4-Aminobenzoic acid
SIGMA/A9878 - ReagentPlus®, ≥99%
Synonym: para-Aminobenzoic acid; PABA; Vitamin Bx; Vitamin H1
CAS Number: 150-13-0
Empirical Formula (Hill Notation): C7H7NO2
Molecular Weight: 137.14
EC Number: 205-753-0
MDL Number: MFCD00007894
Linear Formula: H2NC6H4CO2H
Product Type: Chemical
FT-IR Raman Spectra for PABA.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: A9878-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: A9878-25G
| application(s) | peptide synthesis |
| assay | ≥99% |
| biological source | synthetic (organic) |
| density | 1.374 g/mL at 25 °C (lit.) |
| form | powder |
| InChI | 1S/C7H7NO2/c8-6-3-1-5(2-4 |
| InChI key | ALYNCZNDIQEVRV-UHFFFAOYSA |
| mp | 187-189 °C (lit.) |
| product line | ReagentPlus® |
| Quality Level | 200  |
| reaction suitability | reaction type: solution phase peptide synthesis |
| SMILES string | Nc1ccc(cc1)C(O)=O |
| solubility | ethanol: 50 mg/mL, clear, colorless to faintly yellow |
| storage temp. | room temp |
| Application: | 4-Aminobenzoic acid is used: • As a building block in the synthesis of Polyamides • As a substrate in folic acid production • In the synthesis of Schiff base • As an organic ligand in metal-organic framework (MOFs) synthesis |
| 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. |
| Legal Information: | ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Packaging: | 5, 25, 100 g in glass bottle |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-43 |
| Safety Statements | 26-36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 2 |
| Flash Point(F) | 339.8 °F |
| Flash Point(C) | 171 °C |
| Purity | ≥99% |
| mp | 187-189 °C (lit.) |
| Density | 1.374 g/mL at 25 °C (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12352106 |