FRINTON LABORATORIES, INC.

Organic Compounds for Research

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SPECIFICATION

Cat. No:

FR-0553

Name:

3,4-Dibutoxy-3-cyclobutene-1,2-dione

Dibutyl squarate

Formula:

C12H18O4

CAS Registry:

2892-62-8

Mol. Wt.:

226.27

B.P./B.P.:

B.P. 134-136°C at 0.25 mm.

F.P.:

>110°C

Density:

1.047 g/mL at 25°C

Refractive index:

1.494 n20°C /D

Purity/Assay:

98.5-99% by HPLC

Water:

0.2%

Metal:

0.14%

Conforms:

IR, NMR spectra

Appearance:

Clear to slightly yellow liquid

Odor:

Practically odorless.

Caution:

Keep tightly sealed and in cool, dry place.

Hydrolyzed by moisture.

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