4,4'-Azobis(4-cyanovaleric acid) Chemical Properties

Melting point:

118-125 °C (dec.) (lit.)

Boiling point:

423°C (rough estimate)

Density 

1.2464 (rough estimate)

refractive index 

1.6081 (estimate)

storage temp. 

2-8°C

solubility 

DMSO (Slightly), Methanol (Slightly)

form 

Solid

pka

3.98±0.10(Predicted)

color 

White

Water Solubility 

Soluble in water.

Sensitive 

Light Sensitive

BRN 

1729856

InChIKey

VFXXTYGQYWRHJP-FOCLMDBBSA-N

LogP

0.8 at 23℃

CAS DataBase Reference

2638-94-0(CAS DataBase Reference)

NIST Chemistry Reference

4,4'-Azo-bis(4-cyanopentanoic acid)(2638-94-0)

EPA Substance Registry System

4,4'-Azobis(4-cyanovaleric acid) (2638-94-0)

Safety Information

Hazard Codes 

F

Risk Statements 

11

Safety Statements 

15-16-22-24/25-36

RIDADR 

UN 1325 4.1/PG 2

WGK Germany 

2

RTECS 

YV6190500

F 

4.4-8

TSCA 

Yes

HazardClass 

4.1

HS Code 

29270000

Toxicity

LD50 ipr-mus: 666 mg/kg 85JCAE -,922,86

MSDS

• Language:English Provider:ACVA
• Language:English Provider:SigmaAldrich

4,4'-Azobis(4-cyanovaleric acid) Usage And Synthesis

Chemical Properties

white crystalline powder

Uses

4,4'-Azobis(4-cyanovaleric acid) is used as a free radical imitator in polymer synthesis such as polyvinyl chloride, polyacrylonitrile, polyvinyl alcohol and synthetic fibers. It is utilized for both heterogeneous and homogenous free-radical polymerizations, and as an initiator in reversible addition-fragmentation chain transfer polymerization (RAFT). It is also used as a blowing agent for plastics and elastomers.

Uses

4,4′-Azobis(4-cyanovaleric acid) has been used in the preparation of polystyrene particles by polymerizing styrene in ethyl alcohol.

Uses

4,4’Azobis(4-cyanovaleric Acid) is a water soluble azo initiator usded in radical polymerization process of vinyls, acylamides, styrenes as well as other polymers.

Hazard

Toxic.

Flammability and Explosibility

Not classified

Biochem/physiol Actions

4,4′-azobis(4-cyanovaleric acid) is an azo-initiator that induces lipid peroxidation of sunflower oil.

Safety Profile

Moderately toxic byintraperitoneal route. When heated to decomposition itemits toxic vapors of NOx.

4,4'-Azobis(4-cyanovaleric acid)(2638-94-0)Related Product Information

• MAGNESIUM DIPROPYLACETATE HYDRATE
• 2-Propylpentanoic acid
• Estradiol valerate
• ETHYL 2-CYANOACRYLATE
• Pivalic acid
• Methylene dithiocyanate
• 2,2'-Azobis(2,4-dimethyl)valeronitrile
• 2,2'-AZOBIS[2-(2-IMIDAZOLIN-2-YL)PROPANE] DIHYDROCHLORIDE
• Valeronitrile
• 4-AMINOBUTYRIC ACID
• BUTYRONITRILE
• 2-METHYLBUTYRONITRILE
• 2-AMINO-2-METHYL-PROPIONITRILE
• 2,2'-Azodi(2-methylbutyronitrile)
• 4-Amino-1-butanol
• tert-Butylamine
• AMINOACETONITRILE
• 4-Methylvaleric acid