CAS No.2638-94-0,4,4'-Azobis(4-cyanovaleric acid) Suppliers

Products Categories

Pharmaceutical (61)
Organic Chemicals (28)
Others (14)
Reagent (7)
Materials (3)
Catalyst and Auxiliary (3)

Basic Information

Molecular Structure:
CAS No.:	2638-94-0
Name:	4,4'-Azobis(4-cyanovaleric acid)
Article Data:	3

Formula:	C₁₂H₁₆N₄O₄
Molecular Weight:	280.283
Synonyms:	Pentanoicacid, 4,4'-azobis[4-cyano- (9CI);Valeric acid, 4,4'-azobis[4-cyano- (6CI,8CI);4,4'-Azobis(4-cyanopentanecarboxylic acid);4,4'-Azobis(cyanovaleric acid);4,4'-Azobis[4-cyanopentanoic acid];4,4'-Azobis[4-cyanovaleric acid];ABCVA;ACV-A;Azobis(cyanovaleric acid);NSC 114466;V 501;VA 501;Vazo 68;Vazo68WSP;
EINECS:	220-135-0
Density:	1.23 g/cm³
Melting Point:	118-125 °C (dec.)(lit.)
Boiling Point:	503.6 °C at 760 mmHg
Flash Point:	258.3 °C
Solubility:	Soluble in water.
Appearance:	white crystalline powder
Hazard Symbols:	F
Risk Codes:	11
Safety:	15-16-22-24/25-36
Transport Information:	UN 1325 4.1/PG 2
PSA:	146.90000
LogP:	1.73276

Synthetic route

: 4,4'-hydrazo-bis-4-cyano-pentanoic acid

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

Conditions

Conditions	Yield
With oxone; potassium bromide In water at 20℃;	26%

: 143-33-9
sodium cyanide

: 123-76-2
levulinic acid

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

Conditions

Conditions	Yield
With sulfuric acid; water; hydrazine Behandeln des Reaktionsgemisches mit Brom; optically inactive stereoisomer(ic) of mp: 111 degree;
With sulfuric acid; water; hydrazine Behandeln des Reaktionsgemisches mit Brom; optically inactive stereoisomer(ic) of mp: 128 degree;

: 6066-82-6
1-hydroxy-pyrrolidine-2,5-dione

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

: 130468-55-2
4-Cyano-4-[1-cyano-3-(2,5-dioxo-pyrrolidin-1-yloxycarbonyl)-1-methyl-propylazo]-4-methyl-butyric acid 2,5-dioxo-pyrrolidin-1-yl ester

Conditions

Conditions	Yield
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 0 - 20℃; for 37h;	98%
With dicyclohexyl-carbodiimide In 1,4-dioxane at 15 - 20℃; for 16h;

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

: 17170-81-9
chloride of 4,4'-azo-bis(4-cyanopentanoic) acid chloride

Conditions

Conditions	Yield
With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 20℃; for 3h;	95.6%
With thionyl chloride at 80℃; for 0.666667h;	93%
With phosphorus pentachloride In chloroform at 0 - 20℃;	84%

: bis(9H-carbazole-9-yl-thiocarbonyl)disulfide

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

: C19H16N2O2S2

Conditions

Conditions	Yield
In ethyl acetate for 18h; Inert atmosphere; Reflux;	95.4%

: 26690-80-2
2-(N-tert-butoxycarbonylamino)ethanol

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

: bis(2-((tert-butoxycarbonyl)amino)ethyl)(4,4-azobis(4-cyanovalerate))

Conditions

Conditions	Yield
With dmap In acetonitrile at 0 - 20℃; for 24h;	95%

: 821-09-0
n-Pent-4-enyl alcohol

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

: C22H32N4O4

Conditions

Conditions	Yield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 24h; Inert atmosphere; Darkness;	92%

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

: 870532-86-8
bis(dodecylsulfanyl thiocarbonyl)disulfide

: 870196-80-8
4-cyano-4-[(dodecylsulfanylthiocarbonyl)-sulfanyl]pentanoic acid

Conditions

Conditions	Yield
In ethyl acetate for 16h; Heating / reflux;	91%
In ethyl acetate for 22h; Reflux;	91%
In ethyl acetate for 18h; Reflux;	76%
In ethyl acetate for 22h; Reflux;	4.162 g
With ethyl acetate for 20h; Reflux;

: 75-15-0
carbon disulfide

: 107-03-9
1-thiopropane

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

: 4-cyano-4-[(propylsulfanylthiocarbonyl)sulfanyl]pentanoic acid

Conditions

Conditions	Yield
Stage #1: carbon disulfide; 1-thiopropane With potassium hydroxide In water; acetone at 20℃; for 2h; Stage #2: With p-toluenesulfonyl chloride In acetone for 1h; Stage #3: 4,4'-dicyano-4,4'-azo-di-valeric acid at 80℃;	90%

...Expand

: 10219-97-3
bis(ethylsulfanyl thiocarbonyl)disulfide

: 2638-94-0
4,4'-dicyano-4,4'-azo-di-valeric acid

: 1137725-46-2
cyano-4-[(ethylsulfanylthiocarbonyl)sulfanyl]-4-methylbutanoic acid

Conditions

Conditions	Yield
In ethyl acetate Reflux; Inert atmosphere;	88%
In ethyl acetate for 12h; Reflux;	87%
In ethyl acetate at 80℃; for 13h; Cooling with ice; Sealed tube; Inert atmosphere;	82%

Raw Materials

143-33-9

123-76-2

Downstream Products

5873-93-8

201611-92-9

Total:87 Page 1 of 3 1 2 3 Next>>

Post a RFQ

Cas No.:

Product Name:

Quantity:

Email:

Company name:

Valid Period:

Detailed Requirements:

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

What can I do for you?
Get Best Price

Get Best Price for 2638-94-0

Chemistry

IUPAC Name: 4-cyano-4-(2-cyano-5-hydroxy-5-oxopentan-2-yl)diazenylpentanoic acid
Synonyms of 4,4'-Azobis(4-cyanopentanoic acid) (CAS NO.2638-94-0): 4,4'-Azobis(4-cyanovaleric acid) ; Azobis(cyanovaleric acid) ; Kyselina 4,4'-azo-bis-(4-kyanvalerova)
CAS NO: 2638-94-0
Molecular Formula: C₁₂H₁₆N₄O₄
Molecular Weight: 280.28
Molecular Structure:
EINECS: 220-135-0
H bond acceptors: 8
H bond donors: 2
Freely Rotating Bonds: 8
Polar Surface Area: 124.9 Å²
Index of Refraction: 1.546
Molar Refractivity: 71.88 cm³
Molar Volume: 226.9 cm³
Surface Tension: 51.8 dyne/cm
Density: 1.23 g/cm³
Flash Point: 258.3 °C
Enthalpy of Vaporization: 84.6 kJ/mol
Boiling Point: 503.6 ^oC at 760 mmHg
Vapour Pressure: 1.66E-11 mmHg at 25 °C
Melting point: 118-125 °C (dec.)(lit.)
Storage temp: 2-8°C
Appearance: white crystalline powder
Product Categories of 4,4'-Azobis(4-cyanopentanoic acid) (CAS NO.2638-94-0): Industrial/Fine Chemicals;Organic acids
SMILES: N#CC(/N=N/C(C#N)(CCC(=O)O)C)(C)CCC(=O)O
InChI: InChI=1/C12H16N4O4/c1-11(7-13,5-3-9(17)18)15-16-12(2,8-14)6-4-10(19)20/h3-6H2,1-2H3,(H,17,18)(H,19,20)/b16-15+
InChIKey: VFXXTYGQYWRHJP-FOCLMDBBBS
Std. InChI: InChI=1S/C12H16N4O4/c1-11(7-13,5-3-9(17)18)15-16-12(2,8-14)6-4-10(19)20/h3-6H2,1-2H3,(H,17,18)(H,19,20)/b16-15+
Std. InChIKey: VFXXTYGQYWRHJP-FOCLMDBBSA-N

Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	intraperitoneal	666mg/kg (666mg/kg)		"Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 922, 1986.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Safety Information about 4,4'-Azobis(4-cyanopentanoic acid) (CAS NO.2638-94-0):
Hazard Codes: F
Risk Statements: 11
R11: Highly flammable.
Safety Statements: 15-16-22-24/25-36
S15: Keep away from heat.
S16: Keep away from sources of ignition.
S22: Do not breathe dust.
S24/25: Avoid contact with skin and eyes.
S36: Wear suitable protective clothing.
RIDADR: UN 1325 4.1/PG 2
WGK Germany: 2
RTECS: YV6190500
F: 4.4-8
Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic vapors of NO_x.