Description

Butyl 2-Methylcrotonate is a versatile ester derivative of 2-methylcrotonic acid, valued for its role as a chemical intermediate and monomer. Its primary commercial significance lies in its utility in synthesizing specialty polymers, resins, and fine chemicals. This product is essential for manufacturers and R&D facilities in the polymer, agrochemical, and fragrance industries seeking reliable, high-purity building blocks.

Application

• Polymer & Resin Synthesis: Acts as a key monomer or co-monomer in the production of specialty acrylic polymers and coatings, imparting specific properties like flexibility or weather resistance.
• Chemical Intermediate: Serves as a crucial building block in organic synthesis for pharmaceuticals, agrochemicals, and other fine chemicals.
• Flavor & Fragrance Industry: Used in the formulation of synthetic esters that contribute fruity or floral notes to fragrances and flavoring agents.
• Adhesive & Sealant Formulations: Incorporated to modify the performance characteristics of industrial adhesives and sealants.
• Plasticizer Production: Employed in the synthesis of certain ester-based plasticizers for polymers.
• Research & Development: Utilized in academic and industrial R&D labs for exploring new synthetic pathways and material properties.

Basic Information

Product Name	Butyl 2-Methylcrotonate
CAS No.	7785-64-0
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	Butyl 2-Methylbut-2-enoate; 2-Butenoic acid, 2-methyl-, butyl ester; Crotonic acid, 2-methyl-, butyl ester; Butyl tiglate; Tiglic acid butyl ester; Butyl (E)-2-methyl-2-butenoate; Butyl (E)-2-methylcrotonate
EINECS	232-078-5

Quality Control

Our Butyl 2-Methylcrotonate is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including gas chromatography (GC), to ensure high purity and consistency. A detailed Certificate of Analysis (COA) confirming identity, assay, and impurity profiles is provided with each shipment to guarantee it meets your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and open flame. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and maintain product integrity. Recommended storage temperature is 2-25°C.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.428 - 1.432
Density (20°C)	0.890 - 0.910 g/mL
Water Content (KF)	≤ 0.1%

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