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CAS 4316-23-8

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4-Methylphthalic acid

Description:
4-Methylphthalic acid, also known as 4-methyl-1,2-benzenedicarboxylic acid, is an aromatic dicarboxylic acid characterized by the presence of two carboxylic acid groups (-COOH) attached to a phthalic acid structure, with a methyl group (-CH3) positioned at the para position relative to one of the carboxylic groups. This compound is typically a white crystalline solid that is soluble in polar organic solvents but has limited solubility in water. It exhibits a melting point that varies depending on purity and specific conditions. 4-Methylphthalic acid is used in various applications, including the synthesis of plasticizers, resins, and dyes, and serves as an intermediate in organic synthesis. Its chemical properties include the ability to undergo typical reactions of carboxylic acids, such as esterification and acid-base reactions. Additionally, it may exhibit some degree of biological activity, necessitating careful handling and consideration of safety protocols in laboratory and industrial settings.
Formula:C9H8O4
InChI:InChI=1S/C9H8O4/c1-5-2-3-6(8(10)11)7(4-5)9(12)13/h2-4H,1H3,(H,10,11)(H,12,13)
InChI key:InChIKey=CWJJAFQCTXFSTA-UHFFFAOYSA-N
SMILES:C(O)(=O)C1=C(C(O)=O)C=C(C)C=C1
Synonyms:
  • 1,2-Benzenedicarboxylic Acid, 4-Methyl-
  • 224-333-8
  • 4-Methyl-1,2-benzenedicarboxylic acid
  • 4-Methylbenzene-1,2-Dicarboxylate
  • 4-Methylbenzene-1,2-Dicarboxylic Acid
  • NSC 83573
  • Phthalic acid, 4-methyl-
  • 4-Methylphthalic acid
  • 4-Methylphthalic Acid
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