Citraconic acid Chemical Properties

Melting point:

88-94 °C (lit.)

Boiling point:

160.75°C (rough estimate)

Density 

1,62 g/cm³

refractive index 

1.4502 (estimate)

storage temp. 

Hygroscopic, -20°C Freezer, Under inert atmosphere

solubility 

DMSO (Sparingly, Sonicated), Water (Slightly)

pka

pK1:2.29(0);pK2:6.15(+1) (25°C)

form 

Crystalline Powder

color 

White to light beige

Water Solubility 

FREELY SOLUBLE

Sensitive 

Hygroscopic

Merck 

14,2321

BRN 

1722679

Stability:

Hygroscopic

CAS DataBase Reference

498-23-7(CAS DataBase Reference)

NIST Chemistry Reference

2-Butenedioic acid, 2-methyl-, (Z)-(498-23-7)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-36/37/38

Safety Statements 

36-37/39-26

RIDADR 

2811

WGK Germany 

3

RTECS 

GE6650000

HazardClass 

6.1(b)

PackingGroup 

III

HS Code 

29171900

Toxicity

LD50 in rats, mice (mg/kg): 1320, 2260 orally (Jenner)

MSDS

• Language:English Provider:Citraconic acid
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Citraconic acid Usage And Synthesis

Chemical Properties

white to light beige crystalline powder

Uses

Citraconic acid is used in synthetic or copolymer oils, in treating metals for adhesion of polyolefins, and in thermoplastics.

Uses

Citraconic acid is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff fields.

Definition

ChEBI: Citraconic acid is a dicarboxylic acid consisting of maleic acid having a methyl substituent at the 2-position. It has a role as a human metabolite. It is a dicarboxylic acid and a dicarboxylic fatty acid. It is functionally related to a maleic acid. It is a conjugate acid of a citraconate(2-).

Purification Methods

Steam distil and crystallise it from EtOH/ligroin. [Beilstein 2 H 768, 2 I 309, 2 II 652, 2 III 1938, 2 IV 2230.]

Citraconic acid(498-23-7)Related Product Information

• Ethyl 2-(Chlorosulfonyl)acetate
• Tiglic aldehyde
• Methylparaben
• METHYL THIOPHENE-2-CARBOXYLATE
• Monobutyl maleate
• CIS-BUTENEDIOIC ANHYDRIDE
• Bensulfuron methyl
• Folic acid
• Fumaric acid
• Maleic acid
• 2-Methyl-2-butene
• Hyaluronic acid
• Kresoxim-methyl
• Diethyl methylmalonate
• Methyl acrylate
• Thiophanate-methyl
• Citric acid
• Ascoric Acid