Identification
Name		1,3-Dimethyl-1,2,3,4-cyclobutanetetracarboxylic acid dianhydride
Synonyms		Cyclobuta[1,2-c:3,4-c']difuran-1,3,4,6-tetrone, tetrahydro-3a,6a-dimethyl- Cyclobuta[1,2-c:3,4-c']difurantetrone, tetrahydro-3a,6a-dimethyl- (9CI) Tetrahydro-3a,6a-dimethylcyclobuta[1,2-c:3,4-c']difuran-1,3,4,6-tetrone 1,3-Dimethyl-1,2,3,4-cyclobutanetetracarboxylic acid dianhydride 1,3-Dimethyl-1,2,3,4-cyclobutanetetracarboxylic dianhydride
Molecular Structure
Molecular Formula		C10H8O6
Molecular Weight		224.17
CAS Registry Number		137820-87-2
Nature
Flash Point		210.3±28.8 °C
Boiling point		456.5±45.0 °C
density		1.635±0.06 g/cm3
colour		White to light yellow solid
Safety Information
Hazard Codes		Xi
Risk Statements		36/37/38
Safety Statements		26-36
HS Code		29172090

1,3-Dimethyl-1,2,3,4-cyclobutanetetracarboxylic acid dianhydride uses：

Cyclobutane-1,2,3,4-tetracarboxylic dianhydride and diamine monomer are used for preparation a polyimide (PI), the type of polyimide has excellent electrical characteristics and optical type, with the material prepared the PI film, in addition to having a higher rate cast visible outside, and can withstand high temperatures thirty-four Baidu. Its performance is very good, is the preparation of a liquid crystal display with an ideal material for the film.