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161330

Sigma-Aldrich

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

≥94%

Synonym(s):

1,2,3,4-Cyclobutanetetracarboxylic dianhydride, Cyclobutanetetracarboxylic acid dianhydride, Cyclobutanetetracarboxylic dianhydride, Maleic anhydride cyclic dimer

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About This Item

Empirical Formula (Hill Notation):
C8H4O6
CAS Number:
4415-87-6
Molecular Weight:
196.11
Beilstein:
1430553
EC Number:
224-577-5
MDL number:
MFCD00004944
UNSPSC Code:
12352100
PubChem Substance ID:
24849922
NACRES:
NA.22

Assay

≥94%

form

solid

mp

>300 °C (lit.)

SMILES string

O=C1OC(=O)C2C1C3C2C(=O)OC3=O

InChI

1S/C8H4O6/c9-5-1-2(6(10)13-5)4-3(1)7(11)14-8(4)12/h1-4H

InChI key

YGYCECQIOXZODZ-UHFFFAOYSA-N

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Application

Cyclobutane-1,2,3,4-tetracarboxylic dianhydride was used to synthesize polyimide films and poly(amic acid) having liquid crystal alignment layers.
Reactant for:
  • Preparation of biologically and pharmacologically active molecules
  • Preparation of photosensitive polyimide material for high performance organic thin-film transistors
  • Selective crosslinking of polyimide for photonic devices

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Synthesis and characterization of novel polyimides with 1-octadecyl side chains for liquid crystal alignment layers.
Lee YJ, et al.
Polymers For Advanced Technologies, 18(3), 226-234 (2007)
The synthesis and X-ray structure of 1, 2, 3, 4-cyclobutane tetracarboxylic dianhydride and the preparation of a new type of polyimide showing excellent transparency and heat resistance.
Suzuki H, et al.
Journal of Polymer Science: Part A, General Papers, 38(1), 108-116 (2000)
Mei Zhang et al.
Polymers, 12(7) (2020-07-16)
Transparent polyimides (PI) films with outstanding overall performance are attractive for next generation optoelectronic and microelectronic applications. Semi-alicyclic PIs derived from alicyclic dianhydrides and aromatic diamines have proved effective to prepare transparent PIs with high transmittance. To optimize the combined

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