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

• Catalog No.: 31630
• CAS Number: 5231-87-8
• M. F.: C8H12O4
• M. W.: 172.17848
• Purity: ≥97.0% (GC)

SYNONYMS

• Title: 3,4-二乙氧基-3-环丁烯-1,2-二酮
• IUPAC name: 3,4-diethoxycyclobutane-1,2-dione
• IUPAC Traditional name: 3,4-diethoxycyclobutane-1,2-dione
• Synonyms: 四方酸二乙酯; Diethyl squarate; Squaric acid diethyl ester; 方酸二乙酯

DATABASE IDS

• PubChem SID: 24859005
• MDL Number: MFCD00001333
• CAS Number: 5231-87-8
• Beilstein Number: 640626

PROPERTIES

• Grade: purum
• Linear Formula: (C2H5O)2C4(=O)2
• Purity: ≥97.0% (GC)
• Boiling Point: 95 °C/0.1 mmHg(lit.)
• Density: 1.15 g/mL at 25 °C(lit.)
• Flash Point: 110 °C
• Flash Point: 230 °F
• Refractive Index: n20/D 1.509(lit.)
• Refractive Index: n20/D 1.509
• GHS Signal Word: Warning
• GHS Hazard statements: H315-H317-H319-H335
• European Hazard Symbols: Harmful (Xn)
• Personal Protective Equipment: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• GHS Precautionary statements: P261-P280-P305 + P351 + P338
• Risk Statements: 36/37/38-42/43
• Safety Statements: 7-26-37/39
• Storage Temperature: 2-8°C
• German water hazard class: 3

DETAILS

Description (English)

Other Notes
Building block for the synthesis of substituted and fused p-benzoquinones and of cyclopentenediones1,2,3,4

Description (简体中文)

Other Notes
合成取代和稠合对苯醌和环戊烯二酮的结构单元1,2,3,4