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524492

Sigma-Aldrich

4,4′-Oxydiphthalic anhydride

97%

Synonym(s):

3,3′,4,4′-Diphenyl ether tetracarboxylic acid dianhydride, 3,3′,4,4′-Diphenyl ether tetracarboxylic dianhydride, 3,3′,4,4′-Diphenyl oxide tetracarboxylic dianhydride, 5,5′-Oxybis[1,3-isobenzofurandione]

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About This Item

Empirical Formula (Hill Notation):
C16H6O7
CAS Number:
1823-59-2
Molecular Weight:
310.21
EC Number:
412-830-4
MDL number:
MFCD00039144
UNSPSC Code:
12162002
PubChem Substance ID:
24874416
NACRES:
NA.23

Quality Level

100

Assay

97%

mp

225-229 °C (lit.)

SMILES string

O=C1OC(=O)c2cc(Oc3ccc4C(=O)OC(=O)c4c3)ccc12

InChI

1S/C16H6O7/c17-13-9-3-1-7(5-11(9)15(19)22-13)21-8-2-4-10-12(6-8)16(20)23-14(10)18/h1-6H

InChI key

QQGYZOYWNCKGEK-UHFFFAOYSA-N

Hazard Statements

H412

Precautionary Statements

P273

Hazard Classifications

Aquatic Chronic 3

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

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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Peng-Yang Huang et al.
Nanomaterials (Basel, Switzerland), 10(1) (2020-01-02)
This study investigated films with remarkably high electrical conductivity after they were easily prepared from organic/inorganic nanohybrid solutions containing an organic polymeric dispersant and two-dimensional nanoscale silicate platelets as the inorganic stabilizer dispersed with silver nanoparticles. Transmission electron microscopy shows
Meng-Ge Huangfu et al.
Polymers, 11(6) (2019-06-05)
Protection of intrinsically brittle quartz chromatographic columns (CCs) from breakage or property deterioration in gas chromatography (GC) analysis has become an important research topic regarding high-temperature GC techniques. Polyimide (PI) has proved to be the most suitable protective coating for
An Yang et al.
Dental materials journal, 36(5), 560-565 (2017-06-02)
The aim of the study was to evaluate the effect of modifying polymethyl methacrylate (PMMA) denture base material with polyimide (PI) on its flexural property and biocompatibility. Low molecular weight (1,500 g/mol) PI was synthesized and small amount of PI

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