Molecular formula
C20H22N4O2
277 compounds have this formula on CompoundList.
- Molar mass
- 350.42g/mol
- Monoisotopic mass
- 350.1743Da
- Atoms
- 48
- Elements
- 4
- Rings plus double bonds
- 12
The formula C20H22N4O2 describes a molecule made of 20 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 × 2068.55%12.011 × 20 = 240.220 g/mol
- H Hydrogen × 226.33%1.008 × 22 = 22.176 g/mol
- N Nitrogen × 415.99%14.007 × 4 = 56.028 g/mol
- O Oxygen × 29.13%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C20H22N4O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 277 compounds
![1-(3,5-Dimethylphenyl)-N-[3-(1-hydroxyethyl)phenyl]-5-methyl-1H-1,2,3-triazole-4-carboxamide chemical structure, C20H22N4O2, CAS 1032227-57-8](/s/QMGBAZPKOFGHNB-UHFFFAOYSA-N.svg)
1-(3,5-Dimethylphenyl)-N-[3-(1-hydroxyethyl)phenyl]-5-methyl-1H-1,2,3-triazole-4-carboxamide
CAS 1032227-57-8C20H22N4O2
![1-(4-Ethylphenyl)-N-[3-(1-hydroxyethyl)phenyl]-5-methyl-1H-1,2,3-triazole-4-carboxamide chemical structure, C20H22N4O2, CAS 1032228-66-2](/s/RHAGSGQPFOUMKV-UHFFFAOYSA-N.svg)
1-(4-Ethylphenyl)-N-[3-(1-hydroxyethyl)phenyl]-5-methyl-1H-1,2,3-triazole-4-carboxamide
CAS 1032228-66-2C20H22N4O2
![N-Cyclopentyl-2-{2-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}acetamide chemical structure, C20H22N4O2, CAS 1260911-79-2](/s/VPPADWNULFWUSD-UHFFFAOYSA-N.svg)
N-Cyclopentyl-2-{2-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}acetamide
CAS 1260911-79-2C20H22N4O2
methanone chemical structure, C20H22N4O2, CAS 1401556-26-0](/s/BJXJNVNWGOCOBR-UHFFFAOYSA-N.svg)
[4-(2-Methoxyphenyl)piperazin-1-yl](2-methyl-1H-benzimidazol-6-yl)methanone
CAS 1401556-26-0C20H22N4O2
1-(2-(4,5-Dimethyl-6-oxopyrimidin-1(6H)-yl)ethyl)-3-(naphthalen-1-ylmethyl)urea
CAS 1396560-54-5C20H22N4O2
(3-Methoxy-2-methyl-2H-indazol-6-yl)(4-phenylpiperazin-1-yl)methanone
CAS 1421459-45-1C20H22N4O2
![2-[4-(4-Methoxy-2-methylbenzoyl)piperazin-1-yl]-1H-1,3-benzodiazole chemical structure, C20H22N4O2, CAS 1424350-00-4](/s/QZBHTMAJVPKOEQ-UHFFFAOYSA-N.svg)
2-[4-(4-Methoxy-2-methylbenzoyl)piperazin-1-yl]-1H-1,3-benzodiazole
CAS 1424350-00-4C20H22N4O2
N-(2-(5-Cyclopropyl-3-(pyridin-4-yl)-1H-pyrazol-1-yl)ethyl)-2,5-dimethylfuran-3-carboxamide
CAS 1797259-76-7C20H22N4O2
![2-[4-(2-Hydroxymethyl-piperazin-1-yl)-7-methyl-quinazolin-2-yl]-phenol chemical structure, C20H22N4O2, CAS 879274-91-6](/s/RRRMHHSYVLOTID-UHFFFAOYSA-N.svg)
2-[4-(2-Hydroxymethyl-piperazin-1-yl)-7-methyl-quinazolin-2-yl]-phenol
CAS 879274-91-6C20H22N4O2
![N-[4-[4-(Aziridine-1-carbonylamino)-3-methylphenyl]-2-methylphenyl]aziridine-1-carboxamide chemical structure, C20H22N4O2, CAS 3259-65-2](/s/FMDPSTITBZDRNU-UHFFFAOYSA-N.svg)
N-[4-[4-(Aziridine-1-carbonylamino)-3-methylphenyl]-2-methylphenyl]aziridine-1-carboxamide
CAS 3259-65-2C20H22N4O2
![1-(2-Methoxyphenyl)-4-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]piperazine chemical structure, C20H22N4O2, CAS 693815-86-0](/s/JHZNFBODDVLSDO-UHFFFAOYSA-N.svg)
1-(2-Methoxyphenyl)-4-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]piperazine
CAS 693815-86-0C20H22N4O2
![3-Piperidinecarboxamide, N-[2-methyl-4-[2-(2-methylphenyl)diazenyl]phenyl]-2-oxo- chemical structure, C20H22N4O2, CAS 363591-12-2](/s/UMJHRLZIZXQSHO-UHFFFAOYSA-N.svg)
3-Piperidinecarboxamide, N-[2-methyl-4-[2-(2-methylphenyl)diazenyl]phenyl]-2-oxo-
CAS 363591-12-2C20H22N4O2
![4-(4-Oxo-1,2,3-benzotriazin-3(4H)-yl)-N-[4-(propan-2-yl)phenyl]butanamide chemical structure, C20H22N4O2, CAS 881041-83-4](/s/MCDZYTQVNJMNMS-UHFFFAOYSA-N.svg)
4-(4-Oxo-1,2,3-benzotriazin-3(4H)-yl)-N-[4-(propan-2-yl)phenyl]butanamide
CAS 881041-83-4C20H22N4O2
![N-[4-(Dimethylamino)phenyl]-4-(4-oxoquinazolin-3(4H)-yl)butanamide chemical structure, C20H22N4O2, CAS 879581-28-9](/s/MFBNDMXZYFYAJI-UHFFFAOYSA-N.svg)
N-[4-(Dimethylamino)phenyl]-4-(4-oxoquinazolin-3(4H)-yl)butanamide
CAS 879581-28-9C20H22N4O2
![1-(4-tert-Butylphenyl)-3-[(4-oxo-3H-phthalazin-1-yl)methyl]urea chemical structure, C20H22N4O2, CAS 899985-28-5](/s/SGVKZKFVEHWIPR-UHFFFAOYSA-N.svg)
1-(4-tert-Butylphenyl)-3-[(4-oxo-3H-phthalazin-1-yl)methyl]urea
CAS 899985-28-5C20H22N4O2
![N'~1~,N'~2~-bis[(1E)-3-phenylpropylidene]ethanedihydrazide chemical structure, C20H22N4O2, CAS 6948-17-0](/s/QTODSEHFGCCUFW-YHARCJFQSA-N.svg)
N'~1~,N'~2~-bis[(1E)-3-phenylpropylidene]ethanedihydrazide
CAS 6948-17-0C20H22N4O2
N~1~,N~1~-Bis(4-aminophenyl)-2,5-dimethoxybenzene-1,4-diamine
CAS 106790-29-8C20H22N4O2
N-(2,6-Dimethylphenyl)-1-(2-ethoxyphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide
CAS 924819-29-4C20H22N4O2
![1-(3-Methoxyphenyl)-5-methyl-N-[4-(propan-2-yl)phenyl]-1H-1,2,3-triazole-4-carboxamide chemical structure, C20H22N4O2, CAS 924837-60-5](/s/WKRJKZHJOZTAIJ-UHFFFAOYSA-N.svg)
1-(3-Methoxyphenyl)-5-methyl-N-[4-(propan-2-yl)phenyl]-1H-1,2,3-triazole-4-carboxamide
CAS 924837-60-5C20H22N4O2
![N-(5-{6-Methoxyimidazo[1,2-b]pyridazin-2-yl}-2-methylphenyl)cyclopentanecarboxamide chemical structure, C20H22N4O2, CAS 946217-18-1](/s/PIBSDEATYULTQJ-UHFFFAOYSA-N.svg)
N-(5-{6-Methoxyimidazo[1,2-b]pyridazin-2-yl}-2-methylphenyl)cyclopentanecarboxamide
CAS 946217-18-1C20H22N4O2
![N-Cyclopentyl-2-(4-oxo-2-(p-tolyl)pyrazolo[1,5-a]pyrazin-5(4H)-yl)acetamide chemical structure, C20H22N4O2, CAS 941894-82-2](/s/WZGJZLZXWXXYGN-UHFFFAOYSA-N.svg)
N-Cyclopentyl-2-(4-oxo-2-(p-tolyl)pyrazolo[1,5-a]pyrazin-5(4H)-yl)acetamide
CAS 941894-82-2C20H22N4O2
5-Methyl-1-(2-methylphenyl)-N-(4-propoxyphenyl)-1H-1,2,3-triazole-4-carboxamide
CAS 950225-96-4C20H22N4O2
Ergoline-8-propanamide, alpha-cyano-2-formyl-6-methyl-, (8-beta)-
CAS 88133-26-0C20H22N4O2
N-(2-Diethylamino-4-oxo-4H-quinazolin-3-yl)-2-phenylacetamide
CAS 1086682-89-4C20H22N4O2
- 2-(Morpholin-4-yl)-6-[4-(propan-2-yl)phenyl]pyrido[4,3-d]pyrimidin-5(6H)-one1030461-79-0C20H22N4O2
- (4-((1H-Benzo[d]imidazol-2-yl)methyl)piperazin-1-yl)(3-methoxyphenyl)methanone1172009-35-6C20H22N4O2
- 3-(4-Oxo-1,2,3-benzotriazin-3(4H)-yl)-N-(4-phenylbutan-2-yl)propanamide1190282-23-5C20H22N4O2
- 1-(4-(tert-Butyl)phenyl)-3-(2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)urea1060246-02-7C20H22N4O2
- (4-(5-Isopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl)(quinolin-2-yl)methanone1211161-08-8C20H22N4O2
- 1-(4-(5-Cyclopropyl-1,3,4-oxadiazol-2-yl)piperidin-1-yl)-2-(1H-indol-1-yl)ethanone1210781-69-3C20H22N4O2
- N-((1-(Furan-2-ylmethyl)piperidin-4-yl)methyl)quinoxaline-2-carboxamide1209726-05-5C20H22N4O2
- N-(4-Methoxybenzyl)-6-(3,4,5-trimethyl-1H-pyrazol-1-yl)nicotinamide1251558-26-5C20H22N4O2
- 1-(4-Methoxyphenyl)-N-(4-phenylbutan-2-yl)-1H-1,2,3-triazole-4-carboxamide1226459-69-3C20H22N4O2
- N-[2-(1H-Indol-3-yl)ethyl]-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide1282142-45-3C20H22N4O2
- 2-(3-(Dimethylamino)-4-phenyl-1H-pyrazol-1-yl)-N-(4-methoxyphenyl)acetamide1286713-29-8C20H22N4O2
- N-[2-(1H-Indol-1-yl)ethyl]-2-(3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide1324071-73-9C20H22N4O2
- (5-Methylisoxazol-3-yl)(4-((2-phenyl-1H-imidazol-1-yl)methyl)piperidin-1-yl)methanone1351654-96-0C20H22N4O2
- 2-[(4-Benzylpiperazin-1-yl)methyl]-6-(furan-2-yl)pyridazin-3(2H)-one1351687-13-2C20H22N4O2
- 2-[3-(2-Methylpropyl)-4-oxo-3,4-dihydrophthalazin-1-yl]-N-(4-methylpyridin-2-yl)acetamide1435900-49-4C20H22N4O2
- 1-(3-((4,6-Dimethylpyrimidin-2-yl)oxy)pyrrolidin-1-yl)-2-(1H-indol-3-yl)ethanone2034474-70-7C20H22N4O2
- 1-(3-((4,6-Dimethylpyrimidin-2-yl)oxy)pyrrolidin-1-yl)-2-(1H-indol-1-yl)ethanone2034251-65-3C20H22N4O2
- 1-(2-Hydroxy-2-phenylethyl)-N-(4-isopropylphenyl)-1H-1,2,4-triazole-3-carboxamide2108825-60-9C20H22N4O2
- 2-(4-{[(6-Methylpyrimidin-4-yl)oxy]methyl}piperidine-1-carbonyl)indolizine2319638-03-2C20H22N4O2
- 4-Amino-5-(4-aminophenyl)-1-[3-(3-methylphenoxy)propyl]pyrimidin-2-one57278-27-0C20H22N4O2
- N-(2,3-Dimethylphenyl)-1-(4-ethoxyphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide866872-59-5C20H22N4O2
- 1-(4-Ethoxyphenyl)-N-(4-ethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide866872-66-4C20H22N4O2
- N-(4-Ethoxyphenyl)-1-(4-ethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide866872-89-1C20H22N4O2
- 4-(Diethylamino)benzoic acid 2-(1,2-dihydro-1-methyl-2-oxo-3H-indol-3-ylidene)hydrazide380204-73-9C20H22N4O2
- N-[(E)-{4-[2-(3-Ethyl-5-methylphenoxy)ethoxy]phenyl}methylidene]-4H-1,2,4-triazol-4-amine364739-37-7C20H22N4O2
- (E)-1-(1-Ethyl-3-methylpyrazol-4-yl)-3-[4-methoxy-3-(pyrazol-1-ylmethyl)phenyl]prop-2-en-1-one1005648-66-7C20H22N4O2
- N-(3,4-Dimethylphenyl)-1-(4-ethoxyphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide866896-34-6C20H22N4O2
- 2-(3,4-Dihydroisoquinolin-2(1H)-yl)-N-(4-methyl-5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl)acetamide919724-11-1C20H22N4O2
- N-Cyclohexyl-5-methyl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide923184-55-8C20H22N4O2
- N-Cyclopentyl-5-ethyl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxamide921576-49-0C20H22N4O2
- 2-Phenyl-5-propyl-7-(pyrrolidine-1-carbonyl)-2H-pyrazolo[4,3-c]pyridin-3(5H)-one923233-55-0C20H22N4O2
- (E)-1-(3-Butyl-2-oxo-2,3-dihydroquinazolin-4(1H)-ylidene)-3-(p-tolyl)urea941984-40-3C20H22N4O2
- (E)-1-Benzyl-3-(3-butyl-2-oxo-2,3-dihydroquinazolin-4(1H)-ylidene)urea941941-15-7C20H22N4O2
- (E)-1-(3-Isobutyl-2-oxo-2,3-dihydroquinazolin-4(1H)-ylidene)-3-(m-tolyl)urea899728-41-7C20H22N4O2
- (E)-1-(3-Isobutyl-2-oxo-2,3-dihydroquinazolin-4(1H)-ylidene)-3-(p-tolyl)urea899984-26-0C20H22N4O2
- Ethyl 7-[(E)-2-(dimethylamino)ethenyl]-2-methyl-3-phenylpyrazolo[1,5-a]pyrimidine-6-carboxylate1030447-84-7C20H22N4O2
- 4-Phenyl-N-[2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)ethyl]tetrahydro-2H-pyran-4-carboxamide1574492-69-5C20H22N4O2
- 2-{[4-(4-Methoxybenzoyl)piperazin-1-yl]methyl}-1H-1,3-benzodiazole1172477-25-6C20H22N4O2
- 1-(3,4-Dimethylphenyl)-N-(1-(4-methoxyphenyl)ethyl)-1H-1,2,3-triazole-4-carboxamide1326917-32-1C20H22N4O2
- 2-[3-(2-Methylpropyl)-4-oxo-3,4-dihydrophthalazin-1-yl]-N-(pyridin-3-ylmethyl)acetamide1435979-79-5C20H22N4O2
- 1-(Naphthalen-1-ylmethyl)-3-(1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl)urea1798042-46-2C20H22N4O2
- 2-((1-(3-(Dimethylamino)benzoyl)piperidin-4-yl)oxy)nicotinonitrile1797186-26-5C20H22N4O2
- N-{2-[5-Cyclopropyl-3-(pyridin-2-yl)-1H-pyrazol-1-yl]ethyl}-2,5-dimethylfuran-3-carboxamide1798028-38-2C20H22N4O2
- N-((1-(6-Methylpyridazin-3-yl)piperidin-4-yl)methyl)benzofuran-2-carboxamide1797124-44-7C20H22N4O2
- 3-(4-Methoxyphenyl)-N-{2-[2-(pyridin-2-yl)-1H-imidazol-1-yl]ethyl}propanamide2034505-68-3C20H22N4O2
- 4-(1H-Pyrrol-1-yl)-N-(1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-pyrazol-4-yl)benzamide1705864-05-6C20H22N4O2
- (3-((3-Cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)(1H-indol-5-yl)methanone1705075-82-6C20H22N4O2
- (1,3-Dimethyl-1H-pyrazol-5-yl)(4-(quinolin-8-yloxy)piperidin-1-yl)methanone2034243-30-4C20H22N4O2
- 3-(4-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl)-N-(6-methoxypyridin-3-yl)propanamide2034592-99-7C20H22N4O2
- 2-(1H-Benzo[d]imidazol-1-yl)-N-(pyridin-3-yl(tetrahydro-2H-pyran-4-yl)methyl)acetamide2034259-33-9C20H22N4O2
- N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-(cyclopentyloxy)-N-methylisonicotinamide2034358-73-9C20H22N4O2
- 3-Phenyl-1-(1-(pyridin-3-ylmethyl)piperidin-4-yl)imidazolidine-2,4-dione2034512-71-3C20H22N4O2
- 1-Cyclopropyl-3-[3-(2-oxoazetidin-1-yl)phenyl]-1-[1-(pyridin-3-yl)ethyl]urea1808829-49-3C20H22N4O2
- 4-(1H-Pyrrol-1-yl)-N-(1-((tetrahydro-2H-pyran-2-yl)methyl)-1H-pyrazol-4-yl)benzamide2034380-40-8C20H22N4O2
- N-Cyclopentyl-N-{2-[3-(pyridin-4-yl)-1H-pyrazol-1-yl]ethyl}furan-2-carboxamide2034419-37-7C20H22N4O2
- N-Cyclopentyl-N-{2-[3-(pyridin-4-yl)-1H-pyrazol-1-yl]ethyl}furan-3-carboxamide2034327-33-6C20H22N4O2
- N-Benzyl-6-(4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)hexanamide440330-82-5C20H22N4O2
- (4-((2,6-Dimethylpyrimidin-4-yl)oxy)piperidin-1-yl)(indolizin-2-yl)methanone2034497-92-0C20H22N4O2
- Ethyl 5-amino-1-benzyl-3-(p-tolylamino)-1H-pyrazole-4-carboxylate2034377-15-4C20H22N4O2
- 2-(3,5-Dimethylisoxazol-4-yl)-N-(2-(5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-2-yl)phenyl)acetamide2034567-78-5C20H22N4O2
- (3-((2,6-Dimethylpyrimidin-4-yl)oxy)piperidin-1-yl)(1H-indol-2-yl)methanone2034616-94-7C20H22N4O2
- (3-((2,6-Dimethylpyrimidin-4-yl)oxy)piperidin-1-yl)(1H-indol-6-yl)methanone2034472-81-4C20H22N4O2
- 5-Cyclopropyl-N-(2-(3,5-dimethyl-4-phenyl-1H-pyrazol-1-yl)ethyl)isoxazole-3-carboxamide2034505-92-3C20H22N4O2
- 4-(4-(((5,6-Dimethylpyrimidin-4-yl)oxy)methyl)piperidine-1-carbonyl)benzonitrile2310207-51-1C20H22N4O2
- 3-((2,3-Dimethylphenyl)amino)-6-(4-ethoxybenzyl)-1,2,4-triazin-5(4H)-one905764-99-0C20H22N4O2
- 3-((2,4-Dimethylphenyl)amino)-6-(4-ethoxybenzyl)-1,2,4-triazin-5(4H)-one905764-94-5C20H22N4O2
- 3-((2,5-Dimethylphenyl)amino)-6-(4-ethoxybenzyl)-1,2,4-triazin-5(4H)-one905764-92-3C20H22N4O2
- N-Diazoacetyl-L-phenylalanine-3-phenylpropylamide61715-45-5C20H22N4O2
- 2-(2-Methylbenzimidazol-1-yl)-N-(4-morpholin-4-ylphenyl)acetamide892676-51-6C20H22N4O2
- N-(2-Ethoxyphenyl)-1-(3-ethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide895643-40-0C20H22N4O2
- N-(1H-Indol-3-yl)-4-(2-methoxyphenyl)piperazine-1-carboxamide899736-40-4C20H22N4O2
- 7-(Azepane-1-carbonyl)-5-methyl-2-phenyl-2H-pyrazolo[4,3-c]pyridin-3(5H)-one921879-67-6C20H22N4O2
- 2-(3,4-Dihydroisoquinolin-2(1H)-yl)-N-(7-methyl-5-oxo-5,6,7,8-tetrahydroquinazolin-2-yl)acetamide932279-24-8C20H22N4O2
- 1-Phenyl-4-{[4-(pyridin-2-yl)piperazin-1-yl]carbonyl}pyrrolidin-2-one1010922-14-1C20H22N4O2
- (+)-Phenylahistin200925-27-5C20H22N4O2
- N-(1-Methyl-1H-indol-4-yl)-2-(3-oxo-3,5,6,7,8,9-hexahydro-2H-cyclohepta[c]pyridazin-2-yl)acetamide1282102-01-5C20H22N4O2
Frequently asked questions
What is the molar mass of C20H22N4O2?
The molar mass of C20H22N4O2 is 350.42 g/mol, calculated from standard atomic weights for 20 carbon atoms, 22 hydrogen atoms, 4 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 350.1743 Da.
How many compounds have the formula C20H22N4O2?
CompoundList lists 277 compounds with the molecular formula C20H22N4O2, including 1-(3,5-Dimethylphenyl)-N-[3-(1-hydroxyethyl)phenyl]-5-methyl-1H-1,2,3-triazole-4-carboxamide, 1-(4-Ethylphenyl)-N-[3-(1-hydroxyethyl)phenyl]-5-methyl-1H-1,2,3-triazole-4-carboxamide, N-Cyclopentyl-2-{2-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]-1H-pyrrol-1-yl}acetamide. 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 C20H22N4O2?
C20H22N4O2 has a degree of unsaturation of 12. 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.