Radical name | Formula | Based on rule no. |
Palmitoyl (unsubstituted only) |
C-404.1 | |
Pentacenyl | A-21.1, A-24.2 | |
Pentacontyl | A-1.2 | |
Pentacosyl | A-1.2 | |
Pentadecanoyl | C-403.1 | |
Pentadecyl | A-1.2 | |
Pentafluorothio | C-621.2 | |
Pentalenyl | A-21.1, A-24.2 | |
Pentamethylene | A-4.2 | |
pentanedioyl, see Glutaryl |
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pentanoyl, see Valeryl |
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Pentapheneyl (from pentaphene) |
A-21.1, A-24.2 | |
Pentazolyl | B-1, B-5.11 | |
Pentenyl (2- shown) | A-3.5 | |
2-Penten-4-ynyl | A-3.5 | |
Pentyl (replacing amyl) |
A-1.2 | |
tert-Pentyl (unsubstituted only) |
A-2.25 | |
Pentylidene | A-4.1 | |
Pentylidyne | A-4.1 | |
Pentyloxy | C-205.1 | |
Perchloryl | C-10.1, C-106.2 | |
Perimidinyl | B-2.11, B-5.11 | |
Perylenyl | A-21.1, A-24.2 | |
Phenacyl | C-318.1 | |
Phenacylidene | C-318.1 | |
Phenalenyl | A-21.1, A-24.2 | |
Phenanthridinyl | B-2.11, B-5.11 | |
Phenanthrolinyl | B-2.11, B-5.11 | |
Phenanthryl | A-24.2 | |
Phenanthrylene | A-24.4 | |
Phenarsazinyl | B-2.11, B-5.11 | |
Phenazinyl | B-2.11, B-5.11 | |
Phenethyl | A-13.3 | |
Phenetidino (o-, m-, or p-) | C-811.4 | |
Phenothiazinyl | B-2.11, B-5.11 | |
Phenoxathiinyl | B-2.11, B-5.11 | |
Phenoxazinyl | B-2.11, B-5.11 | |
Phenoxy | C-205.1 | |
Phenyl | A-13.1 | |
Phenylacetyl | C-12.7, C-404.1 | |
Phenylazo | C-912.3 | |
Phenylazoxy | C-913.1 | |
Phenylcarbrmoyl | C-431.2 | |
Phenylene | A-11.6 | |
Phenylenebisazo | C-912.5 | |
Phenylimino | C-815.3 | |
2-phenylpropanoyl, see Hydratropoyl |
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3-phenylpropenoyl, see Cinnamoyl |
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3-Phenylpropyl | A-61.2 | |
Phenylsulfamoyl | C-661.2 | |
Phenylsulfinyl | C-631.1 | |
Phenylsulfonyl | C-631.1 | |
Phenylsulfonylamino | C-641.7, C-641.8, C-823.1 | |
Phenylthio | C-514.1 | |
3-Phenylureido | C-971.2 | |
Phthalamoyl | (o-) | C-431.1, C-431.2 |
Phthalazinyl | B-2.11, B-5.11 | |
Phthalidyl | B-5.11, C-473.1 | |
Phthalidylidene | B-5.12, C-473.1 | |
Phthalimido | C-827.2 | |
Phthaloyl (preferred to 1,2-benzenedicarbonyl) |
(o-) |
C-404.1 |
Phytyl [for (E)-(7R,11R)-3,7,11,15-tetramethyl- 2-hexadecenyl] |
A-75.1 | |
Picenyl | A-21.1, A-24.2 | |
Picryl | C-202.2 | |
Pimeloyl (unsubstituted only) |
C-404.1 | |
Pinanyl | A-72.1, A-75.2 | |
Pinanylene | A-72.1, A-75.2 | |
Pinanylidene | A-72.1, A-75.2 | |
Piperazinyl | B-2.12, B-5.11 | |
Piperidino (1-position only) | B-2.12, B-5.11 | |
Piperidyl | B-2.12, B-5.11 | |
Piperdylidene | B-5.12 | |
Piperonyl | (cfC-411.1) | |
Piperonylidene | (cfC-411.1) | |
Piperonyloyl (preferred to 3,4-methylenedioxybenzoyl) |
C-411.1 | |
Pivaloyl (unsubstituted only) |
C-404.1 | |
Pleiadenyl | A-21.1, A-24.2 | |
Polythio | C-515.1 | |
Prolyl | C-421.1 | |
propanedioyl, see Malonyl |
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Propane-1,3-diyl-2-ylidene | A-4.5 | |
Propane-1,2,3-triyl | A-4.5 | |
propanoyl, see Propionyl |
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Propan-1-yl-3-ylidene | A-4.4 | |
propargyl, see 2-Propynyl |
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propenpyl, see Acryloyl |
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1-Propenyl | A-3.5 | |
2-propenyl, see Allyl |
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Propenylene | A-4.3 | |
Propioloyl (preferred to propynoyl) |
C-404.1 | |
Propionamido | C-823.1 | |
Propionyl (preferred to propanoyl) |
C-404.1 | |
Propionylamino | C-823.1 | |
Propionyloxy | C-463.3 | |
Propoxy | C-205.1 | |
Propyl | A-1.2 | |
Propylene | A-4.2 | |
Propylidene | A-4.1 | |
Propylidyne | A-4.1 | |
propynoyl, see Propioloyl |
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1-Propynyl | A-3.5 | |
2-Propynyl | A-3.5 | |
Protocatechuoyl (preferred to 3,4-dihydroxybenzoyl) |
C-411.1 | |
Pteridinyl | B-2.11, B-5.11 | |
Purinyl | B-2.11, B-5.11 | |
Pyranthrenyl | A-21.1, A-24.2 | |
Pyranyl | B-2.11, B-5.11 | |
Pyranylidene | B-2.11, B-5.12 | |
Pyrazinyl | B-2.11, B-5.11 | |
Pyrazolidinyl | B-2.12, B-5.11 | |
Pyrazolinyl | B-2.12, B-5.11 | |
Pyrazolyl | B-2.11, B-5.11 | |
Pyrenyl | A-21.1, A-24.2 | |
Pyridazinyl | B-2.11, B-5.11 | |
2-Pyridinecarbonyl | C-401.2, C-403.2 | |
3-pyridinecarbonyl, see Nicotinoyl |
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4-pyridinecarbonyl, see Isonicotinoyl |
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Pyridinio | C-82.1, C-85.1 | |
Pyridyl | B-2.11, B-5.11 | |
2-Pyridylcarbonyl | C-403.2 | |
Pyridyloxy | C-205.1 | |
Pyrimidinyl | B-2.11, B-5.11 | |
Pyrrolidinyl | B-2.12, B-5.11 | |
Pyrrolinyl | B-2.12, B-5.11 | |
Pyrrolyl | B-2.11, B-5.11 | |
Pyruvoyl | C-416.3 |
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