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

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)

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

Ref: 3B-I0155

Isophthalic acid, 99%

CAS: 121-91-5

Isophthalic acid is used as an intermediate for high performance unsaturated polyesters, resins for coatings, high solids paints, gel coats and modifier of polyethylene terephthalate for bottles. It acts as precursors for the fire-resistant material nomex as well as used in the preparation of high-p

Formula: C₈H₆O₄

Purity: 99%

Color and Shape: White, Powder or crystals or crystalline powder

Molecular weight: 166.13

Ref: 02-A14445

ISOPHTHALIC ACID

CAS: 121-91-5

Formula: C₈H₆O₄

Purity: 95%

Color and Shape: Solid

Molecular weight: 166.1308

Ref: IN-DA003521

Isophthalic Acid

CAS: 121-91-5

Isophthalic Acid

Purity: 99%

Molecular weight: 166.13g/mol

Ref: 54-OR1013604

Isophthalic acid

CAS: 121-91-5

Isophthalic acid is an aromatic dicarboxylic acid,a raw material for the production of polyester resins, alkyd resins, and unsaturated polyester resins

Formula: C₈H₆O₄

Purity: 99.86%

Color and Shape: White When Purified To The Grade Required For Use As A Polyester Feedstock Solid Crystalline Powder

Molecular weight: 166.13

Ref: TM-T20868

Isophthalic acid

CAS: 121-91-5

Formula: C₈H₆O₄

Color and Shape: Neat

Molecular weight: 166.13

Ref: 04-C14447000

Isophthalic Acid

CAS: 121-91-5

Formula: C₈H₆O₄

Molecular weight: 166.13

Ref: 4Z-P-151012

Isophthalic Acid

CAS: 121-91-5

Applications Isophthalic Acid is a useful reagent for preparing semiconductor sealing materials, prepregs, build-up films, solder resists, dry films, and printed wiring boards.
References Matsumura, Y., & Nakamura, A.: PCT Int. Appl. (2021), WO 2021006164 A1

Formula: C₈H₆O₄

Color and Shape: White To Off-White

Molecular weight: 166.13

Ref: TR-I822008

Isophthalic acid

CAS: 121-91-5

Formula: C₈H₆O₄

Purity: 95%

Color and Shape: Solid, Crystalline Powder or Powder

Molecular weight: 166.132

Ref: 10-F240952

Isophthalic Acid pure, 99%

CAS: 121-91-5

Formula: C₈H₆O₄

Purity: min. 99.0%

Color and Shape: White, Crystalline powder

Molecular weight: 166.14

Ref: SR-18018