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402915

Sigma-Aldrich

Phthalsäure

ACS reagent, ≥99.5%

Synonym(e):

1,2-Benzoldicarbonsäure

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About This Item

Lineare Formel:
C6H4-1,2-(CO2H)2
CAS-Nummer:
88-99-3
Molekulargewicht:
166.13
Beilstein:
608199
EG-Nummer:
201-873-2
MDL-Nummer:
MFCD00002467
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24865138
NACRES:
NA.21

Qualität

ACS reagent

Qualitätsniveau

200

Assay

≥99.5%

Form

powder or crystals

Verunreinigungen

≤0.05% insolubles
≤0.5% water

Glührückstand

≤0.02%

mp (Schmelzpunkt)

210-211 °C (dec.) (lit.)

Anionenspuren

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

Kationenspuren

Fe: ≤0.001%
heavy metals: ≤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)

InChIKey

XNGIFLGASWRNHJ-UHFFFAOYSA-N

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Allgemeine Beschreibung

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.

Anwendung

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.

Piktogramme

Corrosion
GHS05

Signalwort

Danger

H-Sätze

H318

Gefahreneinstufungen

Eye Dam. 1

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

334.4 °F

Flammpunkt (°C)

168 °C

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves

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Analysenzertifikate (COA)

Lot/Batch Number
BCCG9574
BCCG5265
BCCF8161
BCCD2955
BCCC6384

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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)
Modeling of photocatalytic mineralization of phthalic acid in TiO2 suspension using response surface methodology (RSM).
Abaamrane A, et al.
Desalination and Water Treatment, 53(1), 249-256 (2015)
Du Yeon Bang et al.
Toxicological research, 27(4), 191-203 (2011-12-01)
There has been growing concern about the toxicity of phthalate esters. Phthalate esters are being used widely for the production of perfume, nail varnish, hairsprays and other personal/cosmetic uses. Recently, exposure to phthalates has been assessed by analyzing urine for
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