P2944
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
EC Number:
201-873-2
UNSPSC Code:
12171500
MDL number:
Beilstein/REAXYS Number:
608199
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
SMILES string
OC(C1=C(C(O)=O)C=CC=C1)=O
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%
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