Diethyl squarate

Names

[ Name ]:
Diethyl squarate

[Synonym ]:
Diethyl squarate
3,4-diethoxycyclobut-3-ene-1,2-dione
MFCD00001333
3,4-Diethoxy-3-cyclobutene-1,2-dione
Squaric Acid Diethyl Ester
3-Cyclobutene-1,2-dione, 3,4-diethoxy-

Chemical & Physical Properties

[ Density]:
1.2±0.1 g/cm3

[ Boiling Point ]:
325.7±0.0 °C at 760 mmHg

[ Melting Point ]:
19 °C

[ Molecular Formula ]:
C₈H₁₀O₄

[ Molecular Weight ]:
170.163

[ Flash Point ]:
135.4±30.7 °C

[ Exact Mass ]:
170.057907

[ PSA ]:
52.60000

[ LogP ]:
-0.15

[ Vapour Pressure ]:
0.0±0.7 mmHg at 25°C

[ Index of Refraction ]:
1.477

[ Storage condition ]:
2-8°C

[ Water Solubility ]:
insoluble

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS07, GHS08

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H315-H317-H319-H334-H335

[ Precautionary Statements ]:
P261-P280-P284-P304 + P340-P305 + P351 + P338-P342 + P311

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
Xn:Harmful;

[ Risk Phrases ]:
R36/37/38;R42/43

[ Safety Phrases ]:
S7-S26-S37/39-S24-S23

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ RTECS ]:
GU1772466

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Articles

J. Org. Chem. 59 , 4707, (1994)

Organic Synth. 69 , 220, (1990)

J. Chem. Soc. Perkin Trans. I , 263, (1993)