402915
Phthalic acid
ACS reagent grade, ≥99.5%, powder or crystals
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
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
201-873-2
MDL number:
Beilstein/REAXYS Number:
608199
Assay:
≥99.5%
Form:
powder or crystals
Product Name
Phthalic acid, ACS reagent, ≥99.5%
grade
ACS reagent
Quality Level
assay
≥99.5%
form
powder or crystals
impurities
≤0.05% insolubles, ≤0.5% water
ign. residue
≤0.02%
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: ≤0.001%
functional group
carboxylic acid
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
General description
Phthalic acid (PA, PTA), also called as 1,2-benzenedicarboxylic acid is an aromatic carboxylic acid. It is the ortho form of the three phthalic acid isomers, the other two being isophthalic acid (meta form) and terephthalic acid (para form). PA is the starting material in the synthesis of plasticizers. A study on toxicity reveals that PA shows in vitro and in vivo toxicity. Its mineralization by photocatalysis using TiO2/UV system has been studied. It also is used as a potential tyrosinase inhibitor.
Application
Phthalic acid may be used as a catalyst for the thiocyanation of aromatics and heteroaromatics and as an interfacial protector for the preparation of ordered mesoporous γ-alumina. It may be used as a model compound in understanding the adsorption of aromatic carboxylic acids on gold surfaces.
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
334.4 °F
flash_point_c
168 °C
ppe
dust mask type N95 (US), Eyeshields, Gloves
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Inhibitory effect of phthalic Acid on tyrosinase: the mixed-type inhibition and docking simulations.
Shang-Jun Yin et al.
Enzyme research, 2011, 294724-294724 (2011-06-04)
Tyrosinase inhibition studies are needed due to the medicinal applications such as hyperpigmentation. For probing effective inhibitors of tyrosinase, a combination of computational prediction and enzymatic assay via kinetics was important. We predicted the 3D structure of tyrosinase, used a
A new synthetic procedure for ordered mesoporous γ-alumina using phthalic acid as an interfacial protector.
Huang F, et al.
Materials Letters, 65(2), 244-246 (2011)
Phthalic acid as a di-functional organocatalyst for the regioselective thiocyanation of aromatic compounds.
Sajjadifar S, et al.
Scientia Iranica. Transaction C, Chemistry, Chemical Engineering, 21(6), 2005-2005 (2014)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 402915-250G | 04061831986174 |
| 402915-1KG | 04061826714621 |
| 402915-25G | 04061831986181 |