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Description and features

Iniper AIVN SG-2000 (Azobis-methylbutyronitrile) is an white solid which has C10H16N4 as chemical formula.It finds its application as polymerzation initiator of amongst others acrylics and styrenes. Further it is also used in the production of foams to create nitrogen bubbles. Iniper 67 is significantly more soluble in organic solvents than Iniper 64 (AIBN) .

Azobis-methylbutyronitrile is also known as 2,2’-Azobis(2-methylbutyronitrile), 2,2′-(Diazene-1,2-diyl)bis(2-methylbutanenitrile) and AMBN.


Europe: Iniper AIVN 2000 is ➔ on stock in our local warehouses. Our lead time is about one week if delivered in 20 KG fiber drums.

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

This substance (CAS: 13472-08-7) has been registered under REACH (EC) 1907/2006.

Product Identification

CAS number13472-08-7
EC number 236-740-8
EC name2,2′-azobis[2-methylbutyronitrile]
HS code2927 00 00


AppearanceWhite powder / granules
Assay≥98 %
Insoluble in isopropanol matter ≤0.20 %
Loss on drying ≤0.50 %
Water content ≤0.50 %


Iniper AIVN 2000 (AMBN / azobis-methylbutyronitrile) can be used for polymerization of methyl methacrylate, acrylics (coating), acrylamide, vinyl acetate, styrene and vinyl chloride.


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


Store azobis-methylbutyronitrile (AIVN) 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 AIVN 2000 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 C10H16N4
Molecular weight 192.27 g/mol
Smiles notation CCC(C)(C#N)N=NC(C)(CC)C#N
Structural formula Chemical name: 2,2’-Azobis(2-methylbutyronitrile) CAS number: 13472-08-7

Physicochemical information

Boiling point Decomposes before boiling
Density 1.130 kg/m3
SADT 45 °C
Melting point 48 ~ 52 °C
Partition coefficient (log Pow) 2.07 @ 20 °C (pH ≥ 6.99 – ≤ 7.19)
Solubility in water 392 ± 5 mg/L @ 20 °C
Vapor pressure 0.006 Torr @ 25 °C / 0.78 Pa

Azobis-methylbutyronitrile | AIVN | CAS: 13472-08-7 | 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.