01973

4-Aminobenzoic acid

analytical standard

• Synonym(s): PABA, Vitamin B_x, Vitamin H₁
• Linear Formula: H₂NC₆H₄CO₂H
• CAS Number: 150-13-0
• Molecular Weight: 137.14
• Beilstein: 471605
• EC Number: 205-753-0
• MDL number: MFCD00007894
• PubChem Substance ID: 329747378
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• Assay: ≥98.0% (HPLC)
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• mp: 186-188 °C; 187-189 °C (lit.)
• density: 1.374 g/mL at 25 °C (lit.)
• application(s): cleaning products; cosmetics; environmental; food and beverages; personal care
• format: neat
• 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

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Ion Mobility: ^TWCCS_N2 value of 133.2 Å2 [M+H]⁺

The collision cross section (CCS) measurement was provided by Waters Corporation, using the SYNAPT XS mass spectrometer.
For a description and overview of how ion mobility enables the measurement of the CCS of an ion visit ims.waters.com.
Further information on the SYNAPT XS mass spectrometer can be found on the IMS microsite and product webpage.

^TWCCS measurements are expected to be within 2% of this reference value.

P/N 01973 is part of the Waters Extractables & Leachables UNIFI scientific library which can be downloaded from Waters Marketplace.

Safety Information

• 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
• Flash Point(C): 171 °C