Skip to Content
Merck
All Photos(3)

Key Documents

View All Documentation

I19209

Sigma-Aldrich

Isophthalic acid

99%

Synonym(s):

Benzene-1,3-dicarboxylic acid

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Linear Formula:
C6H4-1,3-(CO2H)2
CAS Number:
121-91-5
Molecular Weight:
166.13
Beilstein:
1909332
EC Number:
204-506-4
MDL number:
MFCD00002516
UNSPSC Code:
12352100
PubChem Substance ID:
24895954
NACRES:
NA.22

Quality Level

100

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

Looking for similar products? Visit Product Comparison Guide

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
WXBF3744V
WXBF2655V
WXBD9820V
WXBF1574V
WXBD7992V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Suman Kalyan Pal et al.
Dalton transactions (Cambridge, England : 2003), (45)(45), 10021-10031 (2009-11-12)
Pyrene chromophores carrying different rigid rod spacer groups (ethynylene, ethynylene-phenylene-ethynylene, and ethynylene-bicyclo[2.2.2]octylene-ethynylene) and bound to TiO2 nanostructured materials via an isophthalic acid (Ipa) anchor group have been investigated using quantum chemical calculations in order to elucidate structural and electronic properties
Yue-Xiu Si et al.
International journal of biological macromolecules, 48(4), 700-704 (2011-03-05)
Using inhibition kinetics and computational simulation, we studied the reversible inhibition of tyrosinase by isophthalic acid (IPA). IPA inhibited tyrosinase in a complex manner with K(i)=17.8 ± 1.8mM. Measurements of intrinsic and ANS-binding fluorescence showed that IPA induced no changes
Jörg Lincke et al.
Inorganic chemistry, 51(14), 7579-7586 (2012-07-04)
An isomorphous series of 10 microporous copper-based metal-organic frameworks (MOFs) with the general formulas (∞)(3)[{Cu(3)(μ(3)-OH)(X)}(4){Cu(2)(H(2)O)(2)}(3)(H-R-trz-ia)(12)] (R = H, CH(3), Ph; X(2-) = SO(4)(2-), SeO(4)(2-), 2 NO(3)(2-) (1-8)) and (∞)(3)[{Cu(3)(μ(3)-OH)(X)}(8){Cu(2)(H(2)O)(2)}(6)(H-3py-trz-ia)(24)Cu(6)]X(3) (R = 3py; X(2-) = SO(4)(2-), SeO(4)(2-) (9, 10)) is presented
Preparation and characterization of tetragonal zirconium oxide nanocrystals from isophthalic acid-zirconium (IV) nanocomposite as a new precursor
Ranjbar M, et al.
International Journal of Nanoscience, 8(4), 191-196 (2012)
Sonochemical synthesis of two nano-sized nickel (II) coordination polymers derived from flexible bis (benzimidazole) and isophthalic acid ligands
Li Jun-Xuan, et al.
Polyhedron, 160, 92-100 (2019)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service