Skip to Content
Merck

Key Documents

View All Documentation

8.22312

4-Aminobenzoic acid

≥99.0% (acidimetric)

Synonym(s):

4-Aminobenzoic acid, PABA

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C7H7NO2
CAS Number:
150-13-0
Molecular Weight:
137.14
UNSPSC Code:
12352106
EC Index Number:
205-753-0
NACRES:
NA.22
MDL number:
MFCD00007894
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

4-Aminobenzoic acid, for synthesis

Quality Level

200

assay

≥99.0% (acidimetric)

form

solid

potency

6000 mg/kg LD50, oral (Rat)

pH

3.5 (20 °C, 5 g/L in H2O)

mp

186-189 °C

density

1.38 g/cm3 at 20 °C

bulk density

200 kg/m3

storage temp.

2-30°C

SMILES string

[N+H3]c1ccc(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

Application

  • Synthesis of Yellow Fluorescence Carbon Dots: 4-Aminobenzoic acid is used to produce yellow fluorescence carbon dots, highlighting its application in vitamin B(12) detection and cell imaging (Zhao et al., 2023).
  • Enhanced Production of 4-Amino-3-Hydroxybenzoic Acid: 4-hydroxybenzoate 3-hydroxylase was engineered to convert glucose into 4-amino-3-hydroxybenzoic acid in Corynebacterium glutamicum, illustrating a biotechnological application of 4-Aminobenzoic acid (Nonaka et al., 2023).
  • Electrochemical Sensor Development: The compound was used to functionalize diazonium salt modified screen-printed graphene electrodes, creating a rapid diagnostic tool for detecting interleukin-6 (IL-6), relevant in sepsis diagnosis (Jesadabundit et al., 2023).

Analysis Note

Assay (acidimetric): ≥ 99.0 %
Melting range (lower value): ≥ 185 °C
Melting range (upper value): ≤ 188 °C
Identity (IR): passes test

Still not finding the right product?

Explore all of our products under 4-Aminobenzoic acid

hcodes

H412

Hazard Classifications

Aquatic Chronic 3

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

339.8 °F

flash_point_c

171 °C

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library