2,2'-Azobis(2-methylpropionitrile) (CAS 78-67-1)
2,2'-Azobis(2-methylpropionitrile) (CAS 78-67-1) is an organic peroxide compound with molecular formula C8H12N4 and molecular weight 164.21. Also known as 2,2'-AZOBIS(2-METHYLPROPIONITRILE), 2,2-AZOBIS(2-METHYLPROPIONITRILE), 2,2'-AZOBISISOBUTYRONITRILE. It typically appears in crystalline solid/powder form.
2,2'-Azobis(2-methylpropionitrile) (CAS number: 78-67-1) is an advanced chemical raw material that is designed specifically for the demanding coatings, adhesives, and composites industries, offering stable and long-lasting curing effects. It is particularly suitable for manufacturing wire and cable insulation and vulcanizing rubber products. Its exceptional chemical characteristics give it an important position in modern industrial formulations, providing enterprises with highly efficient product solutions.
Below you can find its complete physical and chemical properties, safety data, GHS hazard classifications, and a catalog of 3 products from 2 verified manufacturers.
CAS 78-67-1 is also known as:
- 2,2'-AZOBIS(2-METHYLPROPIONITRILE)
- 2,2-AZOBIS(2-METHYLPROPIONITRILE)
- 2,2'-AZOBISISOBUTYRONITRILE
- 2,2'-AZODIISOBUTYRONITRILE
- 2,2'-dicyano-2,2'-azopropane
- 2,2'-Dimethyl-2,2'-azodipropionitrile
- A,A'-AZOISOBUTYRONITRILE
- AIBN
- ALPHA,ALPHA'-AZOBISISOBUTYRONITRILE
- ALPHA,ALPHA-AZOBISISOBUTYRONITRILE
- ALPHA,ALPHA'-AZO-DI-ISO-BUTYRONITRILE
- ALPHA,ALPHA'-AZOISOBUTYRONITRILE
- AZOBISISOBUTYRONITRILE
- azodiisobutyrodinitrile
- AZODI-ISO-BUTYRONITRILE
- ADIN
CAS Number
78-67-1
Molecular Formula
C8H12N4
Molecular Weight
164.21
EINECS Number
201-132-3
MDL Number
MFCD00013808
BRN Number
1760072
Chemical Name
2,2'-Azobis(2-methylpropionitrile)
Last Updated
7/29/2025
Aliases
Appearance
White solid with a faint characteristic odor
Appearance State
Crystalline solid. Slightly soluble in water, soluble in methanol, acetone.
Color
White
Odor
Odorless
Form
Crystalline Solid/Powder
Melting Point
102-104 (dec. lit.)
Boiling Point
103 (dec.)
Flash Point
46 (c.c.)
Density
1.11
Vapor Density
>1 (air=1)
Vapor Pressure
0.81 Pa @ 24.85°C
Refractive Index
1.495 (20°C D)
LogP Value
1.1 @ 25 °C
Merck Index
973
Solubility
Insoluble in water, soluble in ethanol, ether, toluene, etc.
Water Solubility
insoluble in water
Solubility Detail
Soluble in chloroform (sparingly), methanol (sparingly).
Storage Conditions
Store at 2-8°C.
InChI Key
OZAIFHULBGXAKX-VAWYXSNFSA-N
GHS Hazard Symbols
Hazard Class
Signal Word
Danger
Hazard Symbols
F
Risk Codes
R2, R11, R20/22, R52/53
UN Number
UN 3234
IARC Classification
Not Classified
WGK Germany
2
RTECS Number
UG0800000
Auto-ignition Temperature
371
TSCA Listed
Listed (Active)
Packing Group
II
Customs Code
29269090
Occupational Exposure Band (OEB)
Not Specified
Occupational Exposure Limit (OEL)
NIOSH REL C: 1 mg/m³ (Skin)
Immediately Dangerous to Life or Health (IDLH)
100 mg/m³
Hazard Statements
H242,H302+H332,H412Precautionary Statements
P210,P235,P273,P304+P340+P312,P370+P378,P403Safety Statements
S39, S41, S47, S61
2 verified suppliers offering 3 products for 2,2'-Azobis(2-methylpropionitrile) (CAS 78-67-1). Compare equivalent grades across brands (e.g., Trigonox vs Luperox) by assay, physical form, and availability from trusted manufacturers and distributors worldwide.
| Company Name | Product Model | Assay | Physical Form | Status |
|---|---|---|---|---|
| Nouryon Chemicals International B.V. | Perkadox AIBN-PD | Solid | Imported | |
| Liaoning Shuangqi Fine Chemical Co., Ltd. | AIBN | 99% | - | In Production |
| Nouryon Chemicals International B.V. | Perkadox AIBN | Solid | Imported |
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