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

5231-87-8.png
CAS Number

5231-87-8

Linear Formula

(C2H5O)2C4(=O)2

Molecular Weight

170.16

Specifications

assay 98%
density 1.15 g/mL at 25 °C(lit.)
bp 95 °C/0.1 mmHg(lit.)
refractive index n20/D 1.509(lit.)

Safety Information

Symbol

GHS07

Signal word

Warning
Hazard statements

H315-H317-H319-H335
Risk Statements (Europe)

36/37/38-42/43
Hazard Codes (Europe)

Xn
Safety Statements (Europe)

7-26-37/39
WGK Germany

3
Flash Point(C)

110 °C
Flash Point(F)

230 °F

Application

Useful starting material for synthesis of furanones and quinones. Also undergoes ethoxy substitution with amines and unsaturated organosilanes.

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