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A9878

Sigma-Aldrich

4-Aminobenzoic acid

≥99%, for peptide synthesis, ReagentPlus®

Synonym(s):

para-Aminobenzoic acid, PABA, Vitamin Bx, Vitamin H1

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About This Item

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

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

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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.

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

Legal Information

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

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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

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Certificates of Analysis (COA)

Lot/Batch Number
0000291024
0000369375
0000344396
0000342372
MKCX0895

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Synthesis and antibacterial activity of some Schiff bases derived from 4-aminobenzoic acid.
Parekh J, et al.
J. Serb. Chem. Soc., 70(10), 1155-1155 (2005)
Electropolymerized 4-aminobenzoic acid based voltammetric sensor for the simultaneous determination of food azo dyes
G Ziyatdinova
Polymers, 14, 5429-5429 (2022)
Synthesis, Structure and Characterization of Some Metal Organic Framework Based on 4-Aminobenzoic Acid Schiff Base Linker
RJ Deghadi, et al.
Journal of Basic and Environmental Sciences, 8, 29-31 (2021)
Enhanced CO2 adsorption performance on amino-defective UiO-66 with 4-amino benzoic acid as the defective linker
TK Vo, et al.
Separation and Purification Technology, 274, 119079-119079 (2021)
Simple conversion of aromatic amines into azides
Q Liu
Organic Letters, 5, 2571-2572 (2003)
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