Description

Ethyl 3,3-Dimethylacrylate is a versatile acrylic ester monomer characterized by its unique gem-dimethyl substituted structure. This compound is a valuable building block in organic synthesis and polymer chemistry, offering enhanced steric hindrance and tailored reactivity. It is primarily utilized by manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for creating advanced intermediates and functional materials.

Application

• Pharmaceutical Intermediates: Serves as a key synthon in the production of active pharmaceutical ingredients (APIs), particularly for compounds requiring sterically hindered ester functionalities.
• Agrochemical Synthesis: Used in the manufacture of advanced pesticides and herbicides, where its structural motif contributes to improved biological activity and stability.
• Specialty Polymer Monomer: Acts as a co-monomer to introduce bulky side groups into acrylic polymers, modifying properties like glass transition temperature (Tg), solubility, and mechanical strength.
• Fine Chemical Production: Employed in organic synthesis for Michael additions, cyclization reactions, and the construction of complex molecular architectures.
• Cross-linking Agent: Utilized in formulations for coatings, adhesives, and resins to enhance cross-link density and network formation.
• UV-Curable Resins: Incorporated into formulations for inks and coatings that cure under ultraviolet light, benefiting from its reactive acrylate group.

Basic Information

Item	Detail
Product Name	Ethyl 3,3-Dimethylacrylate
CAS No.	638-10-8
Molecular Formula	C7H12O2
Molecular Weight	128.17 g/mol
Synonyms	Ethyl 3,3-Dimethylacrylate; 3,3-Dimethylacrylic Acid Ethyl Ester; Ethyl β,β-Dimethylacrylate; Ethyl 3-Methylbut-2-enoate; 2-Butenoic acid, 3-methyl-, ethyl ester; Ethyl 3-Methylcrotonate; NSC 66408
EINECS	211-340-0

Quality Control

Our Ethyl 3,3-Dimethylacrylate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory needs.

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 acids 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	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.425 - 1.435
Density (20°C)	0.910 - 0.930 g/mL

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