Molecular formula
C22H23N3O4S
216 compounds have this formula on CompoundList.
- Molar mass
- 425.50g/mol
- Monoisotopic mass
- 425.1409Da
- Atoms
- 53
- Elements
- 5
- Rings plus double bonds
- 13
The formula C22H23N3O4S describes a molecule made of 22 carbon atoms, 23 hydrogen atoms, 3 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. 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 × 2262.10%12.011 × 22 = 264.242 g/mol
- H Hydrogen × 235.45%1.008 × 23 = 23.184 g/mol
- N Nitrogen × 39.88%14.007 × 3 = 42.021 g/mol
- O Oxygen × 415.04%15.999 × 4 = 63.996 g/mol
- S Sulfur × 17.53%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C22H23N3O4S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 216 compounds
Emd 53998
CAS 120223-04-3C22H23N3O4S
EMD 57439
CAS 148714-88-9C22H23N3O4S
2-(3,4-Dimethoxyphenyl)-3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-1,3-thiazolidin-4-one
CAS 302549-04-8C22H23N3O4S
![N-(2-(2,3-Dimethylphenyl)-5-oxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-2,3-dimethoxybenzamide chemical structure, C22H23N3O4S, CAS 958976-80-2](/s/XUOYDNCHZBPNIY-UHFFFAOYSA-N.svg)
N-(2-(2,3-Dimethylphenyl)-5-oxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-2,3-dimethoxybenzamide
CAS 958976-80-2C22H23N3O4S
![N-[2-(2,3-Dimethylphenyl)-5,5-dioxido-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl]-2-(4-methoxyphenyl)acetamide chemical structure, C22H23N3O4S, CAS 450339-07-8](/s/CANJOVBGDFUKTM-UHFFFAOYSA-N.svg)
N-[2-(2,3-Dimethylphenyl)-5,5-dioxido-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl]-2-(4-methoxyphenyl)acetamide
CAS 450339-07-8C22H23N3O4S
2-((1-(2-Oxo-2-(pyrrolidin-1-yl)ethyl)-1H-indol-3-yl)sulfonyl)-N-phenylacetamide
CAS 878055-82-4C22H23N3O4S
N-(4-Methoxyphenyl)-1-(quinolin-8-ylsulfonyl)piperidine-4-carboxamide
CAS 909856-86-6C22H23N3O4S
![2-[2-Methoxy-4-[[(3-methyl-3H-benzothiazol-2-ylidene)hydrazono]methyl]phenoxy]ethyl methacrylate chemical structure, C22H23N3O4S, CAS 47660-35-5](/s/RNPYQIUMSQHJTO-UHFFFAOYSA-N.svg)
2-[2-Methoxy-4-[[(3-methyl-3H-benzothiazol-2-ylidene)hydrazono]methyl]phenoxy]ethyl methacrylate
CAS 47660-35-5C22H23N3O4S
1-(2-Phenyl-4-tosyloxazol-5-yl)piperidine-4-carboxamide
CAS 823829-00-1C22H23N3O4S
![N-[2-Methoxy-4-(3-methylbutanoylcarbamothioylamino)phenyl]-1-benzofuran-2-carboxamide chemical structure, C22H23N3O4S, CAS 429638-33-5](/s/ZCARGJRRNFMTCZ-UHFFFAOYSA-N.svg)
N-[2-Methoxy-4-(3-methylbutanoylcarbamothioylamino)phenyl]-1-benzofuran-2-carboxamide
CAS 429638-33-5C22H23N3O4S
![4-Methoxy-N'-methyl-N'-[4-methyl-3-(methylsulfonyl)-6-phenyl-2-pyridinyl]benzenecarbohydrazide chemical structure, C22H23N3O4S, CAS 303986-72-3](/s/ZMVODFSBYRYYEM-UHFFFAOYSA-N.svg)
4-Methoxy-N'-methyl-N'-[4-methyl-3-(methylsulfonyl)-6-phenyl-2-pyridinyl]benzenecarbohydrazide
CAS 303986-72-3C22H23N3O4S
![[2-[2-(2-Methylanilino)-2-oxoethyl]-1,3-thiazol-4-yl]methyl 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylate chemical structure, C22H23N3O4S, CAS 874976-93-9](/s/LWFFQYRNEDSXBD-UHFFFAOYSA-N.svg)
[2-[2-(2-Methylanilino)-2-oxoethyl]-1,3-thiazol-4-yl]methyl 4-acetyl-3,5-dimethyl-1H-pyrrole-2-carboxylate
CAS 874976-93-9C22H23N3O4S
![3-Methyl-1-phenyl-4-(3,4,5-trimethoxyphenyl)-4,8-dihydro-1H-pyrazolo[3,4-e][1,4]thiazepin-7(6H)-one chemical structure, C22H23N3O4S, CAS 693232-83-6](/s/DKFPBRIHJBERSA-UHFFFAOYSA-N.svg)
3-Methyl-1-phenyl-4-(3,4,5-trimethoxyphenyl)-4,8-dihydro-1H-pyrazolo[3,4-e][1,4]thiazepin-7(6H)-one
CAS 693232-83-6C22H23N3O4S
N-(Furan-2-ylmethyl)-4-(4-phenylpiperazine-1-carbonyl)benzenesulfonamide
CAS 746609-42-7C22H23N3O4S
3-(4-Methoxyphenyl)-2-(1-morpholin-4-yl-1-oxopropan-2-yl)sulfanylquinazolin-4-one
CAS 833441-87-5C22H23N3O4S
5-Methyl-3-phenyl-N-(3-piperidin-1-ylsulfonylphenyl)-1,2-oxazole-4-carboxamide
CAS 805300-83-8C22H23N3O4S
4-Methoxy-N-(4-(2-((2-methoxyphenethyl)amino)-2-oxoethyl)thiazol-2-yl)benzamide
CAS 941943-28-8C22H23N3O4S
4-Methoxy-N-(4-(2-((3-methoxyphenethyl)amino)-2-oxoethyl)thiazol-2-yl)benzamide
CAS 941947-43-9C22H23N3O4S
3,5-Dimethoxy-N-(4-(2-oxo-2-((1-phenylethyl)amino)ethyl)thiazol-2-yl)benzamide
CAS 941947-47-3C22H23N3O4S
3,5-Dimethoxy-N-(4-(2-oxo-2-(phenethylamino)ethyl)thiazol-2-yl)benzamide
CAS 941898-85-7C22H23N3O4S
2-(4-Methoxy-N-(4-methylphenyl)sulfonylanilino)-N-(pyridin-4-ylmethyl)acetamide
CAS 331639-01-1C22H23N3O4S
Cambridge id 6764494
CAS 431939-27-4C22H23N3O4S
![N~2~-[(4-methoxyphenyl)sulfonyl]-N~2~-(4-methylphenyl)-N-(pyridin-2-ylmethyl)glycinamide chemical structure, C22H23N3O4S, CAS 431910-56-4](/s/KSMRVFYWOXNFSK-UHFFFAOYSA-N.svg)
N~2~-[(4-methoxyphenyl)sulfonyl]-N~2~-(4-methylphenyl)-N-(pyridin-2-ylmethyl)glycinamide
CAS 431910-56-4C22H23N3O4S
![2-[4-(2,5-Dioxopyrrolidin-1-yl)benzamido]-N,6-dimethyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide chemical structure, C22H23N3O4S, CAS 892978-51-7](/s/DIZGMOBGBJNOHJ-UHFFFAOYSA-N.svg)
2-[4-(2,5-Dioxopyrrolidin-1-yl)benzamido]-N,6-dimethyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide
CAS 892978-51-7C22H23N3O4S
- 2-((1-(Furan-2-ylmethyl)-2-oxo-2,5,6,7-tetrahydro-1H-cyclopenta[d]pyrimidin-4-yl)thio)-N-(2-methoxy-5-methylphenyl)acetamide946271-04-1C22H23N3O4S
- 2-((4-(4-Ethoxyphenyl)-3-oxo-3,4-dihydropyrazin-2-yl)thio)-N-(3-methoxybenzyl)acetamide900007-42-3C22H23N3O4S
- 2-((5-Ethyl-4-hydroxy-6-oxo-1-(o-tolyl)-1,6-dihydropyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide373370-01-5C22H23N3O4S
- 2-((3-(Benzo[d][1,3]dioxol-5-ylmethyl)-4-oxo-3,4-dihydroquinazolin-2-yl)thio)-N,N-diethylacetamide451464-25-8C22H23N3O4S
- N-(2-(4-Methoxyphenyl)-5,5-dioxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-2-phenylbutanamide450338-21-3C22H23N3O4S
- N-(2-(2,3-Dimethylphenyl)-5,5-dioxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-2-phenoxypropanamide450339-13-6C22H23N3O4S
- N-[2-(2,3-Dimethylphenyl)-5-oxo-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]-2,6-dimethoxybenzamide958717-36-7C22H23N3O4S
- 4-Isopropoxy-N-(2-(4-methoxyphenyl)-5-oxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)benzamide958709-77-8C22H23N3O4S
- 4-Isopropoxy-N-[2-(2-methylphenyl)-5,5-dioxido-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl]benzamide449785-87-9C22H23N3O4S
- 3,4,5-Trimethoxy-N-[2-(2-methylphenyl)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]benzamide361172-31-8C22H23N3O4S
- N-[2-(2,3-Dimethylphenyl)-5-oxo-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]-2,4-dimethoxybenzamide1019103-51-5C22H23N3O4S
- N-(2-(2,3-Dimethylphenyl)-5,5-dioxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-2-ethoxybenzamide450338-75-7C22H23N3O4S
- 3,4,5-Trimethoxy-N-[2-(4-methylphenyl)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]benzamide361172-32-9C22H23N3O4S
- N-[2-(2,3-Dimethylphenyl)-5,5-dioxo-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]-4-ethoxybenzamide450338-76-8C22H23N3O4S
- Methyl [4-({2-[(2-ethoxyphenyl)amino]-2-oxoethyl}sulfanyl)-1H-1,5-benzodiazepin-2-yl]acetate1251694-96-8C22H23N3O4S
- Methyl 4-(2-(isopropylthio)-4,6-dioxo-3,4,5,6,7,8,9,10-octahydropyrimido[4,5-b]quinolin-5-yl)benzoate627046-44-0C22H23N3O4S
- N-(2-(2,3-Dimethylphenyl)-5-oxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3,4-dimethoxybenzamide958612-01-6C22H23N3O4S
- 1-[3-(Benzenesulfonyl)-6-methoxyquinolin-4-yl]piperidine-4-carboxamide866811-77-0C22H23N3O4S
- N-(2-(2,3-Dimethylphenyl)-5-oxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)-3,5-dimethoxybenzamide1007192-86-0C22H23N3O4S
- 5-Phenyl-N-(1-(propylsulfonyl)-1,2,3,4-tetrahydroquinolin-6-yl)isoxazole-3-carboxamide1207022-93-2C22H23N3O4S
- 2-[(3-Cyano-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydroquinolin-2-yl)sulfanyl]-N-(2,4-dimethoxyphenyl)acetamide721431-82-9C22H23N3O4S
- (E)-1-(1H-Benzo[d]imidazol-1-yl)-3-(4-methoxy-3-(piperidin-1-ylsulfonyl)phenyl)prop-2-en-1-one324774-54-1C22H23N3O4S
- N-(5-(3-(Isopropylsulfonyl)phenyl)-1,3,4-oxadiazol-2-yl)-5,6,7,8-tetrahydronaphthalene-2-carboxamide922102-00-9C22H23N3O4S
- Ethyl 5-(cyclohexanecarboxamido)-4-oxo-3-phenyl-3,4-dihydrothieno[3,4-d]pyridazine-1-carboxylate851946-81-1C22H23N3O4S
- N-(1,3-Benzodioxol-5-ylmethyl)-3-(7-methyl-4-oxo-3,4,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-2-yl)propanamide950435-96-8C22H23N3O4S
- 2-(N-(4-Methoxybenzyl)pyridine-3-sulfonamido)-N-methyl-N-phenylacetamide1021106-48-8C22H23N3O4S
- 2-(N-(4-Methoxyphenyl)pyridine-3-sulfonamido)-N-phenethylacetamide1021054-86-3C22H23N3O4S
- Methyl 4-oxo-3-(3-oxo-3-((2-phenylpropyl)amino)propyl)-2-thioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylate946241-41-4C22H23N3O4S
- Methyl 4-oxo-3-(4-oxo-4-((1-phenylethyl)amino)butyl)-2-thioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylate946241-57-2C22H23N3O4S
- N-(3,4-Dimethoxyphenethyl)-2-((6-oxo-4-phenyl-1,6-dihydropyrimidin-2-yl)thio)acetamide518017-93-1C22H23N3O4S
- N'-(3,4-Dimethoxyphenyl)-N-[2-(4-methyl-2-phenyl-1,3-thiazol-5-yl)ethyl]ethanediamide894012-03-4C22H23N3O4S
- (E)-N-(3-(3-(4-Methoxyphenyl)-6-oxopyridazin-1(6H)-yl)propyl)-2-phenylethenesulfonamide1021253-03-1C22H23N3O4S
- 3-Methyl-1-phenyl-4-(4-(piperidin-1-ylsulfonyl)benzoyl)-1H-pyrazol-5(4H)-one1021062-49-6C22H23N3O4S
- N-(4-Methoxybenzyl)-2-(2-((3-methoxybenzyl)thio)-6-oxo-1,6-dihydropyrimidin-4-yl)acetamide1105237-48-6C22H23N3O4S
- N-(2-Ethoxyphenyl)-2-(2-((3-methoxybenzyl)thio)-6-oxo-1,6-dihydropyrimidin-4-yl)acetamide1105211-55-9C22H23N3O4S
- 2-(4-(Ethylsulfonyl)phenyl)-N-(5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl)acetamide941884-67-9C22H23N3O4S
- 3-(1,1-Dioxido-2H-1,2,4-benzothiadiazin-3-yl)-1-hexyl-4-hydroxy-2(1H)-quinolinone303776-91-2C22H23N3O4S
- AN-648/407404836343-56-2C22H23N3O4S
- N-(2,6-Dimethylquinolin-4-yl)-3-(morpholin-4-ylsulfonyl)benzamide953852-83-0C22H23N3O4S
- 2-[(2,4-Dimethoxyphenyl)methylsulfinyl]-N-(2,6-dimethylpyridin-4-yl)pyridine-3-carboxamide181821-99-8C22H23N3O4S
- 3-(8-Oxo-6-sulfanylidene-5H-[1,3]dioxolo[4,5-g]quinazolin-7-yl)-N-(4-phenylbutan-2-yl)propanamide688054-91-3C22H23N3O4S
- 2-(4-Isopropoxy-3-methoxyphenyl)-6-mercapto-1-(4-methoxyphenyl)-4-oxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile801226-09-5C22H23N3O4S
- N-(4-Methylbenzyl)-2-oxo-6-(pyrrolidin-1-ylsulfonyl)-1,2-dihydroquinoline-4-carboxamide687591-14-6C22H23N3O4S
- 1-(4-(4-(Phenylsulfonyl)-2-(m-tolyl)oxazol-5-yl)piperazin-1-yl)ethanone946201-16-7C22H23N3O4S
- N~2~-(3-methoxyphenyl)-N~2~-[(4-methylphenyl)sulfonyl]-N-(pyridin-4-ylmethyl)glycinamide335208-69-0C22H23N3O4S
- Ethyl 2-((8,8-dimethyl-4-oxo-3-phenyl-4,6,8,9-tetrahydro-3H-pyrano[3',4':5,6]pyrido[2,3-d]pyrimidin-2-yl)thio)acetate267665-51-0C22H23N3O4S
- 1-(2-Ethoxyphenyl)-3-[4-[(4-methylphenyl)sulfonylamino]phenyl]urea706777-72-2C22H23N3O4S
- 2-(N-Methylsulfonyl-4-phenoxyanilino)-N-(pyridin-3-ylmethyl)propanamide1008865-77-7C22H23N3O4S
- N-(1,3-Benzodioxol-5-ylmethyl)-4-oxo-3-pentyl-2-sulfanylidene-1H-quinazoline-7-carboxamide421590-57-0C22H23N3O4S
- 3-(Benzo[d][1,3]dioxol-5-ylmethyl)-N-isopentyl-4-oxo-2-thioxo-1,2,3,4-tetrahydroquinazoline-7-carboxamide451466-41-4C22H23N3O4S
- N-Benzyl-6-(8-oxo-6-sulfanylidene-5H-[1,3]dioxolo[4,5-g]quinazolin-7-yl)hexanamide688053-73-8C22H23N3O4S
- N-(8-Methoxy-2-methylquinolin-4-yl)-3-(pyrrolidin-1-ylsulfonyl)benzamide1010878-73-5C22H23N3O4S
- 2-(2,3-Dimethoxyphenyl)-1-methyl-N-(6-methyl-1,3-benzothiazol-2-yl)-5-oxopyrrolidine-3-carboxamide1282119-58-7C22H23N3O4S
- Allyl 2-(allylthio)-5-(3-methoxyphenyl)-7-methyl-4-oxo-3,4,5,8-tetrahydropyrido[2,3-d]pyrimidine-6-carboxylate923164-77-6C22H23N3O4S
- 2-[N-(Benzenesulfonyl)-2-methoxy-5-methylanilino]-N-(pyridin-2-ylmethyl)acetamide335393-08-3C22H23N3O4S
- 2-[N-(Benzenesulfonyl)-2-ethoxyanilino]-N-(pyridin-2-ylmethyl)acetamide425650-10-8C22H23N3O4S
- 2-[(4-Ethoxyphenyl)(phenylsulfonyl)amino]-N-(3-pyridylmethyl)acetamide425685-12-7C22H23N3O4S
- 1-(tert-Butyl)-3-methyl-4-(phenylthio)-1H-pyrazol-5-yl 2-methyl-3-nitrobenzoate851127-17-8C22H23N3O4S
- [2-tert-Butyl-5-methyl-4-(2-nitrophenyl)sulfanylpyrazol-3-yl] 4-methylbenzoate851127-51-0C22H23N3O4S
- 2-(3,4-Dimethoxyphenyl)-N-(2-(4-methoxyphenyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)acetamide476458-24-9C22H23N3O4S
- 3,4,5-Trimethoxy-N-(2-(m-tolyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)benzamide361477-63-6C22H23N3O4S
- 5,5,7,7-Tetramethyl-2-(2-oxo-2H-chromene-3-carboxamido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide864860-10-6C22H23N3O4S
- N-(3-Methylbutyl)-4-[(8-oxo-6-sulfanylidene-5H-[1,3]dioxolo[4,5-g]quinazolin-7-yl)methyl]benzamide688055-48-3C22H23N3O4S
- 1-(4-Methoxybenzenesulfonyl)-4-[4-(1H-pyrrol-1-yl)benzoyl]piperazine930414-40-7C22H23N3O4S
- Ethyl 2-(2-{[5-(4-methoxyphenyl)-1-methyl-1H-imidazol-2-yl]sulfanyl}acetamido)benzoate932325-80-9C22H23N3O4S
- Methyl 5-phenyl-2-({[4-(1H-pyrrol-1-yl)tetrahydro-2H-pyran-4-yl]acetyl}amino)-1,3-thiazole-4-carboxylate1630853-76-7C22H23N3O4S
- 5-(Benzo[d][1,3]dioxol-5-yl)-2-(sec-butylthio)-7,8,9,10-tetrahydropyrimido[4,5-b]quinoline-4,6(3H,5H)-dione631853-91-3C22H23N3O4S
- 5-(3,4-Dimethoxyphenyl)-2-(prop-2-en-1-ylsulfanyl)-3H,4H,5H,6H,7H,8H,9H,10H-pyrimido[4,5-b]quinoline-4,6-dione627045-85-6C22H23N3O4S
- 1-(tert-Butyl)-3-methyl-4-((2-nitrophenyl)thio)-1H-pyrazol-5-yl 2-methylbenzoate851127-49-6C22H23N3O4S
- Ethyl 2-{[3-(4-oxoquinazolin-3(4H)-yl)propanoyl]amino}-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate663200-49-5C22H23N3O4S
- 2-(1,3-Benzothiazol-2-ylamino)-2-oxoethyl N-(phenylcarbonyl)leucinate1396971-44-0C22H23N3O4S
- 2-[2-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)propanamido]-N-ethyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide611194-05-9C22H23N3O4S
- 2-Cyano-3-(4-methoxyphenyl)-N-[3-(piperidine-1-sulfonyl)phenyl]prop-2-enamide717119-24-9C22H23N3O4S
- CJ-13610 metabolite M4179420-33-8C22H23N3O4S
- N-{4-[(2-Methylpiperidin-1-yl)sulfonyl]phenyl}-5-phenyl-1,2-oxazole-3-carboxamide898482-65-0C22H23N3O4S
- N-{4-[(3-Methylpiperidin-1-yl)sulfonyl]phenyl}-5-phenyl-1,2-oxazole-3-carboxamide898483-08-4C22H23N3O4S
Frequently asked questions
What is the molar mass of C22H23N3O4S?
The molar mass of C22H23N3O4S is 425.50 g/mol, calculated from standard atomic weights for 22 carbon atoms, 23 hydrogen atoms, 3 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 425.1409 Da.
How many compounds have the formula C22H23N3O4S?
CompoundList lists 216 compounds with the molecular formula C22H23N3O4S, including Emd 53998, EMD 57439, 2-(3,4-Dimethoxyphenyl)-3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-1,3-thiazolidin-4-one. 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 C22H23N3O4S?
C22H23N3O4S has a degree of unsaturation of 13. 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.