4-Aminobenzoic acid
ALDRICH/100536 - ReagentPlus®, 99%
Synonym: 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
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: 100536-50G
This image depicts SKU: 100536-50G
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: 100536-250G
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: 100536-250G
This image depicts SKU: 100536-250G
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: 100536-50G
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: 100536-1KG
This image depicts SKU: 100536-1KG
| application(s) | peptide synthesis |
| assay | 99% |
| density | 1.374 g/mL at 25 °C (lit.) |
| form | solid |
| 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 | 95% ethanol: soluble 5%, clear to slightly hazy, colorless to yellow |
| Application: | 4-Aminobenzoic acid may be used in the following studies: • Covalent modification of glassy carbon electrode. • Synthesis of 1,4-(2-chlorobenzylidene) • Spectrophotometric determination of the trace amounts of dopamine, methyldopa and levodopa. • Synthesis of 1:1 proton-transfer compound with 5-sulfosalicylic acid. |
| General description: | 4-Aminobenzoic acid (4-ABA) acts as an bacterial cofactor and participates in the synthesis of folic acid. It is a versatile reagent for structure extension through linear hydrogen-bonding associations, involving both the carboxylic acid and amine functional groups. Formation of 4-ABA monolayer film on glassy carbon electrode (GCE) by amino cation radical method has been described. Molecular adducts of 4-ABA have been prepared and their characterization by infrared spectroscopy and X-ray diffration methods have been reported. |
| Legal Information: | ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 5 kg in poly drum |
| Packaging: | 50, 250 g in poly 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.) |
| UNSPSC | 12352200 |