Compound Q&A
What is Terephthalic acid (CAS: 100-21-0)?
Answer
Terephthalic acid, with the CAS number 100-21-0, is an aromatic dicarboxylic acid commonly used as a precursor in the production of polyethylene terephthalate (PET). Its chemical formula is C8H6O4, and it is a white crystalline solid with a melting point of approximately 300°C. It is soluble in organic solvents and has acidic properties, making it important in various chemical reactions and industrial processes.
About
CAS No
100-21-0
English Name
Terephthalic acid
Molecular Formula
C8H6O4
Molecular Weight
166.13199999999998 g/mol
SMILES
OC(=O)c1ccc(cc1)C(=O)O
InChIKey
KKEYFWRCBNTPAC-UHFFFAOYSA-N
Last Updated: 2025-08-25 01:07
