80010

Phthalic acid

puriss. p.a., ≥99.5% (T)

• Sinónimos: 1,2-Benzenedicarboxylic acid
• Fórmula lineal: C₆H₄-1,2-(CO₂H)₂
• Número de CAS: 88-99-3
• Peso molecular: 166.13
• Beilstein/REAXYS Number: 608199
• EC Number: 201-873-2
• MDL number: MFCD00002467
• UNSPSC Code: 12352100
• PubChem Substance ID: 57652822
• NACRES: NA.21

Propiedades

• grade: puriss. p.a.
• Quality Level: 200
• 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 (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
• 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

Descripción

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.

Información de seguridad

• pictograms: GHS05
• signalword: Danger
• hcodes: H318
• pcodes: P280 - P305 + P351 + P338
• 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