Name | 3,4-Diethoxy-3-cyclobutene-1,2-dione |
Synonyms | Diethyl squarate Diethyl quadratate DIETHOXYCYCLOBUTENEDIONE Squaric acid diethyl ester 3,4-DIETHOXYCYCLOBUTANE-1,2-DIONE 3,4-Diethoxy-3-cyclobuten-1,2-dion 3,4-diethoxycyclobut-3-ene-1,2-dione 3,4-Diethoxy-3-cyclobutene-1,2-dione Diethyl squarate, Squaric acid diethyl ester SQUARIC ACID DIETHYL ESTER,(DIETHYL SQUARATE, 3,4-DIETHOXY-3-CYCLOBUTENE-1,2-DIONE) |
CAS | 5231-87-8 |
InChI | InChI=1/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3 |
InChIKey | DFSFLZCLKYZYRD-UHFFFAOYSA-N |
Molecular Formula | C8H10O4 |
Molar Mass | 170.16 |
Density | 1.15g/mLat 25°C(lit.) |
Melting Point | 13-18 °C |
Boling Point | 95°C0.1mm Hg(lit.) |
Flash Point | >230°F |
Water Solubility | insoluble |
Vapor Presure | 0.000226mmHg at 25°C |
Appearance | Liquid |
Color | Clear yellow to light brownish |
BRN | 640626 |
Storage Condition | 2-8°C |
Refractive Index | n20/D 1.509(lit.) |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R42/43 - May cause sensitization by inhalation and skin contact. |
Safety Description | 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 vapour. |
WGK Germany | 3 |
RTECS | GU1772466 |
FLUKA BRAND F CODES | 10 |
HS Code | 29145090 |
Hazard Note | Irritant |
NIST chemical information | Information provided by: webbook.nist.gov (external link) |
use | effective raw materials for synthesizing furanones and quinones. It can also participate in the ethoxy substitution reaction of amines and unsaturated organosilanes. |