310778

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

98%

• 동의어(들): Diethyl squarate, Squaric acid diethyl ester
• Linear Formula: (C₂H₅O)₂C₄(=O)₂
• CAS Number: 5231-87-8
• Molecular Weight: 170.16
• Beilstein: 640626
• MDL number: MFCD00001333
• UNSPSC 코드: 12352100
• PubChem Substance ID: 24858814
• NACRES: NA.22

속성

• Quality Level: 100
• 분석: 98%
• 양식: liquid
• refractive index: n20/D 1.509 (lit.)
• bp: 95 °C/0.1 mmHg (lit.)
• density: 1.15 g/mL at 25 °C (lit.)
• 작용기: ether; ketone
• SMILES string: CCOC1=C(OCC)C(=O)C1=O
• InChI: 1S/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3
• InChI key: DFSFLZCLKYZYRD-UHFFFAOYSA-N

설명

일반 설명

The reaction of 3,4-diethoxy-3-cyclobutene-1,2-dione (squaric acid diethyl ester) with glycosylamines (formed by reducing oligosaccharides) was studied. The derivatives formed were linked to amino-functionalized lipids, solids or proteins.

애플리케이션

3,4-Dethoxy-3-cyclobutene-1,2-dione is used as a starting material for synthesis of furanones and quinones. It undergoes ethoxy substitution with amines and unsaturated organosilanes.

안전성 정보

• 픽토그램: GHS08,GHS07
• 신호어: Danger
• 유해 및 위험 성명서: H315,H317,H319,H334,H335
• 예방조치 성명서: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• 표적 기관: Respiratory system
• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point (°F): 230.0 °F - closed cup
• Flash Point (°C): 110 °C - closed cup
• 개인 보호 장비: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter