Description

1,1'-Azobis(1-Methylethyl) Dipropionate is a high-purity, low-temperature azo initiator widely used in free-radical polymerization processes. Its controlled decomposition profile is critical for achieving consistent polymer chain growth and desired molecular weight distributions. This compound is essential for manufacturers in the polymer, resin, and specialty chemical industries seeking reliable and efficient initiation for monomers such as vinyl acetate, acrylates, and styrene.

Application

• Primary initiator for the polymerization of vinyl monomers including acrylates, methacrylates, and styrene.
• Used in the production of polyvinyl acetate (PVAc) emulsions for adhesives and coatings.
• Essential for the synthesis of acrylic resins used in paints, inks, and industrial finishes.
• Facilitates the manufacture of polystyrene and its copolymers for packaging and insulation materials.
• Employed in the production of pressure-sensitive adhesives (PSAs) and sealants.
• Used as a radical source in organic synthesis and specialty chemical manufacturing.
• Suitable for solution and suspension polymerization processes requiring precise temperature control.

Basic Information

Product Name	1,1'-Azobis(1-Methylethyl) Dipropionate
CAS No.	56623-33-7
Molecular Formula	C14H26N2O4
Molecular Weight	286.37 g/mol
Synonyms	2,2'-Azobis(2-methylpropionate); 2,2'-Azobis(isobutyrate); AIBME; Azobisisobutyrate; V-601; Dimethyl 2,2'-azobis(2-methylpropionate); 1,1'-(Diazene-1,2-diyl)bis(1-methylethyl) dipropionate; Thermoinitiator V-601
EINECS	Contact for details

Quality Control

Our 1,1'-Azobis(1-Methylethyl) Dipropionate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with industry standards. A comprehensive Certificate of Analysis (COA) detailing assay, purity, and impurity profiles is provided with every shipment to guarantee traceability and product integrity for your polymerization processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in the original packaging or opaque containers until use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	40 - 45 °C
Loss on Drying	≤ 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.