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I19209

Sigma-Aldrich

Isophthalic acid

99%

Synonym(s):

Benzene-1,3-dicarboxylic acid

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About This Item

Linear Formula:
C6H4-1,3-(CO2H)2
CAS Number:
Molecular Weight:
166.13
Beilstein:
1909332
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

99%

autoignition temp.

1198 °F

mp

341-343 °C (lit.)

SMILES string

OC(=O)c1cccc(c1)C(O)=O

InChI

1S/C8H6O4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H,(H,9,10)(H,11,12)

InChI key

QQVIHTHCMHWDBS-UHFFFAOYSA-N

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Application

Isophthalic acid can be used as a reactant to prepare:
  • Poly(m-phenyleneisophthalamide) by polycondensation with m-phenylenediamine via thermal solid-phase polymerization reaction.

It can also be used as a ligand to synthesize:
  • Metal coordination polymers by hydrothermal and sonochemical process.
  • Isophthalic acid-zirconium(IV) nanocomposite, which is used as a precursor to prepare crystalline tetragonal ZrO2 via thermal decomposition method.

Storage Class Code

13 - Non 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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Andrey S Klymchenko et al.
Nanoscale, 2(9), 1773-1780 (2010-09-08)
Self-assembly of organic molecules at solid-liquid interfaces is a route for developing novel functional materials on surfaces and modeling assembly phenomena in 3D. 5-Alkoxylated isophthalic acids (ISA) are known to self-assemble into two-dimensional (2D) lamellae at the interface between a
Yuki Fukuhara et al.
Applied and environmental microbiology, 76(2), 519-527 (2009-11-26)
The isophthalate (IPA) degradation gene cluster (iphACBDR) responsible for the conversion of IPA into protocatechuate (PCA) was isolated from Comamonas sp. strain E6, which utilizes phthalate isomers as sole carbon and energy sources via the PCA 4,5-cleavage pathway. Based on
Steven De Feyter et al.
Chimia, 66(1-2), 38-43 (2012-05-02)
The liquid/solid interface provides an interesting medium for molecular self-assembly and scanning tunneling microscopy is the preferred technique to analyse the structural features of the surface-supported self-assembled monolayers in this medium. An interesting aspect is the phenomenon of molecular dynamics
Synthesis of poly (m-phenyleneisophthalamide) by solid-state polycondensation of isophthalic acid with m-phenylenediamine
Zhang C, et al.
Journal of Polymer Science Part A: Polymer Chemistry, 49(22), 4725-4728 (2011)
Zafer Üstündağ et al.
The Analyst, 136(7), 1464-1471 (2011-02-16)
The scope of this study is to modify a Surface Plasmon Resonance (SPR) sensor slide with isophthalic acid to evaluate the possible application on the detection of copper(II) ions in aqueous media by total internal reflection ellipsometry. A gold sensor

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