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Merck

441090

2,2′-Azobis(2-methylpropionitrile)

98%

Synonym(s):

α,α′-Azoisobutyronitrile, AIBN, Azobisisobutyronitrile, Free radical initiator

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About This Item

Linear Formula:
(CH3)2C(CN)N=NC(CH3)2CN
CAS Number:
78-67-1
Molecular Weight:
164.21
UNSPSC Code:
12162002
NACRES:
NA.23
PubChem Substance ID:
24867330
EC Number:
201-132-3
Beilstein/REAXYS Number:
1708400
MDL number:
MFCD00013808

Product Name

2,2′-Azobis(2-methylpropionitrile), 98%

InChI key

OZAIFHULBGXAKX-VAWYXSNFSA-N

InChI

1S/C8H12N4/c1-7(2,5-9)11-12-8(3,4)6-10/h1-4H3/b12-11+

SMILES string

CC(C)(\N=N\C(C)(C)C#N)C#N

assay

98%

form

powder

mp

102-104 °C (dec.) (lit.)

storage temp.

2-8°C

Quality Level

200

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Application

2,2′-Azobis(2-methylpropionitrile) can be used as an initiator in the preparation of:
  • Polystyrene by soap-free emulsion polymerization.
  • Molecularly imprinted polymer(MIP) using 1-vinyl imidazole. MIP can be used to quantify acid violet 19 dye in river water samples.

Preparation Note

Warning: these products are subject to the Explosives Act and must be transported refrigerated - additional costs for transport will apply.

pictograms

FlameExclamation mark
GHS02,GHS07

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Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Self-react. C

supp_hazards

EUH044

Storage Class

4.1A - Other explosive hazardous materials

wgk

WGK 2

flash_point_f

122.0 °F

flash_point_c

50 °C

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ8560
MKCZ1357
MKCX9554
SDBB3734
MKCX6745

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. At what temperature does Product 441090, 2,2´-Azobis(2-methylpropionitrile)98% AIBN, give off free radicals?

    Free radicals will given off at temperatures above 40oC.  Thermal decomposition of the product gives off free radicals which makes this an efficient polymerization initiator.

  4. What is Product 441090, 2,2´-Azobis(2-methylpropionitrile) 98% AIBN soluble in?

    Per the the chemicals encyclopedia published by the Royal Society of Chemistry, 13th Edition, it is soluble in methanol 1.8g / 100ml at 0oC, 4.96g / 100ml at 20oC, and 16.06g / 100ml at 40oC.  It is also soluble in ethanol 0.5g / 100ml at 0oC, 2.04g / 100ml at 20oC, and 7.15g / 100ml at 40oC. Please Note:  Dissolving this product in acetone results in a violent reaction and may cause an explosion.

  5. Does Product 441090, 2,2´-Azobis(2-methylpropionitrile) 98% AIBN, contain an inhibitor?

    No, there is no inhibitor added to this product.

  6. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  8. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Miguel Luna Quinto et al.
Journal of hazardous materials, 384, 121374-121374 (2019-11-02)
A molecularly imprinted polymer (MIP) was developed for the determination of acid violet 19 (AV19) dye. The MIP was synthesized by polymerization using 1-vinyl imidazole (functional monomer) and 2,2'-azobis(2-methylpropionitrile) as the radical initiator. The functional monomer was previously selected by
Tetrahedron Letters, 48, 5585-5585 (2007)
Influence of the size of polystyrene synthesized through soap-free emulsion polymerization on antimicrobial activity
Tetsuya Yamamoto, et al.
Materials Today Communications, 20, 100572-100572 (2019)
Idil Ipek Yilmaz et al.
Macromolecular rapid communications, 33(9), 856-862 (2012-04-21)
Polymers containing maleimide groups on their side chains have been synthesized by utilization of a novel styrenic monomer containing a masked-maleimide unit. AIBN initiated free radical polymerization and reverse addition-fragmentation chain transfer (RAFT) polymerization was utilized for synthesis of copolymers
Mathieu Le Noir et al.
Journal of separation science, 32(9), 1471-1479 (2009-04-29)
Highly efficient removal of endocrine-disrupting compounds (EDCs) such as 17beta-estradiol (E2), 4-nonylphenol (NP) and atrazine from water was achieved using a novel macroporous adsorption medium. The medium consisted of a macroporous poly(vinyl alcohol) (PVA) cryogel with molecularly imprinted polymer (MIP)
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