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Safety Information

P2944

Sigma-Aldrich

Phthalic acid

ACS reagent, ≥99.5%

Synonym(s):

1,2-Benzenedicarboxylic acid

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About This Item

Linear Formula:
C6H4-1,2-(CO2H)2
CAS Number:
Molecular Weight:
166.13
Beilstein:
608199
EC Number:
MDL number:
UNSPSC Code:
12171500

grade

ACS reagent

Assay

≥99.5%

impurities

≤0.05% Insoluble matter
≤0.5% Water (H2O)

ign. residue

≤0.02% (as SO4)

mp

210-211 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.005%
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%
heavy metals (as Pb): ≤0.001%

SMILES string

OC(C1=C(C(O)=O)C=CC=C1)=O

InChI

1S/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12)

InChI key

XNGIFLGASWRNHJ-UHFFFAOYSA-N

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