Phthalic acid

Name: Phthalic acid
Brand: SIAL

≥99.5% (T), powder or crystals, puriss. p.a.

Sinónimos:

1,2-Benzenedicarboxylic acid

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Fórmula lineal:

C₆H₄-1,2-(CO₂H)₂

Número CAS:

88-99-3

Peso molecular:

166.13

NACRES:

NA.21

PubChem Substance ID:

57652822

UNSPSC Code:

12352100

EC Number:

201-873-2

MDL number:

MFCD00002467

Beilstein/REAXYS Number:

608199

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Nombre del producto

Phthalic acid, puriss. p.a., ≥99.5% (T)

InChI key

XNGIFLGASWRNHJ-UHFFFAOYSA-N

InChI

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

SMILES string

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

grade

puriss. p.a.

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^-): ≤10 mg/kg
sulfate (SO₄^2-): ≤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

functional group

carboxylic acid

Quality Level

200

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Este artículo	402915	79255	Y0000766
Sigma-Aldrich 80010 Phthalic acid	Sigma-Aldrich 402915 Phthalic acid	Supelco 79255 Phthalic acid	Y0000766 Phthalic acid
grade puriss. p.a.	grade -	grade -	grade -
assay ≥99.5% (T)	assay ≥99.5%	assay ≥99.5% (GC), ≥99.5% (T)	assay -
Quality Level 200	Quality Level 200	Quality Level 100	Quality Level -
form powder or crystals	form powder or crystals	form -	form -
solubility water: soluble(lit.)	solubility -	solubility -	solubility -
anion traces chloride (Cl^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg	anion traces chloride (Cl^-): ≤0.001%, nitrate (NO₃^-): ≤0.005%, sulfate (SO₄^2-): ≤0.005%	anion traces -	anion traces -

Application

Phthalic acid may be used in the synthesis of benzoic acid.[1] 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.[2]

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.[1]

pictograms

GHS05

signalword

Danger

hcodes

H318

pcodes

P280 - P305 + P351 + P338

Hazard Classifications

Eye Dam. 1

Clase de almacenamiento

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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Improving detection sensitivity of amino acids in thyroid tissues by using phthalic acid as a mobile phase additive in hydrophilic interaction chromatography-electrospray ionization-tandem mass spectrometry.

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

Activation of PPARalpha and PPARgamma by environmental phthalate monoesters.

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

The environment and male fertility: recent research on emerging chemicals and semen quality.

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

Role of PPARalpha in mediating the effects of phthalates and metabolites in the liver.

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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