PHTHALIC ACID (C005B-086384)

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.

Molecular Weight: 166.13. Empirical Formula: C₈H₆O₄. linearFormula: C₆H₄-1,2-(CO₂H)₂. 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. Pictograms: GHS07. Signal Word: Warning. Hazard Statements: H315 - H319 - H335. Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338. Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3. Target Organs: Respiratory system. Storage Class Code: 11 - Combustible Solids. WGK: WGK 1. Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves.