pKa and pKb Reference Table

Use table search to locate desired compound in database. Unless otherwise stated, pKa and pKb was measured at STP. For reference or additional information, please contact websupport@aatbio.com


Compound Name	Formula	pKa	pKb
(-)-Noradrenaline	C8H11NO3	8.58	5.42
(1r,2s)-(-)-Ephedrine	C10H15NO	9.65	4.35
(4-Nitrophenyl)phenyldiazene	C12H9N3O2	-3.47	17.47
(4-Pyridyl)-2-Pyridine	C10H8N2	4.77	9.23
(Piperidinomethyl)polystyrene	C5H11N	11.2	2.8
Rows per page: 1–5 of 1956

References

This online resource may be cited as follows

MLA	"Quest Database™ pKa and pKb Reference Table." AAT Bioquest, Inc., 2 Nov. 2025, https://www.aatbio.com/data-sets/pka-and-pkb-reference-table.
APA	AAT Bioquest, Inc. (2025, November 2). Quest Database™ pKa and pKb Reference Table. AAT Bioquest. https://www.aatbio.com/data-sets/pka-and-pkb-reference-table.
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This online resource has been cited in 2 publications, including

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Authors:

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Journal:

Applied Catalysis A: General (2025): 120626

Synthesis, structure characterization, Hirshfeld surface analysis, and computational studies of 3-nitro-1, 2, 4-triazol-5-one (NTO): acridine

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{\c{S}}en, Nilg{\"u}n and Pons, Jean-Fran{\c{c}}ois and Zorlu, Yunus and Dossi, Eleftheria and Persico, Federica and Temple, Tracey and Aslan, Nazife and Khumsri, Akachai

Journal:

Structural Chemistry (2024): 1--15