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A9878 Sigma-Aldrich

4-Aminobenzoic acid

ReagentPlus®, ≥99%

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

  • CAS Number 150-13-0

  • Linear Formula H2NC6H4CO2H

  • Molecular Weight 137.14

  •  Beilstein/REAXYS Number 471605

  •  EC Number 205-753-0

  •  MDL number MFCD00007894

  •  PubChem Substance ID 24891403

  •  NACRES NA.22

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Properties

Related Categories Amino acids, Aromatic Amino Acids, Biochemicals and Reagents, Camostat Mesylate, Cell Biology,
Quality Level   100
biological source   synthetic (organic)
product line   ReagentPlus®
assay   ≥99%
form   powder
application(s)   peptide synthesis: suitable
mp   187-189 °C (lit.)
solubility   ethanol: 50 mg/mL, clear, colorless to faintly yellow
density   1.374 g/mL at 25 °C (lit.)
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

Description

Application

4-Aminobenzoic acid (4-ABA) can be used in the synthesis of:
• Schiff bases based on 4-ABA with good antibacterial activity.
• Co(II) and Mn(II) salts of 4-ABA supported on silica gel which in turn can be used as catalysts in oxidation of thiols to disulfides.
• 4-amino-3-bromobenzoic acid.
• Curing agent, N-(4-carboxyphenyl)trimellitimide (NCPT).

Packaging

5, 25, 100 g in glass bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 2
Flash Point(F) 
339.8 °F
Flash Point(C) 
171 °C

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

MSMLS Online Plate Map

Metabolite descriptors included with the software download upon purchase of the product include: Name, Parent CID, molecular formula, molecular weight, CAS, ChEBI, HMDB ID, PubChem Compound and Subst...
Keywords: Mass spectrometry, Metabolites

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Peer-Reviewed Papers
15

References

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