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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Reference substances

Reference substances

Currently viewing:
IUPAC name:
benzene-1,4-dicarboxylic acid

Inventory

EC number:
202-830-0
EC name:
Terephthalic acid
CAS number:
100-21-0
CAS number:
100-21-0
Synonyms
Names:
1,4-Benzenedicarboxylic acid
TPA benzene-1,4-dicarboxylic acid para-phthalic acid
Terephthalate para-phthalic acid
p-benzenedicarboxylic acid
p-phthalic acid
Identifier:
IUPAC name
1,4-Benzenedicarbocyclic acid
Identifier:
IUPAC name
1,4-Benzenedicarboxylic acid
Identifier:
IUPAC name
1,4-benzenedicarbossilic acid
Identifier:
IUPAC name
Benzene-1,4-dicarboxylic acid
Identifier:
IUPAC name
Terephthalic Acid
Identifier:
IUPAC name
Terephthalic acid
Identifier:
IUPAC name
benzene-1,4-dicarboxylic acid
Identifier:
IUPAC name
benzene-1,4-dicarboxylic acid
Identifier:
IUPAC name
terephthalic acid
Identifier:
ChemSpider ID
CSID:7208
Identifier:
common name
1,4-Benzenedicarboxylic acid
Identifier:
common name
1,4-dicarboxybenzene
Identifier:
common name
benzene-1,4-dicarboxylic acid
Identifier:
common name
p-Benzenedicarboxylic acid
Identifier:
common name
p-Phthalic acid
Identifier:
PubChem
7489
Identifier:
other: Molecular formula
C8H6O4
Identifier:
other: InChl
1S/C8H6O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
Identifier:
other: SMILES notation
C1=CC(=CC=C1C(=O)O)C(=O)O
Identifier:
other: SMILES notation
C1=CC(=CC=C1C(=O)[O-])C(=O)[O-]
Identifier:
other: Molecular formula
C8H6O4
Identifier:
other: InChl
InChI=1/C8H6O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
Identifier:
other: InChl
InChI=1S/C8H6O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
Identifier:
other: InChl
KKEYFWRCBNTPAC-UHFFFAOYSA-L
Identifier:
other: SMILES notation
O=C(O)C1=CC=C(C(O)=O)C=C1
Identifier:
other: SMILES notation
O=C(O)c1ccc(C(=O)O)cc1
Identifier:
other: SMILES notation
c1(C(O)=O)ccc(C(O)=O)cc1
Identifier:
other: SMILES notation
c1cc(ccc1C(=O)O)C(=O)O
terephthalic acid

Molecular and structural information

Molecular formula:
C8H6O4
Molecular weight:
166.131
SMILES notation:
OC(=O)c1ccc(cc1)C(=O)O
InChl:
InChI=1/C8H6O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
Structural formula:
Chemical structure

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