| Identification | More | [Name]
Diethyl squarate | [CAS]
5231-87-8 | [Synonyms]
1,2-DIETHOXYCYCLOBUTENEDIONE
3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE
3,4-DIETHOXYCYCLOBUT-3-ENE-1,2-DIONE
DIETHYL SQUARATE
DIETHYL SUQUARATE
SQUARIC ACID DIETHYL ESTER
SUQUARIC ACID DIETHYL ESTER
TIMTEC-BB SBB008498
3-Cyclobutene-1,2-dione, 3,4-diethoxy-
3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE, 98 %
DiethylSquarate98%
3,4-DIETHOXYCYCLOBUTANE-1,2-DIONE
Diethyl squarate, Squaric acid diethyl ester
SQUARIC ACID DIETHYL ESTER,(DIETHYL SQUARATE, 3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE)
DIETHOXYCYCLOBUTENEDIONE
3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE 98%
SQUARICACIDDIETHYLESTER/3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE
3,4-Diethoxy-3-cyclobuten-1,2-dion
Diethyl quadratate | [Molecular Formula]
C8H10O4 | [MDL Number]
MFCD00001333 | [Molecular Weight]
170.16 | [MOL File]
5231-87-8.mol |
| Chemical Properties | Back Directory | [Appearance]
clear yellow to light brownish liquid | [Melting point ]
13-18 °C | [Boiling point ]
95 °C0.1 mm Hg(lit.) | [density ]
1.15 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.509(lit.)
| [Fp ]
>230 °F
| [storage temp. ]
2-8°C
| [form ]
Liquid | [color ]
Clear yellow to light brownish | [Water Solubility ]
insoluble | [Usage]
Intermediate for pharma products, for photochemicals used in the dry-view process, in synthesis of photosensitive squaraine dyes (eg. laser dyes used in CD-Rom) and as intermediate for functional polymers. | [BRN ]
640626 | [InChIKey]
DFSFLZCLKYZYRD-UHFFFAOYSA-N | [CAS DataBase Reference]
5231-87-8(CAS DataBase Reference) | [NIST Chemistry Reference]
3,4-Diethoxy-3-cyclobutene-1,2-dione(5231-87-8) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R42/43:May cause sensitization by inhalation and skin contact . | [Safety Statements ]
S7:Keep container tightly closed .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
S24:Avoid contact with skin .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) . | [WGK Germany ]
3
| [RTECS ]
GU1772466 | [F ]
10 | [Hazard Note ]
Irritant | [HS Code ]
29145090 |
| Hazard Information | Back Directory | [Chemical Properties]
clear yellow to light brownish liquid | [Uses]
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. | [Uses]
Diethyl squarate is an intermediate for pharma products, for photochemicals used in the dry-view process, in synthesis of photosensitive squaraine dyes (eg. laser dyes used in CD-Rom) and as intermediate for functional polymers.
| [General Description]
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. |
|
|