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Description and features
Iniper 50 (2,2′-Azobis(2-methylpropionamidine)dihydrochloride) is a white granule which has C8H20Cl2N6 as chemical formula.
It is an watersoluble azo-initiator which is used in the production of coagulants and superabsorbent polymers.

Iniper 50 (AIBA) is also known as 2,2′-(Diazene-1,2-diyl)bis(2-methylpropanimidamide) dihydrochloride, 2,2′-Azobis(2-amidinopropane) dihydrochloride and alpha,alpha’-Azodiisobutyramidine dihydrochloride.
Product information

CAS number2997-92-4
EC number 221-70-0
HS code2927 00 00


AppearanceWhite granules
Assay≥98.00 %
Melting point170 ~ 175 °C
Volatility≤1.00 %
Color APHA≤100

Molecular and structural information

Molecular formulaC8H20Cl2N6
Molecular weight271.19 g/mol
Smiles notationCC(C)(C(=N)N)N=NC(C)(C)C(=N)N.Cl.Cl
InChi keyInChI=1S/C8H18N6.2ClH/c1-7(2,5(9)10)13-14-8(3,4)6(11)12;;/h1-4H3,(H3,9,10)(H3,11,12);2*1H
Structural formula:

Physicochemical information

Density1.2135 ± 0.0002 g/cm3
Melting point155~168 °C
Partition coefficient (log Pow)<0.30 @ 25 °C
SADT110 °C
Solubility in waterSoluble

Iniper 50 (2,2′-Azobis(2-methylpropionamidine)dihydrochloride) can be used for the following applications:

  • Polymerization of acrylamide
  • Polymerization of acrylonitrile
  • Polymerization of acrylic acid

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

Shipment Info
Iniper 50 (2,2′-Azobis(2-methylpropionamidine)dihydrochloride) can be stocked in Europe and United States upon your request.

Store 2,2′-Azobis(2-methylpropionamidine)dihydrochloride (AIBA) in a cool, dry and well-ventilated area and in line with legal requirements.
Keep away from heat sources, ignition sources. Store below 40 °C.

This substance (CAS: 2797-92-4) has been pre-registered under REACH (EC) 1907/2006.

A Material Safety Data Sheets (MSDS) is available for Iniper 50 (AIBA) and all other products supplied by Vesta Intracon 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.

2,2′-Azobis(2-methylpropionamidine)dihydrochloride | AIBA | (CAS: 2997-92-4). This information is supplied solely for informational purposes and Vesta Intracon 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.