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

• Catalog No.: A19248
• CAS Number: 5231-87-8
• M. F.: C8H10O4
• M. W.: 170.1626
• Purity: 98%

SYNONYMS

• Title: 3,4-二乙氧基-3-环丁烯-1,2-二酮
• IUPAC name: diethoxycyclobut-3-ene-1,2-dione
• IUPAC Traditional name: diethoxycyclobut-3-ene-1,2-dione
• Synonyms: Diethyl squarate; Squaric acid diethyl ester

DATABASE IDS

• CAS Number: 5231-87-8
• MDL Number: MFCD00001333
• Beilstein Number: 640626

PROPERTIES

• Purity: 98%
• Boiling Point: 95°C/0.1mm
• Density: 1.162
• Flash Point: >110°C(230°F)
• Refractive Index: 1.5090
• GHS Hazard statements: H334-H315-H319-H317-H335
• European Hazard Symbols: X
• GHS Precautionary statements: P285-P305+P351+P338-P302+P352-P321-P405-P501A
• Risk Statements: 36/37/38-42/43
• RTECS: GU1772466
• Safety Statements: 23-24-26-37-45
• TSCA Listed: 否

REFERENCES

• For reaction with 1-lithiofuran and thermal rearrangement of the resulting 1-hydroxy-1-furanyl derivative to give, after oxidation, a furanoquinone, see: Org. Synth. Coll., 8, 179 (1993); other examples of annulated quinones are also listed.