A9878

4-Aminobenzoic acid

≥99%, for peptide synthesis, ReagentPlus^®

• Synonym(s): para-Aminobenzoic acid, PABA, Vitamin B_x, Vitamin H₁
• Linear Formula: H₂NC₆H₄CO₂H
• CAS Number: 150-13-0
• Molecular Weight: 137.14
• Beilstein: 471605
• EC Number: 205-753-0
• MDL number: MFCD00007894
• UNSPSC Code: 12352106
• PubChem Substance ID: 24891403
• NACRES: NA.22

Properties

• Product Name: 4-Aminobenzoic acid, ReagentPlus^®, ≥99%
• biological source: synthetic (organic)
• Quality Level: 100; 200
• product line: ReagentPlus^®
• Assay: ≥99%
• form: powder
• reaction suitability: reaction type: solution phase peptide synthesis
• mp: 187-189 °C (lit.)
• solubility: ethanol: 50 mg/mL, clear, colorless to faintly yellow
• density: 1.374 g/mL at 25 °C (lit.)
• application(s): peptide synthesis
• storage temp.: 2-8°C
• SMILES string: Nc1ccc(cc1)C(O)=O
• InChI: 1S/C7H7NO2/c8-6-3-1-5(2-4-6)7(9)10/h1-4H,8H2,(H,9,10)
• InChI key: ALYNCZNDIQEVRV-UHFFFAOYSA-N

Description

General description

4-Aminobenzoic acid, also known as para-aminobenzoic acid (PABA), is utilized as a precursor in the synthesis of aromatic amines and azo dyes.[1][2]

Application

4-Aminobenzoic acid is used:

• As a building block in the synthesis of Polyamides[3]
• As a substrate in folic acid production[4]
• In the synthesis of Schiff base[5]
• As an organic ligand in metal-organic framework (MOFs) synthesis[6]

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Hazard Statements: H412
• Precautionary Statements: P273 - P501
• Hazard Classifications: Aquatic Chronic 3
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): 339.8 °F - closed cup
• Flash Point(C): 171 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves