5-tert Butyl isophthalic acid, CAS No. 2359-09-3

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2359-09-3

Catalog No. EBD43944

CAS 2359-09-3

Name 5-tert Butyl isophthalic acid

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Basic Information

Synonyms: 5-tert-Butylisophthalicacid Isophthalicacid,5-tert-butyl- 5-tert-butylbenzene-1,3-dicarboxylicacid 1,3-Benzenedicarboxylicacid,5-(1,1-dimethylethyl)- 3-benzenedicarboxylicacid,5-(1,1-dimethylethyl)-1 5-(1,1-dimethylethyl)-3-benzenedicarboxylicacid 5-tert-butyl-1,3-benzenedicarboxylicacid 3-tert-butyl-5-carboxylicacidbenzoicacid 5-t-butylisophthalicacid 5-t-butyl-1,3-benzene-dicarboxylicacid 5-tertButylisophthalicacid

Molecular Formula: C12H14O4

Molecular Weight: 222.24

Categories: Materials Chemistry > Polymers and Macromolecular Materials > Polyester and Bio-based Polymer Precursors Synthetic Chemistry > Organic Building Blocks > Carboxylic Acids and Esters

Product Description:

5-tert-Butylisophthalic acid is an aromatic dicarboxylic acid derivative characterized by a benzene ring substituted with two carboxylic acid groups at the 1 and 3 positions and a bulky tert-butyl group at the 5 position. This structure imparts specific steric and electronic properties. Its primary industrial application is as a key monomer in the synthesis of high-performance polymers, particularly polyesters and polyamides. The tert-butyl group introduces steric hindrance and modifies the polymer's solubility, thermal properties, and chain packing, which is valuable for creating materials with tailored characteristics for engineering plastics, coatings, and specialty resins. It serves as a crucial building block for modifying polymer backbones to achieve desired mechanical strength, thermal stability, or processability. As a bifunctional carboxylic acid, it is also a versatile organic synthesis intermediate. It can undergo typical reactions of carboxylic acids, such as esterification and amidation, to construct more complex molecular architectures. This dual role makes it relevant in both materials science and synthetic organic chemistry research.

Physical Properties

Melting Point: >300 °C(lit.)

Boiling Point: 400 °C at 760 mmHg

Flash Point: 209.8 °C

Density: 1.226 g/cm3

Analytical Data

Appearance: white to very slightly yellow fine cryst. powder