8.22312
4-Aminobenzoic acid
≥99.0% (acidimetric)
Synonym(s):
4-Aminobenzoic acid, PABA
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About This Item
Empirical Formula (Hill Notation):
C7H7NO2
CAS Number:
Molecular Weight:
137.14
UNSPSC Code:
12352106
EC Index Number:
205-753-0
NACRES:
NA.22
MDL number:
Product Name
4-Aminobenzoic acid, for synthesis
Quality Level
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
Melting range (lower value): ≥ 185 °C
Melting range (upper value): ≤ 188 °C
Identity (IR): passes test
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hcodes
pcodes
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)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 8223129025 | 04022536751320 |
| 8223120250 | 04022536488790 |
| 8223121000 | 04022536488806 |