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80010

Sigma-Aldrich

Phthalic acid

puriss. p.a., ≥99.5% (T)

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Synonym(s):
1,2-Benzenedicarboxylic acid
Linear Formula:
C6H4-1,2-(CO2H)2
CAS Number:
Molecular Weight:
166.13
Beilstein/REAXYS Number:
608199
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

puriss. p.a.

Quality Level

assay

≥99.5% (T)

form

powder or crystals

ign. residue

≤0.02% (as SO4)

mp

210-211 °C (dec.) (lit.)

solubility

water: soluble(lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

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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This Item
402915P39303Y0000766
Phthalic acid puriss. p.a., ≥99.5% (T)

80010

Phthalic acid

Phthalic acid ACS reagent, ≥99.5%

402915

Phthalic acid

Phthalic acid reagent grade, 98%

P39303

Phthalic acid

Phthalic acid European Pharmacopoeia (EP) Reference Standard

Y0000766

Phthalic acid

assay

≥99.5% (T)

assay

≥99.5%

assay

98%

assay

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

-

form

powder or crystals

form

powder or crystals

form

crystalline powder

form

-

solubility

water: soluble(lit.)

solubility

-

solubility

-

solubility

-

mp

210-211 °C (dec.) (lit.)

mp

210-211 °C (dec.) (lit.)

mp

210-211 °C (dec.) (lit.)

mp

210-211 °C (dec.) (lit.)

General description

Phthalic acid (1,2-benzenedicarboxylic acid) is an aromatic dicarboxylic acid. On heating, it undergoes dehydration to afford cyclic anhydride. It can be synthesized from phthalic anhydride.

Application

Phthalic acid may be used in the synthesis of benzoic acid. It may be used to constitute the mobile phase during hydrophilic interaction liquid chromatography (HILIC) coupled with electrospray ionization tandem mass spectrometric (ESI-MS/MS) analysis of free amino acids (AAs) in human thyroid tissues.

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk_germany

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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Wanshu Qi et al.
Analytica chimica acta, 870, 75-82 (2015-03-31)
In this work, 0.08 mmol L(-1) of phthalic acid was introduced as a mobile phase additive to quantify free amino acids (AAs) by hydrophilic interaction liquid chromatography (HILIC) coupled with electrospray ionization tandem mass spectrometry (ESI-MS/MS). The addition of phthalic
Christopher H Hurst et al.
Toxicological sciences : an official journal of the Society of Toxicology, 74(2), 297-308 (2003-06-14)
Phthalate esters are widely used as plasticizers in the manufacture of products made of polyvinyl chloride. Mono-(2-ethylhexyl)-phthalate (MEHP) induces rodent hepatocarcinogenesis by a mechanism that involves activation of the nuclear transcription factor peroxisome proliferator-activated receptor-alpha (PPARalpha). MEHP also activates PPAR-gamma
Russ Hauser
Seminars in reproductive medicine, 24(3), 156-167 (2006-06-29)
Scientific and public concern about the potential risk of environmental chemicals to male reproductive health has been heightened by reports of downward trends in semen quality, as well as increased rates of developmental urogenital tract anomalies and testicular cancer. Of
Paula J Lapinskas et al.
Toxicology, 207(1), 149-163 (2004-12-14)
Phthalate esters belong to a large class of compounds known as peroxisome proliferators (PP). PP include chemicals that activate different subtypes of the peroxisome proliferator-activated receptor (PPAR) family. The ability of phthalate esters and their metabolites to activate responses through
Eagleson M.
Concise Encyclopedia Chemistry, 832-832 (1994)

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