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Description and features

Iniper 52 (ABVN / 2,2′-Azobis (2,4 dimethylvaleronitryle) is an odorless white solid which has C14H24N4 as chemical formula. This FRS (free radical source) is used as polymerization initiator. Iniper 52 is used for low temperature polymerization and is soluble in a variety of organic solvents.

2,2′-Azobis (2,4 dimethylvaleronitrile is also known as ADVN, 2-(2-Cyano-4-methylpentan-2-yl)diazenyl-2,4-dimethylpentanenitrile and 2-(2-Cyano-4-methylpentan-2-yl)diazenyl-2,4-dimethylpentanenitrile.


Europe: Iniper 52 (ABVN) is ➔ on stock in our local warehouses. Our lead time is about one week if delivered in 20 KG carton boxes.

Canada, United States, South America, South Africa and other markets can also be served, please contact our sales department for more details.

➔ Limited available in the European Union as this product has not been REACH registered (yet).

Product Identification

CAS number4419-11-8
EC number 224-583-8
HS code2927 00 00
EC name2,2′-azobis[2,4-dimethylvaleronitrile]


AppearanceWhite crystals
Assay ≥98.00 %
Cl ≤0.02 %
Color APHA≤ 15
Acetone insoluble ≤0.02 %
Water content ≤0.50%


Iniper 52 (2,2′-Azobis (2,4 dimethylvaleronitryle)) can be used for polymerization of acrylics sheets and acrylic resins.


Available packaging: 20 KG carton boxes.
Special packaging is available on request.


Store 2,2′-Azobis (2,4 dimethylvaleronitryle) (ABVN) in a cool, dry and well-ventilated area and in line with legal requirements.
Keep away from heat sources, ignition sources.


A Material Safety Data Sheets (MSDS) is available for Iniper 52 (ABVN) and all other products supplied by Vesta Chemicals BV.

An MSDS describes the hazards of a product and explains how a product can be safely handled, used and stored. Besides it provides important regulatory and emergency response information for the purchased product.

Molecular and structural information

Molecular formula C14H24N4
Molecular weight 248.37 g/mol
Smiles notation CC(C)CC(C)(C#N)N=NC(C)(CC(C)C)C#N
Structural formula Chemical name: 2,2′-Azobis (2,4 dimethylvaleronitrile) | CAS number: 4419-11-8

Physicochemical information

Boiling point Decomposes before boiling
Density 930 kg/m3
Melting point 45-70 °C
Partition coefficient (log Pow) 4.86 @ 20 °C
Solubility in water Insoluble
Vapor pressure 0.000164 mmHg @ 25°C

2,2′-Azobis (2,4 dimethylvaleronitryle)| ABVN | CAS: 4419-11-8 | Disclaimer. This information is supplied solely for informational purposes and Vesta Chemicals bv makes no guarantees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Terms of Sale. Nothing in this document is legal advice or is a substitute for competent legal advice.