CAS 121-91-5: Isophthalic acid

Description: Isophthalic acid, with the CAS number 121-91-5, is a colorless crystalline organic compound classified as a dicarboxylic acid. It is an isomer of phthalic acid, distinguished by the positioning of its carboxyl groups on the benzene ring. Isophthalic acid is known for its moderate solubility in water and good solubility in organic solvents such as ethanol and acetone. It has a melting point that typically ranges around 300°C and is stable under normal conditions. This compound is primarily used in the production of polyesters, particularly in the manufacture of high-performance plastics and resins, due to its ability to enhance thermal stability and mechanical properties. Additionally, isophthalic acid serves as a building block in the synthesis of various dyes and pharmaceuticals. Its chemical formula is C8H6O4, and it exhibits properties typical of aromatic dicarboxylic acids, including the ability to undergo esterification and polymerization reactions.

Formula: C₈H₆O₄

InChI: 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: InChIKey=QQVIHTHCMHWDBS-UHFFFAOYSA-N

SMILES: O=C(O)C1=CC=CC(=C1)C(=O)O

Synonyms:

• 3-Carboxybenzoic acid
• Acide isophtalique
• Acido Isoftalico
• Benzene-1,3-Dicarboxylic Acid
• Isophthalic Acid
• Isophthalsaeure
• Isophthalsaure
• Isoterephthalic acid
• Nsc 15310
• Phthalic Acid, Iso
• Phthalic Acid, Meta-
• m-Benzenedicarboxylic acid
• m-Carboxybenzoic acid
• m-Dicarboxybenzene
• m-Phthalic acid
• benzene-1,3-dicarboxylate
• Isophthalic Acid/Benzene-1,3-dicarboxylic acid(IPA)
• 1,3-Benzenedicarboxylic acid

Isophthalic acid

CAS: 121-91-5

• Purity: 99.0%
• Color and Shape: Solid, Crystalline Powder or Powder
• Molecular weight: 166.1320037841797

Isophthalic Acid

CAS: 121-91-5

• Formula: C₈H₆O₄
• Purity: >99.0%(GC)(T)
• Color and Shape: White to Almost white powder to crystal
• Molecular weight: 166.13

Isophthalic acid, 99%

CAS: 121-91-5

Isophthalic acid is used as an intermediate for high performance unsaturated polyesters, resins for coatings, …

• Formula: C₈H₆O₄
• Purity: 99%
• Color and Shape: White, Powder or crystals or crystalline powder
• Molecular weight: 166.13

2-Iodoxybenzoic acid, stabilized

CAS: 121-91-561717-82-6 64297-64-9 65-85-0

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₇H₅IO₄
• Color and Shape: White to beige, Powder or crystals
• Molecular weight: 280.02

Isophthalic acid, 99%

CAS: 121-91-5

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₈H₆O₄
• Purity: 99%
• Molecular weight: 166.13

ISOPHTHALIC ACID

CAS: 121-91-5

• Formula: C₈H₆O₄
• Purity: 98%
• Color and Shape: Solid
• Molecular weight: 166.1308

Isophthalic Acid

CAS: 121-91-5

• Purity: 99%
• Molecular weight: 166.13g/mol

Isophthalic acid

CAS: 121-91-5

Isophthalic acid: used in PET bottle modifiers, gel coats, paints, coatings resins, high-performance polyesters.

• Formula: C₈H₆O₄
• Purity: 98%
• Color and Shape: White When Purified To The Grade Required For Use As A Polyester Feedstock Solid Crystalline Powder
• Molecular weight: 166.13

Isophthalic acid

CAS: 121-91-5

• Formula: C₈H₆O₄
• Color and Shape: Neat
• Molecular weight: 166.13

Isophthalic Acid

CAS: 121-91-5

• Formula: C₈H₆O₄
• Molecular weight: 166.13

Isophthalic Acid pure, 99%

CAS: 121-91-5

• Formula: C₈H₆O₄
• Purity: min. 99.0%
• Color and Shape: White, Crystalline powder
• Molecular weight: 166.14

Isophthalic Acid

CAS: 121-91-5

Applications Isophthalic Acid is a useful reagent for preparing semiconductor sealing materials, prepregs, build-up films, …

• Formula: C₈H₆O₄
• Color and Shape: White To Off-White
• Molecular weight: 166.13

Isophthalic acid

CAS: 121-91-5

Isophthalic acid is a fatty acid that can be found in the form of a …

• Formula: C₈H₆O₄
• Purity: Min. 95%
• Molecular weight: 166.13 g/mol