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80010 Sigma-Aldrich

Phthalic acid

puriss. p.a., ≥99.5% (T)

Synonym: 1,2-Benzenedicarboxylic acid

  • CAS Number 88-99-3

  • Linear Formula C6H4-1,2-(CO2H)2

  • Molecular Weight 166.13

  •  Beilstein Registry Number 608199

  •  EC Number 201-873-2

  •  MDL number MFCD00002467

  •  PubChem Substance ID 24887512

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Properties

Related Categories Acids, Acids & Bases, Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography,
InChI Key   XNGIFLGASWRNHJ-UHFFFAOYSA-N
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-): ≤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

Description

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.

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.

Price and Availability

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Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
TH9625000
Protocols & Articles

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