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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Inventory

EC number:
204-506-4
EC name:
Isophthalic acid
CAS number:
121-91-5
CAS number:
121-91-5
Synonyms
Names:
1,3-Benzenedicarboxylic acid
3-Carboxybenzoic acid
Isophthalate
m-Benzenedicarboxylic acid
m-Phthalic acid
m-benzenedicarboxylic acid
m-phthalic acid
Identifier:
IUPAC name
1,3 Benzene dicarboxylic acid
Identifier:
IUPAC name
1,3 benzene dicarboxylic acid
Identifier:
IUPAC name
Benzene-1,3- dicarboxylic acid
Identifier:
IUPAC name
Benzene-1,3-dicarboxylic acid
Identifier:
IUPAC name
Isophthalic acid
Identifier:
IUPAC name
benzene-1,3-dicarboxylic acid
Identifier:
IUPAC name
benzene-1,3-dicarboxylic acid
Identifier:
other: InChl
1S/C8H6O4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
Identifier:
other: SMILES notation
C1=CC(=CC(=C1)C(=O)O)C(=O)O
Identifier:
other: InChl
InChI=1S/C8H6O4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
Identifier:
other: SMILES notation
O=C(O)c1cccc(C(=O)O)c1
Identifier:
other: SMILES notation
c1cc(cc(c1)C(=O)O)C(=O)O
isophthalic acid

Molecular and structural information

Molecular formula:
C8H6O4
Molecular weight:
166.131
SMILES notation:
OC(=O)c1cccc(c1)C(=O)O
InChl:
InChI=1/C8H6O4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
Structural formula:
Chemical structure

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