phthalic acid

Also known as o-benzenedicarboxylic acid, ortho-phthalic acid, Naphthalinate, Naphthalinic acid, Phthalinic acid, M 2, Alizarinic acid, Phthalinate

chemical compound

Chemical data

Formula: C8H6O4
Molecular weight: 166.13 g/mol
IUPAC name: phthalic acid
SMILES: C1=CC=C(C(=C1)C(=O)O)C(=O)O
InChIKey: XNGIFLGASWRNHJ-UHFFFAOYSA-N
XLogP: 0.7
Polar surface area: 74.6 Å²
H-bond donors: 2
H-bond acceptors: 4
Formal charge: 0

via PubChem

Wikidata facts

Mass: 166.027

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canonical SMILES: C1=CC=C(C(=C1)C(=O)O)C(=O)O
chemical formula: C₈H₆O₄
Commons category: Phthalic acid
melting point: 230

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Article

In organic chemistry, phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2 and structure HO(O)C−C6H4−C(O)OH. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. Phthalic acid is one of three isomers of benzenedicarboxylic acid, the others being isophthalic acid and terephthalic acid.

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