester; Malonic acid, sec-butyl-, diethyl ester; 83-27-2; NSC 404080
EINECS	201-466-5

Quality Control

Our Diethyl sec-Butylmalonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic purity assessment and identity confirmation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent moisture absorption and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.420 - 1.424
Density (20°C)	0.980 - 1.010 g/mL

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