Table 10 to R-4.1

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Table 10 General classes of compounds in decreasing order of priority for choosing and naming a principal characteristic group

1 Radicals

2 Anions

3 Cations

4 Zwitterionic compounds

5 Acids (in the order COOH, C(O)O2H; then their S and Se derivatives followed by sulfonic, sulfinic, selenonic, etc., phosphonic, arsonic, etc., acids)

6 Anhydrides

7 Esters

8 Acid halides

9 Amides

10 Hydrazides

11 Imides

12 Nitriles

13 Aldehydes followed by Thioaldehydes, Selenoaldehydes, and Teluroaldehydes

14 Ketones followed by Thioketones, Selenoketones, and Telluroketones

15 Alcohols and Phenols followed by Thiols, Selenols, and Tellurols

16 Hydroperoxides followed by Thiohydroperoxides, Selenohydroperoxides, and Tellurohydroperoxides

17 Amines

18 Imines

19 Hydrazines, Phosphanes, etc.

20 Ethers followed by Sulfides, Selenides, and Tellurides

21 Peroxides followed by Disulfides, Diselenides, and Ditellurides

This HTML reproduction is as close as possible to the published version [see IUPAC, Commission on Nomenclature of Organic Chemistry. A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993), 1993, Blackwell Scientific publications, Copyright 1993 IUPAC]. If you need to cite these rules please quote this reference as their source.

Published with permission of the IUPAC by Advanced Chemistry Development, Inc., www.acdlabs.com, +1(416)368-3435 tel, +1(416)368-5596 fax. For comments or suggestions please contact [email protected]

1	Radicals
2	Anions
3	Cations
4	Zwitterionic compounds
5	Acids (in the order COOH, C(O)O2H; then their S and Se derivatives followed by sulfonic, sulfinic, selenonic, etc., phosphonic, arsonic, etc., acids)
6	Anhydrides
7	Esters
8	Acid halides
9	Amides
10	Hydrazides
11	Imides
12	Nitriles
13	Aldehydes followed by Thioaldehydes, Selenoaldehydes, and Teluroaldehydes
14	Ketones followed by Thioketones, Selenoketones, and Telluroketones
15	Alcohols and Phenols followed by Thiols, Selenols, and Tellurols
16	Hydroperoxides followed by Thiohydroperoxides, Selenohydroperoxides, and Tellurohydroperoxides
17	Amines
18	Imines
19	Hydrazines, Phosphanes, etc.
20	Ethers followed by Sulfides, Selenides, and Tellurides
21	Peroxides followed by Disulfides, Diselenides, and Ditellurides