CIS-CYCLOBUTANE-1,2-DICARBOXYLIC ACID Chemical Properties

Melting point:

133-139 °C

Boiling point:

377.7±35.0 °C(Predicted)

Density 

1.509±0.06 g/cm3(Predicted)

storage temp. 

2-8°C

pka

pK1:3.90 ;pK2:5.89 (25°C)

BRN 

2047669

InChIKey

SUSAGCZZQKACKE-ZXZARUISSA-N

Safety Information

Hazard Codes 

C,Xi

Risk Statements 

34-36/37/38

Safety Statements 

26-36/37/39-45-36

RIDADR 

UN 3261 8/PG 3

WGK Germany 

3

HS Code 

2917200090

MSDS

• Language:English Provider:SigmaAldrich

CIS-CYCLOBUTANE-1,2-DICARBOXYLIC ACID Usage And Synthesis

Chemical Properties

White powder

General Description

The interaction of the carboxyl groups in the fragmentation of the molecular ions of cis-cyclobutane-1,2-dicarboxylic acid helps to distinguish it from trans-cyclobutane-1,2-dicarboxylic acid.

Purification Methods

Purify the acid by crystallisation from H2O or ligroin, or by hydrolysis of the anhydride [b 120-150o/40mm, m 77-77.5o (from *C6H6, 74-75o from H2O or ligroin)] with H2O. The diphenacyl ester has m 113o (from EtOH) and the p-bromodiphenacyl ester has m 153o (from EtOH/Me2CO). [Vogel Justus Liebigs Ann Chem 615 13 1958, Reed J Chem Soc 685 1951, Fison et al. J Am Chem Soc 56 1774 1934, pK: Bode Chem Ber 67 332 1934, Beilstein 9 IV 2788.]

CIS-CYCLOBUTANE-1,2-DICARBOXYLIC ACID(1461-94-5)Related Product Information

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