Identification
Name		Cyclobutane-1,2,3,4-tetracarboxylic dianhydride
Synonyms		1,2,3,4-Cyclobutanetetracarboxylic dianhydride Cyclobutanetetracarboxylic acid dianhydride Cyclobutanetetracarboxylic dianhydride Maleic anhydride cyclic dimer
Molecular Structure
Molecular Formula		C8H4O6
Molecular Weight		196.11
CAS Registry Number		4415-87-6
EINECS		224-577-5
Properties
Melting point		>300 ºC
Boiling point		545.3±50.0 °C
density		1.823±0.06 g/cm3
Safety Data
Hazard Symbols		Xi
Risk Codes		R36/37/38
Safety Description		S26;S36

Cyclobutane-1,2,3,4-tetracarboxylic 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.

Cyclobutane-1,2,3,4-tetracarboxylic dianhydride Reactant for:

1）Preparation of biologically and pharmacologically active molecules

2）Preparation of photosensitive polyimide material for high performance organic thin-film transistors

3）Selective crosslinking of polyimide for photonic devices