Molecular formula
C19H22N4O2
354 compounds have this formula on CompoundList.
- Molar mass
- 338.41g/mol
- Monoisotopic mass
- 338.1743Da
- Atoms
- 47
- Elements
- 4
- Rings plus double bonds
- 11
The formula C19H22N4O2 describes a molecule made of 19 carbon atoms, 22 hydrogen atoms, 4 nitrogen atoms and 2 oxygen atoms. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 1967.44%12.011 × 19 = 228.209 g/mol
- H Hydrogen × 226.55%1.008 × 22 = 22.176 g/mol
- N Nitrogen × 416.56%14.007 × 4 = 56.028 g/mol
- O Oxygen × 29.46%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C19H22N4O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 201 to 300 of 354 compounds
2-(1H-Indol-1-yl)-N-(1-((tetrahydro-2H-pyran-2-yl)methyl)-1H-pyrazol-4-yl)acetamide
CAS 2034256-01-2C19H22N4O2
![N-[(Pyridin-2-yl)methyl]-3-(pyridin-2-yloxy)-8-azabicyclo[3.2.1]octane-8-carboxamide chemical structure, C19H22N4O2, CAS 2108482-00-2](/s/ZFUDFPZKOIBYFL-UHFFFAOYSA-N.svg)
N-[(Pyridin-2-yl)methyl]-3-(pyridin-2-yloxy)-8-azabicyclo[3.2.1]octane-8-carboxamide
CAS 2108482-00-2C19H22N4O2
(4-(6-Cyclopropylpyridazin-3-yl)piperazin-1-yl)(2-methoxyphenyl)methanone
CAS 2034233-41-3C19H22N4O2
N-(2-(3,5-Dimethyl-4-phenyl-1H-pyrazol-1-yl)ethyl)-3,5-dimethylisoxazole-4-carboxamide
CAS 2034551-62-5C19H22N4O2
1-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)-2-(furan-2-yl)ethyl)-3-(o-tolyl)urea
CAS 2034565-86-9C19H22N4O2
N-((6-Cyclopropylpyrimidin-4-yl)methyl)-4-morpholinobenzamide
CAS 2189498-26-6C19H22N4O2
1-Cyclohexyl-N-(2-oxo-1-phenylazetidin-3-yl)pyrazole-3-carboxamide
CAS 1947082-90-7C19H22N4O2
![1-Phenyl-4-[3-(1H-1,2,4-triazol-1-yl)-8-azabicyclo[3.2.1]octan-8-yl]butane-1,4-dione chemical structure, C19H22N4O2, CAS 2309775-05-9](/s/IVGKBAIQIROVSN-UHFFFAOYSA-N.svg)
1-Phenyl-4-[3-(1H-1,2,4-triazol-1-yl)-8-azabicyclo[3.2.1]octan-8-yl]butane-1,4-dione
CAS 2309775-05-9C19H22N4O2
![N-(4-((1R,5S)-3-(1H-Pyrazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carbonyl)phenyl)acetamide chemical structure, C19H22N4O2, CAS 2320208-75-9](/s/HQMLLAMUIKSHRY-UHFFFAOYSA-N.svg)
N-(4-((1R,5S)-3-(1H-Pyrazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carbonyl)phenyl)acetamide
CAS 2320208-75-9C19H22N4O2
![N-{4-[3-(1H-imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carbonyl]phenyl}acetamide chemical structure, C19H22N4O2, CAS 2320456-58-2](/s/AELCWICNSRGQAT-UHFFFAOYSA-N.svg)
N-{4-[3-(1H-imidazol-1-yl)-8-azabicyclo[3.2.1]octane-8-carbonyl]phenyl}acetamide
CAS 2320456-58-2C19H22N4O2
![4-Cyclopropyl-6-{[1-(pyridine-2-carbonyl)piperidin-4-yl]methoxy}pyrimidine chemical structure, C19H22N4O2, CAS 2320144-69-0](/s/YBOPXPNOWLXSAF-UHFFFAOYSA-N.svg)
4-Cyclopropyl-6-{[1-(pyridine-2-carbonyl)piperidin-4-yl]methoxy}pyrimidine
CAS 2320144-69-0C19H22N4O2
![4-Cyclopropyl-6-{[1-(pyridine-4-carbonyl)piperidin-4-yl]methoxy}pyrimidine chemical structure, C19H22N4O2, CAS 2309711-10-0](/s/CVQQKCMXOAINSE-UHFFFAOYSA-N.svg)
4-Cyclopropyl-6-{[1-(pyridine-4-carbonyl)piperidin-4-yl]methoxy}pyrimidine
CAS 2309711-10-0C19H22N4O2
![4-Cyclopropyl-6-{[1-(pyridine-3-carbonyl)piperidin-4-yl]methoxy}pyrimidine chemical structure, C19H22N4O2, CAS 2309553-55-5](/s/ANBWWJRFSQLNCW-UHFFFAOYSA-N.svg)
4-Cyclopropyl-6-{[1-(pyridine-3-carbonyl)piperidin-4-yl]methoxy}pyrimidine
CAS 2309553-55-5C19H22N4O2
2-(4-Benzoylpiperazin-1-yl)-5,6,7,8-tetrahydro-3H-quinazolin-4-one
CAS 885884-05-9C19H22N4O2
(Z)-N-(1-(4-Methyl-6-oxo-1,6-dihydropyrimidin-2-yl)piperidin-4-yl)-3-phenylacrylamide
CAS 1904620-90-1C19H22N4O2
N-(2-(1H-Pyrazol-1-yl)benzyl)-1-acryloylpiperidine-4-carboxamide
CAS 2361901-15-5C19H22N4O2
![N-[(1-Phenyl-1H-imidazol-2-yl)methyl]-1-(prop-2-enoyl)piperidine-4-carboxamide chemical structure, C19H22N4O2, CAS 2361894-27-9](/s/VWVINBQYOLIDGF-UHFFFAOYSA-N.svg)
N-[(1-Phenyl-1H-imidazol-2-yl)methyl]-1-(prop-2-enoyl)piperidine-4-carboxamide
CAS 2361894-27-9C19H22N4O2
![N-[(1-Phenyl-1H-pyrazol-4-yl)methyl]-1-(prop-2-enoyl)piperidine-4-carboxamide chemical structure, C19H22N4O2, CAS 2361752-77-2](/s/IQURQZXMPNHQBB-UHFFFAOYSA-N.svg)
N-[(1-Phenyl-1H-pyrazol-4-yl)methyl]-1-(prop-2-enoyl)piperidine-4-carboxamide
CAS 2361752-77-2C19H22N4O2
![(2E)-2-[[(1,5-Dimethyl-3-oxo-2-phenylpyrazol-4-yl)amino]methylidene]-4,4-dimethyl-3-oxopentanenitrile chemical structure, C19H22N4O2, CAS 1020252-20-3](/s/UNYZFCCPTZWCMZ-WYMLVPIESA-N.svg)
(2E)-2-[[(1,5-Dimethyl-3-oxo-2-phenylpyrazol-4-yl)amino]methylidene]-4,4-dimethyl-3-oxopentanenitrile
CAS 1020252-20-3C19H22N4O2
![6-Ethyl-1,3-dimethyl-5-(phenethylamino)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione chemical structure, C19H22N4O2, CAS 942008-07-3](/s/NMVKEXZMBAHDNF-UHFFFAOYSA-N.svg)
6-Ethyl-1,3-dimethyl-5-(phenethylamino)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione
CAS 942008-07-3C19H22N4O2
![(E)-2-Cyano-N-cyclopentyl-3-[2,5-dimethyl-1-(5-methyl-1,2-oxazol-3-yl)pyrrol-3-yl]prop-2-enamide chemical structure, C19H22N4O2, CAS 1424660-72-9](/s/MVPADWJWYZXJAU-MHWRWJLKSA-N.svg)
(E)-2-Cyano-N-cyclopentyl-3-[2,5-dimethyl-1-(5-methyl-1,2-oxazol-3-yl)pyrrol-3-yl]prop-2-enamide
CAS 1424660-72-9C19H22N4O2
![1-Piperidineacetamide, 4-hydroxy-N-[4-(2-phenyldiazenyl)phenyl]- chemical structure, C19H22N4O2, CAS 1111539-68-4](/s/LPHGOHMFSQKHIA-UHFFFAOYSA-N.svg)
1-Piperidineacetamide, 4-hydroxy-N-[4-(2-phenyldiazenyl)phenyl]-
CAS 1111539-68-4C19H22N4O2
![N-(3-Methoxypropyl)-1,3-dimethyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide chemical structure, C19H22N4O2, CAS 1324097-02-0](/s/FOOCDGNKBGHOPE-UHFFFAOYSA-N.svg)
N-(3-Methoxypropyl)-1,3-dimethyl-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxamide
CAS 1324097-02-0C19H22N4O2
![N-[3-Methyl-1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butyl]-2-phenoxyacetamide chemical structure, C19H22N4O2, CAS 1081124-10-8](/s/HZQOOOFYUJHGMV-UHFFFAOYSA-N.svg)
N-[3-Methyl-1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)butyl]-2-phenoxyacetamide
CAS 1081124-10-8C19H22N4O2
- 2-(4-Methoxyphenyl)-N-[2-methyl-1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)propyl]acetamide1040710-37-9C19H22N4O2
- 4-Morpholineacetamide, 2-methyl-N-[4-(2-phenyldiazenyl)phenyl]-1223866-63-4C19H22N4O2
- 7-Prop-2-enoxy-4-[2-(propylamino)pyrimidin-5-yl]-3,4-dihydro-1H-quinolin-2-one1269288-60-9C19H22N4O2
- 4-Morpholineacetamide, 3-methyl-N-[4-(2-phenyldiazenyl)phenyl]-1259227-40-1C19H22N4O2
- 4-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-N-(2-methoxyphenethyl)butanamide1351687-63-2C19H22N4O2
- Urea, N-(2-hydroxycyclohexyl)-N'-[4-(2-phenyldiazenyl)phenyl]-1390836-28-8C19H22N4O2
- N-(1-Cyanocycloheptyl)-2-(8-methyl-4-oxo-3,4-dihydroquinazolin-3-yl)acetamide1388397-46-3C19H22N4O2
- [(S)-1-(3-Phenyl-3H-imidazo[4,5-b]pyridin-2-yl)ethyl]carbamic acid tertbutyl ester1393176-15-2C19H22N4O2
- N-(4-Phenylbutan-2-yl)-1-(pyrazine-2-carbonyl)azetidine-3-carboxamide1396793-50-2C19H22N4O2
- 3-(2-Ethoxyphenyl)-1-ethyl-1-(imidazo[1,2-a]pyridin-3-ylmethyl)urea1448044-60-7C19H22N4O2
- Acetamide, 2-[(1-cyclopropyl-2-hydroxyethyl)amino]-N-[4-(2-phenyldiazenyl)phenyl]-1798428-74-6C19H22N4O2
- 1-(3,4-Dimethylphenyl)-N-[(6-methylpyrimidin-4-yl)methyl]-5-oxopyrrolidine-3-carboxamide2176069-33-1C19H22N4O2
- N-[1-(4-Phenyloxane-4-carbonyl)azetidin-3-yl]pyridazin-3-amine2097867-17-7C19H22N4O2
- N-[1-(4-Phenyloxane-4-carbonyl)azetidin-3-yl]pyrimidin-4-amine2097883-57-1C19H22N4O2
- 6-Methoxy-N-[4-(1H-pyrazol-1-yl)cyclohexyl]-1H-indole-2-carboxamide2097897-30-6C19H22N4O2
- 2-Cyano-3-(5-cyano-1,2-dimethyl-1H-pyrrol-3-yl)-N-(octahydro-1-benzofuran-4-yl)prop-2-enamide1808417-81-3C19H22N4O2
- 2-Cyclopentyl-9-[2-(3-methoxyphenyl)ethyl]-3,9-dihydro-6H-purin-6-one834894-16-5C19H22N4O2
- N-[[(2S,3R)-2-(1-Benzylpyrazol-4-yl)-1-methyl-5-oxopyrrolidin-3-yl]methyl]prop-2-enamide2305151-40-8C19H22N4O2
- N-(1-Cyclopropylbenzimidazol-2-yl)-1-prop-2-enoylpiperidine-4-carboxamide2361910-99-6C19H22N4O2
- N-[4-[2-(3-Methylimidazol-4-yl)piperidine-1-carbonyl]phenyl]prop-2-enamide2197571-65-4C19H22N4O2
- 1-Benzyl-6-({5H,6H,8H-imidazo[2,1-c][1,4]oxazin-3-yl}methyl)-1,6-diazaspiro[3.3]heptan-2-one2411314-57-1C19H22N4O2
- 5-({4-[(5-Methoxypyrimidin-2-yl)oxy]piperidin-1-yl}methyl)-1H-indole2549012-58-8C19H22N4O2
- 9-Amino-N-(2-(dimethylamino)ethyl)-5-methyl-4-acridinecarboxamide89459-52-9C19H22N4O2
- 9H-Purine-6-propanoic acid, 9-(phenylmethyl)-, butyl ester666824-45-9C19H22N4O2
- 6-[2-(Benzyloxy)ethyl]-9-(oxan-2-yl)-9H-purine920503-54-4C19H22N4O2
- (E)-1-(4-(6-Methoxy-2-methylpyrimidin-4-yl)piperazin-1-yl)-3-phenylprop-2-en-1-one1021090-52-7C19H22N4O2
- N,N-Diethyl-2-{4-[5-(pyridin-3-yl)-1,2,4-oxadiazol-3-yl]phenoxy}ethan-1-amine41454-72-2C19H22N4O2
- 2-{2,5-Dimethylpyrazolo[1,5-a]pyrimidin-7-yl}-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline1377955-98-0C19H22N4O2
- Butanamide, 2-(acetylamino)-3-methyl-N-[4-(2-phenyldiazenyl)phenyl]-95317-00-3C19H22N4O2
- Urea, N-(4-hydroxycyclohexyl)-N'-[4-(2-phenyldiazenyl)phenyl]-1390900-42-1C19H22N4O2
- Acetamide, 2-[cyclopropyl(2-hydroxyethyl)amino]-N-[4-(2-phenyldiazenyl)phenyl]-1390966-51-4C19H22N4O2
- 1,3-Dihydro-N-[6-(4-piperidinyloxy)-3-pyridinyl]-2H-isoindole-2-carboxamide1375746-04-5C19H22N4O2
- 1-(3-((2-Oxopiperidin-1-yl)methyl)phenyl)-3-(pyridin-2-ylmethyl)urea1385375-13-2C19H22N4O2
- 5-Isopropoxy-3-(2-(3-methoxyazetidin-1-yl)pyridin-4-yl)-1H-indazole1627191-97-2C19H22N4O2
- 4-(4-(5-Propoxy-1H-indazol-3-yl)pyridin-2-yl)morpholine1627193-19-4C19H22N4O2
- 1-{1-[(4-Methoxypyridin-2-yl)methyl]piperidin-4-yl}-1,3-dihydro-2H-benzimidazol-2-one2061311-38-2C19H22N4O2
- tert-Butyl (1-(6-phenylimidazo[1,2-b]pyridazin-7-yl)ethyl)carbamate1894229-92-5C19H22N4O2
- Ethyl 4-amino-3-isopropyl-1-(m-tolyl)-1H-pyrazolo[3,4-b]pyridine-6-carboxylate2093978-75-5C19H22N4O2
- 2-Amino-4-(1-cyclopentyl-3-methyl-1H-pyrazol-5-yl)-5-oxo-5,6,7,8-tetrahydro-4H-chromen-3-yl cyanide1855889-42-7C19H22N4O2
- 2-Amino-4-(3-cyclopropyl-1-methyl-1H-pyrazol-4-yl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile1855888-70-8C19H22N4O2
- 2-Amino-4-(3-cyclopropyl-1-methyl-1H-pyrazol-5-yl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile1855899-02-3C19H22N4O2
- 6-(3,5-Dimethylbenzyl)-1-(tetrahydro-2H-pyran-4-yl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one1189767-04-1C19H22N4O2
- 2-{[1-(Pyridine-4-carbonyl)piperidin-4-yl]methyl}-2H,3H,5H,6H,7H-cyclopenta[c]pyridazin-3-one2379987-30-9C19H22N4O2
- 4-(6-Oxo-3-phenyl-1,6-dihydropyridazin-1-yl)-N-(prop-2-en-1-yl)piperidine-1-carboxamide2379975-27-4C19H22N4O2
- 6-Methoxy-2-[3-(1-methyl-1H-pyrazol-4-yl)piperidine-1-carbonyl]-1H-indole2320537-91-3C19H22N4O2
- 3-Cyclopropyl-6-{[1-(pyridine-3-carbonyl)piperidin-4-yl]methoxy}pyridazine2320923-46-2C19H22N4O2
- 1-(3,4-Dimethylphenyl)-3-{[2-(2-oxopyrrolidin-1-yl)pyridin-4-yl]methyl}urea2309589-72-6C19H22N4O2
- 3-Cyclopropyl-6-{[1-(pyridine-4-carbonyl)piperidin-4-yl]methoxy}pyridazine2310157-40-3C19H22N4O2
- 3-Oxo-N-(3-phenylpropyl)-4-(pyridin-3-yl)piperazine-1-carboxamide2320417-28-3C19H22N4O2
- 6-Methoxy-2-[4-(1-methyl-1H-imidazol-5-yl)piperidine-1-carbonyl]-1H-indole2320468-45-7C19H22N4O2
- 3,3-Dimethyl-4-[1-(1,7-naphthyridine-8-carbonyl)piperidin-4-yl]azetidin-2-one2261253-28-3C19H22N4O2
- 3-[3-(But-3-yn-1-yl)-3H-diazirin-3-yl]-N-[(2R)-1-hydroxy-3-(1H-indol-3-yl)propan-2-yl]propanamide2453227-69-3C19H22N4O2
- 3-[3-(But-3-yn-1-yl)-3H-diazirin-3-yl]-N-[(2S)-1-hydroxy-3-(1H-indol-3-yl)propan-2-yl]propanamide2453227-70-6C19H22N4O2
- 3-({1-[(5-Methyl-1,2-oxazol-4-yl)methyl]piperidin-4-yl}methyl)-3,4-dihydroquinazolin-4-one2380170-21-6C19H22N4O2
- 3-(3,5-Dimethyl-1,2-oxazol-4-yl)-1-[3-(2-methyl-1H-1,3-benzodiazol-1-yl)azetidin-1-yl]propan-1-one2380170-78-3C19H22N4O2
- 4-[5-(3-Methoxybenzoyl)-octahydropyrrolo[3,4-c]pyrrol-2-yl]-6-methylpyrimidine2380171-47-9C19H22N4O2
- 3-{3-[(Dimethylamino)methyl]-1,2-benzoxazol-5-yl}-1-(2-phenylethyl)urea2415565-33-0C19H22N4O2
- N-(1-Cyanocyclobutyl)-N-methyl-4-oxo-4-(3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)butanamide2649085-93-6C19H22N4O2
- N-(1-Cyano-2,2-dimethylcyclopropyl)-4-oxo-4-(3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)butanamide2649064-17-3C19H22N4O2
- N-[4-(1H-Imidazol-1-yl)-3-methylphenyl]-1-(prop-2-enoyl)piperidine-4-carboxamide2361883-38-5C19H22N4O2
- N-[1-(2-Methylphenyl)-1H-pyrazol-5-yl]-1-(prop-2-enoyl)piperidine-4-carboxamide2361822-66-2C19H22N4O2
- N-{4-[3-(4-Methyl-1H-pyrazol-1-yl)piperidine-1-carbonyl]phenyl}prop-2-enamide2361809-53-0C19H22N4O2
- N-[4-(Morpholin-4-yl)phenyl]-5,6,7,8-tetrahydroquinazoline-4-carboxamide2415599-37-8C19H22N4O2
- 4-Cyclopropyl-6-[4-(4-methoxyphenyl)piperazine-1-carbonyl]pyrimidine2415540-04-2C19H22N4O2
- 2-({1-[(5-Cyclopropyl-1,2-oxazol-3-yl)methyl]piperidin-4-yl}methoxy)pyridine-4-carbonitrile2415602-23-0C19H22N4O2
- 3-{[5-(1-Methyl-1H-pyrazol-5-yl)furan-2-yl]methyl}-1-(3-phenylpropyl)urea2415628-55-4C19H22N4O2
- N-(5-Methyl-1-phenyl-1H-pyrazol-4-yl)-1-(prop-2-enoyl)piperidine-4-carboxamide2411218-69-2C19H22N4O2
- 2-tert-Butyl-N-(4-methoxy-2-methylphenyl)imidazo[1,2-b]pyridazine-6-carboxamide2549044-49-5C19H22N4O2
- 2-tert-Butyl-N-(2-ethoxyphenyl)imidazo[1,2-b]pyridazine-6-carboxamide2549042-95-5C19H22N4O2
- 2-tert-Butyl-N-[(2-methoxyphenyl)methyl]imidazo[1,2-b]pyridazine-6-carboxamide2549027-89-4C19H22N4O2
- 2-tert-Butyl-N-(4-ethoxyphenyl)imidazo[1,2-b]pyridazine-6-carboxamide2549034-81-1C19H22N4O2
- 1-(1-(1,4-Dimethyl-1H-pyrrole-3-carbonyl)piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one2637078-39-6C19H22N4O2
- 1,1-Dimethylethyl 3-[[4-(4-cyanophenyl)-1H-pyrazol-1-yl]methyl]-1-azetidinecarboxylate2590559-43-4C19H22N4O2
- 3-{4-[(2,5-Dimethoxyphenyl)methyl]piperazin-1-yl}pyridine-2-carbonitrile2877656-90-9C19H22N4O2
- 4-(2-Cyclopropylpyrimidin-4-yl)-1-[(3-methoxyphenyl)methyl]piperazin-2-one2877645-64-0C19H22N4O2
- N-Methyl-N-{2-oxo-2-[4-(quinolin-4-yl)piperazin-1-yl]ethyl}prop-2-enamide2201937-53-1C19H22N4O2
Frequently asked questions
What is the molar mass of C19H22N4O2?
The molar mass of C19H22N4O2 is 338.41 g/mol, calculated from standard atomic weights for 19 carbon atoms, 22 hydrogen atoms, 4 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 338.1743 Da.
How many compounds have the formula C19H22N4O2?
CompoundList lists 354 compounds with the molecular formula C19H22N4O2, including 2-(1H-Indol-1-yl)-N-(1-((tetrahydro-2H-pyran-2-yl)methyl)-1H-pyrazol-4-yl)acetamide, N-[(Pyridin-2-yl)methyl]-3-(pyridin-2-yloxy)-8-azabicyclo[3.2.1]octane-8-carboxamide, (4-(6-Cyclopropylpyridazin-3-yl)piperazin-1-yl)(2-methoxyphenyl)methanone. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of C19H22N4O2?
C19H22N4O2 has a degree of unsaturation of 11. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.