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

4,4'-Azobis(4-cyanovaleric acid) Structure
4,4'-Azobis(4-cyanovaleric acid) structure
CAS No.
2638-94-0
Chemical Name:
4,4'-Azobis(4-cyanovaleric acid)
Synonyms
ACVA;ABCPA;ABCVA;NC 25;Azocarboxy;NSC 114466;"4,4-Azobis";4,4'-Azobis(4-cyanov;LABOTEST-BB LT00645560;4,4'-Azobis(4-cyanovaL
CBNumber:
CB9344530
Molecular Formula:
C12H16N4O4
Molecular Weight:
280.28
MDL Number:
MFCD00002799
MOL File:
2638-94-0.mol
MSDS File:
SDS
Last updated:2025-09-25 17:15:13
Product description Number Pack Size Price
4,4′-Azobis(4-cyanovaleric acid) ≥98.0% (T) 11590 25g $77.6
4,4′-Azobis(4-cyanovaleric acid) ≥98.0% (T) 11590 100g $189
4,4′-Azobis(4-cyanovaleric acid) A932500 1g $55
4,4′-Azobis(4-cyanovaleric acid) 98% JK418099 25g $56
4,4'-(Diazene-1,2-diyl)bis(4-cyanopentanoic acid) (contains up to 18% water) 212738 100g $72
More product size
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4,4'-Azobis(4-cyanovaleric acid) 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)
EWG's Food Scores 1
FDA UNII H96WE5R147
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)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS02
Signal word  Danger
Hazard statements  H242
Precautionary statements  P210-P234-P235-P240-P370+P378-P403
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
Limited Quantities 1.0 Kg (2.2 lbs)
Excepted Quantities Not Permitted as Excepted Quantity
NFPA 704
1
1 1

4,4'-Azobis(4-cyanovaleric acid) price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 11590 4,4′-Azobis(4-cyanovaleric acid) ≥98.0% (T) 2638-94-0 25g $77.6 2025-07-31 Buy
Sigma-Aldrich 11590 4,4′-Azobis(4-cyanovaleric acid) ≥98.0% (T) 2638-94-0 100g $189 2025-07-31 Buy
TRC A932500 4,4′-Azobis(4-cyanovaleric acid) 2638-94-0 1g $55 2021-12-16 Buy
Frontier Specialty Chemicals JK418099 4,4′-Azobis(4-cyanovaleric acid) 98% 2638-94-0 25g $56 2021-12-16 Buy
Oakwood 212738 4,4'-(Diazene-1,2-diyl)bis(4-cyanopentanoic acid) (contains up to 18% water) 2638-94-0 100g $72 2021-12-16 Buy
Product number Packaging Price Buy
11590 25g $77.6 Buy
11590 100g $189 Buy
A932500 1g $55 Buy
JK418099 25g $56 Buy
212738 100g $72 Buy

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

Chemical Properties

white crystalline powder

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 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) 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) synthesis

143-33-9
123-76-2
2638-94-0
Synthesis of 4,4'-Azobis(4-cyanovaleric acid) from Sodium cyanide and Levulinic acid

4,4'-Azobis(4-cyanovaleric acid) Preparation Products And Raw materials

Raw materials

Hydrazinium hydroxide solution Levulinic acid Chlorine Sodium cyanide

Preparation Products

4-Cyano-4-(dodecylsulfanylthiocarbonyl)sulfanylpentanoic acid, min. 97%

4,4'-Azobis(4-cyanovaleric acid) Suppliers

Global( 262)Suppliers
Supplier Tel Email Country ProdList Advantage
Langfang Hawk Techology & Development Co, Ltd.
+8618631652130 info@hawk-chinachem.com China 23 58
Hebei Chuanghai Biotechnology Co., Ltd 		+8615350571055 Sibel@chuanghaibio.com China 8770 58
Sichuan Zhuoyu Yantang Technology Co., Ltd. 		+8613288715578 sales@sichuanzyyt.com China 12217 58
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20171 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21615 55
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29850 58
NINGBO INNO PHARMCHEM CO., LTD. 		13867897135 sales@nbinno.com CHINA 923 58
Hubei Jusheng Technology Co.,Ltd. 		18871490254 linda@hubeijusheng.com CHINA 28172 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49975 58
Richest Group Ltd 		18017061086 oled@richest-group.com CHINA 5600 58
Supplier Advantage
Langfang Hawk Techology & Development Co, Ltd.
58
Hebei Chuanghai Biotechnology Co., Ltd 		58
Sichuan Zhuoyu Yantang Technology Co., Ltd. 		58
Henan Fengda Chemical Co., Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55
career henan chemical co 		58
NINGBO INNO PHARMCHEM CO., LTD. 		58
Hubei Jusheng Technology Co.,Ltd. 		58
CONIER CHEM AND PHARMA LIMITED 		58
Richest Group Ltd 		58

Related articles

View Lastest Price from 4,4'-Azobis(4-cyanovaleric acid) manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4,4'-Azobis(4-cyanovaleric acid) pictures 2025-11-14 4,4'-Azobis(4-cyanovaleric acid)
2638-94-0
 US $10.00 / KG 100KG 99% 100 mt Hebei Chuanghai Biotechnology Co., Ltd
4,4'-Azobis(4-cyano valeric acid) pictures 2025-10-14 4,4'-Azobis(4-cyano valeric acid)
2638-94-0
 US $120.00 / KG/CTN 1KG 99%min 200tons Langfang Hawk Techology & Development Co, Ltd.
4,4''-Azobis(4-cyano valeric acid) pictures 2025-09-25 4,4''-Azobis(4-cyano valeric acid)
2638-94-0
 US $6.00-0.60 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd

4,4'-Azobis(4-cyanovaleric acid) Spectrum

4,4'-Azobis(4-cyanovaleric acid)(2638-94-0)MS4,4'-Azobis(4-cyanovaleric acid)(2638-94-0)1HNMR4,4'-Azobis(4-cyanovaleric acid)(2638-94-0)IR1

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

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 AMINOACETONITRILE Valeronitrile
4-AMINOBUTYRIC ACID BUTYRONITRILE 2-METHYLBUTYRONITRILE 2-AMINO-2-METHYL-PROPIONITRILE 2,2'-Azodi(2-methylbutyronitrile)
4-Amino-1-butanol tert-Butylamine 4-Methylvaleric acid

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4'-Azobis(4-cyanovaleric acid) (E)-4,4'-(diazene-1,2-diyl)bis(4-cyanopentanoic acid) 4,4'-Azobis(4-cyanovaleric acid) >=98.0% (T) 4,4'-Azobis(4-cyanovaleric acid) >=75% 4,4’-Azobis-(4-cyanopentanoic 4,4’-azobis(4-cyano-pentanoicaci 4,4’-azobis(4-cyano-valericaci 4,4’-azobis[4-cyano-pentanoicaci Azobis(cyanovaleric acid) azobis(cyanovalericacid) cis-4,4'-Azobis(4-cyanovaleric acid) Kyselina 4,4'-azo-bis-(4-kyanvalerova) kyselina4,4’-azo-bis-(4-kyanvalerova) Pentanoic acid, 4,4'-azobis[4-cyano- Valeric acid, 4,4'-azobis(4-cyano- 4,4'-AZOBIS(4-CYANOPENTANOIC ACID) ACVA LABOTEST-BB LT00645560 Azocarboxy 4,4'-AZOBIS(4-CYANOPENTANOIC AC.), MOI-S TENED W. WATER ~15% 4,4'-AZOBIS(4-CYANOVALERIC ACID), 75+%, REMAINDER WATER 4,4'-AZOBIS(4-CYANO VALERIC ACID(ACVA) 4,4-dicyano-4,4-azodivaleric acid 4,4'-Azobis(4-cyanovaleric acid), moistened with ca. 30% water, 97% 4,4′-Azobis[4-cyanvalerian]sure 4,4'-Azobis(4-cyanovaleric acid):V-501 4,4'-Azobis(4-cyanopentanecarboxylic acid) 4,4'-Azobis(cyanovaleric acid) 4,4'-Azibis(4-cyanopentanoic acid) 4,4'-Azobis(4-cyanovaleric acid),97% 4,4'-Azobis(4-cyanovaleric acid),97%,moistened with ca. 30% water ABCPA ABCVA NC 25 NSC 114466 4,4'-(Diazene-1,2-diyl)bis(4-cyanopentanoic acid) 4,4'-Azobis(4-cyanovaleric Acid) (contains ca. 20% Water) 4,4′-Azobis(4-cyanovaleric acid),4,4′-Azobis(4-cyanopentanoic acid), ACVA 4,4'-Azobis(4-cyanov 4,4'-Azobis(4-cyanovaL 2,4,4 '- azobis (4-cyano valeric acid) 4,4'-(Diazene-1,2-diyl)bis(4-cyanopentanoic acid) (contains ca. 20% Water) 4,4'-Azobis(4-cyanovaleric acid), 98%, for synthesis Azo Bis Cyno valeric acid" (ACVA) Pentanoic acid, 4,4'-(1,2-diazenediyl)bis[4-cyano- 4,4-Azobis(4-Cyanovaleric Acid),>98% "4,4-Azobis" 4,4'-Azobis(4-cyanovaleric acid)(2638-94-0) 4,4'-Azobis(4-cyanovaleric acid) 4,4''-Azobis(4-cyano valeric acid) 4,4'-(Diazene-1,2-diyl)bis(4-cyanopentanoic acid),98% contains ca. 15-18% Water 4,4'-Azobis(4-cyanovaleric acid) 2638-94-0 HOCOCH2CH2CCH3CNNNCCH3CNCH2CH2COOH C12H16N4O4 Azo/Diazo Compounds Building Blocks Nitrogen Compounds