MilliporeSigma
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01973

Supelco

4-Aminobenzoic acid

analytical standard

Synonym(s):
PABA, Vitamin Bx, Vitamin H1
Linear Formula:
H2NC6H4CO2H
CAS Number:
Molecular Weight:
137.14
Beilstein:
471605
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

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

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Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Ion Mobility: TWCCSN2 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.

Hazard Statements

Precautionary Statements

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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