Molecular formula
C25H26N4O3S
73 compounds have this formula on CompoundList.
- Molar mass
- 462.57g/mol
- Monoisotopic mass
- 462.1726Da
- Atoms
- 59
- Elements
- 5
- Rings plus double bonds
- 15
The formula C25H26N4O3S describes a molecule made of 25 carbon atoms, 26 hydrogen atoms, 4 nitrogen atoms, 3 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 × 2564.91%12.011 × 25 = 300.275 g/mol
- H Hydrogen × 265.67%1.008 × 26 = 26.208 g/mol
- N Nitrogen × 412.11%14.007 × 4 = 56.028 g/mol
- O Oxygen × 310.38%15.999 × 3 = 47.997 g/mol
- S Sulfur × 16.93%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C25H26N4O3S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 73 of 73 compounds
1-Cyclohexyl-2-imino-10-methyl-3-((4-methylphenyl)sulfonyl)-1,2-dihydro-5H-dipyrido(1,2-A:2,3-D)pyrimidin-5-one
CAS 606953-12-2C25H26N4O3S
2-Amino-4-(2,5-dimethyl-3-thienyl)-7,7-dimethyl-1-(2-methyl-5-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydro-3-quinolinecarbonitrile
CAS 441783-41-1C25H26N4O3S
![2-[[11-(Hydroxymethyl)-14-methyl-5-phenyl-2-oxa-4,6,13-triazatricyclo[8.4.0.03,8]tetradeca-1(10),3(8),4,6,11,13-hexaen-7-yl]sulfanyl]-1-piperidin-1-ylethanone chemical structure, C25H26N4O3S, CAS 892379-37-2](/s/IJTKUJDEZLQTPP-UHFFFAOYSA-N.svg)
2-[[11-(Hydroxymethyl)-14-methyl-5-phenyl-2-oxa-4,6,13-triazatricyclo[8.4.0.03,8]tetradeca-1(10),3(8),4,6,11,13-hexaen-7-yl]sulfanyl]-1-piperidin-1-ylethanone
CAS 892379-37-2C25H26N4O3S
![3-[2-[4-(2-Methoxyphenyl)piperazin-1-yl]ethyl]-5-phenyl-1H-thieno[3,2-e]pyrimidine-2,4-dione chemical structure, C25H26N4O3S, CAS 255713-47-4](/s/HLVQBOYEHQRWHG-UHFFFAOYSA-N.svg)
3-[2-[4-(2-Methoxyphenyl)piperazin-1-yl]ethyl]-5-phenyl-1H-thieno[3,2-e]pyrimidine-2,4-dione
CAS 255713-47-4C25H26N4O3S
![N-[2-[[(1,5-Dimethyl-3-oxo-2-phenylpyrazol-4-yl)amino]methyl]phenyl]-4-methylbenzenesulfonamide chemical structure, C25H26N4O3S, CAS 364610-05-9](/s/NPJUFYGJHKURJS-UHFFFAOYSA-N.svg)
N-[2-[[(1,5-Dimethyl-3-oxo-2-phenylpyrazol-4-yl)amino]methyl]phenyl]-4-methylbenzenesulfonamide
CAS 364610-05-9C25H26N4O3S
4-(2-Amino-3-cyano-7,7-dimethyl-4-(4-methylphenyl)-5-oxo-5,6,7,8-tetrahydro-1(4H)-quinolinyl)benzenesulfonamide
CAS 445022-64-0C25H26N4O3S
![N-(2-Furylmethyl)-4-oxo-3-pentyl-2-[(pyridin-4-ylmethyl)thio]-3,4-dihydroquinazoline-7-carboxamide chemical structure, C25H26N4O3S, CAS 422530-88-9](/s/QDAIWGONXDMSNO-UHFFFAOYSA-N.svg)
N-(2-Furylmethyl)-4-oxo-3-pentyl-2-[(pyridin-4-ylmethyl)thio]-3,4-dihydroquinazoline-7-carboxamide
CAS 422530-88-9C25H26N4O3S
![N-(3-{1-Benzoyl-5-[4-(dimethylamino)phenyl]-4,5-dihydro-1H-pyrazol-3-yl}phenyl)methanesulfonamide chemical structure, C25H26N4O3S, CAS 833429-34-8](/s/OLUNTPOWJDQIQS-UHFFFAOYSA-N.svg)
N-(3-{1-Benzoyl-5-[4-(dimethylamino)phenyl]-4,5-dihydro-1H-pyrazol-3-yl}phenyl)methanesulfonamide
CAS 833429-34-8C25H26N4O3S
2-Amino-4-(5-ethyl-2-thienyl)-7,7-dimethyl-1-(2-methyl-5-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydro-3-quinolinecarbonitrile
CAS 441783-42-2C25H26N4O3S
![2-((3-(3,5-Dimethylphenyl)-4-oxo-4,5-dihydro-3H-pyrimido[5,4-b]indol-2-yl)thio)-N-((tetrahydrofuran-2-yl)methyl)acetamide chemical structure, C25H26N4O3S, CAS 536705-64-3](/s/APQJNJVZQSVKHV-UHFFFAOYSA-N.svg)
2-((3-(3,5-Dimethylphenyl)-4-oxo-4,5-dihydro-3H-pyrimido[5,4-b]indol-2-yl)thio)-N-((tetrahydrofuran-2-yl)methyl)acetamide
CAS 536705-64-3C25H26N4O3S
![N-Cyclohexyl-2-[[3-(4-methoxyphenyl)-4-oxo-5H-pyrimido[5,4-b]indol-2-yl]sulfanyl]acetamide chemical structure, C25H26N4O3S, CAS 536707-46-7](/s/GOMJOLBPRNYBCW-UHFFFAOYSA-N.svg)
N-Cyclohexyl-2-[[3-(4-methoxyphenyl)-4-oxo-5H-pyrimido[5,4-b]indol-2-yl]sulfanyl]acetamide
CAS 536707-46-7C25H26N4O3S
Butanesulfonanilide, 4'-(3-acetamido-9-acridinylamino)-
CAS 53222-01-8C25H26N4O3S
![3-(4-Ethoxyphenyl)-2-(2-oxo-2-piperidin-1-ylethyl)sulfanyl-5H-pyrimido[5,4-b]indol-4-one chemical structure, C25H26N4O3S, CAS 536708-13-1](/s/LUZBJTZKNWLCKF-UHFFFAOYSA-N.svg)
3-(4-Ethoxyphenyl)-2-(2-oxo-2-piperidin-1-ylethyl)sulfanyl-5H-pyrimido[5,4-b]indol-4-one
CAS 536708-13-1C25H26N4O3S
![3-(4-Methoxyphenyl)-2-((2-(4-methylpiperidin-1-yl)-2-oxoethyl)thio)-3H-pyrimido[5,4-b]indol-4(5H)-one chemical structure, C25H26N4O3S, CAS 536707-22-9](/s/ADSYTMQXMJTCOC-UHFFFAOYSA-N.svg)
3-(4-Methoxyphenyl)-2-((2-(4-methylpiperidin-1-yl)-2-oxoethyl)thio)-3H-pyrimido[5,4-b]indol-4(5H)-one
CAS 536707-22-9C25H26N4O3S
![N-Butyl-3-{3-oxo-5-[(2-oxo-2-phenylethyl)sulfanyl]-2H,3H-imidazo[1,2-c]quinazolin-2-yl}propanamide chemical structure, C25H26N4O3S, CAS 1042719-56-1](/s/PMPYCZLZXOEHRU-UHFFFAOYSA-N.svg)
N-Butyl-3-{3-oxo-5-[(2-oxo-2-phenylethyl)sulfanyl]-2H,3H-imidazo[1,2-c]quinazolin-2-yl}propanamide
CAS 1042719-56-1C25H26N4O3S
3,5-Dimethyl-N-(2-(3-((2-((5-methylisoxazol-3-yl)amino)-2-oxoethyl)thio)-1H-indol-1-yl)ethyl)benzamide
CAS 532974-51-9C25H26N4O3S
![3-[[2-[4-(4-Methylbenzoyl)piperazin-1-yl]acetyl]amino]-5-phenylthiophene-2-carboxamide chemical structure, C25H26N4O3S, CAS 680203-04-7](/s/KCEIUECOYSVCTL-UHFFFAOYSA-N.svg)
3-[[2-[4-(4-Methylbenzoyl)piperazin-1-yl]acetyl]amino]-5-phenylthiophene-2-carboxamide
CAS 680203-04-7C25H26N4O3S
6-Ethyl-2-((2-(3-(4-methoxyphenyl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazol-1-yl)-2-oxoethyl)thio)pyrimidin-4(3H)-one
CAS 900007-83-2C25H26N4O3S
![N-tert-Butyl-5-{4-[(4-hydroxyphenyl)amino]phthalazin-1-yl}-2-methylbenzenesulfonamide chemical structure, C25H26N4O3S, CAS 375358-74-0](/s/PBJIAOIUJQMROT-UHFFFAOYSA-N.svg)
N-tert-Butyl-5-{4-[(4-hydroxyphenyl)amino]phthalazin-1-yl}-2-methylbenzenesulfonamide
CAS 375358-74-0C25H26N4O3S
![6-Amino-4-(3-methoxy-4-propan-2-yloxyphenyl)-3-[(4-methylphenyl)sulfanylmethyl]-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile chemical structure, C25H26N4O3S, CAS 445266-62-6](/s/XINNVFXNJHVGCY-UHFFFAOYSA-N.svg)
6-Amino-4-(3-methoxy-4-propan-2-yloxyphenyl)-3-[(4-methylphenyl)sulfanylmethyl]-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
CAS 445266-62-6C25H26N4O3S
![3-(3-Methoxyphenyl)-2-((2-(4-methylpiperidin-1-yl)-2-oxoethyl)thio)-3H-pyrimido[5,4-b]indol-4(5H)-one chemical structure, C25H26N4O3S, CAS 536706-28-2](/s/PSOCTIJZQRWZKU-UHFFFAOYSA-N.svg)
3-(3-Methoxyphenyl)-2-((2-(4-methylpiperidin-1-yl)-2-oxoethyl)thio)-3H-pyrimido[5,4-b]indol-4(5H)-one
CAS 536706-28-2C25H26N4O3S
![2-[4-(Azepan-1-ylsulfonyl)phenyl]-5-(3,4-dihydroisoquinolin-2(1H)-yl)-1,3-oxazole-4-carbonitrile chemical structure, C25H26N4O3S, CAS 940999-71-3](/s/OGIDBHHFHUXRJD-UHFFFAOYSA-N.svg)
2-[4-(Azepan-1-ylsulfonyl)phenyl]-5-(3,4-dihydroisoquinolin-2(1H)-yl)-1,3-oxazole-4-carbonitrile
CAS 940999-71-3C25H26N4O3S
![5-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-{4-[(4-methylpiperidin-1-yl)sulfonyl]phenyl}-1,3-oxazole-4-carbonitrile chemical structure, C25H26N4O3S, CAS 941000-48-2](/s/JTPGMQAVOYYJSX-UHFFFAOYSA-N.svg)
5-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-{4-[(4-methylpiperidin-1-yl)sulfonyl]phenyl}-1,3-oxazole-4-carbonitrile
CAS 941000-48-2C25H26N4O3S
2-(4-((3,4-Dihydroisoquinolin-2(1H)-yl)sulfonyl)phenyl)-5-(4-methylpiperidin-1-yl)oxazole-4-carbonitrile
CAS 941003-04-9C25H26N4O3S
- 2-[4-(1,3-Benzodioxol-5-ylmethyl)piperazin-1-yl]-4-methyl-7-(thiophen-2-yl)-7,8-dihydroquinazolin-5(6H)-one775289-68-4C25H26N4O3S
- N-(Furan-2-ylmethyl)-4-oxo-3-pentyl-2-((pyridin-3-ylmethyl)thio)-3,4-dihydroquinazoline-7-carboxamide451467-34-8C25H26N4O3S
- 2-Benzyl-5-{[1-(morpholin-4-yl)-1-oxobutan-2-yl]sulfanyl}-2H,3H-imidazo[1,2-c]quinazolin-3-one1024479-78-4C25H26N4O3S
- 3,4-Dimethyl-N-(2-(3-((2-((5-methylisoxazol-3-yl)amino)-2-oxoethyl)thio)-1H-indol-1-yl)ethyl)benzamide532975-08-9C25H26N4O3S
- 5-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-(4-((3-methylpiperidin-1-yl)sulfonyl)phenyl)oxazole-4-carbonitrile941249-03-2C25H26N4O3S
- N-[3-(Benzenesulfonyl)-1-cyclohexylpyrrolo[3,2-b]quinoxalin-2-yl]propanamide373377-98-1C25H26N4O3S
- 2-((2-(Azepan-1-yl)-2-oxoethyl)thio)-3-(3-methoxyphenyl)-3H-pyrimido[5,4-b]indol-4(5H)-one536706-26-0C25H26N4O3S
- N-(4-(1H-Benzo[d]imidazol-2-yl)phenyl)-4-(N-butyl-N-methylsulfamoyl)benzamide683767-43-3C25H26N4O3S
- 1-Cyclohexyl-2-imino-8-methyl-3-[(4-methylphenyl)sulfonyl]-1,2-dihydro-5H-dipyrido[1,2-a:2',3'-d]pyrimidin-5-one606953-43-9C25H26N4O3S
- (6-(4-Methoxyphenyl)-3-methylimidazo[2,1-b]thiazol-2-yl)(4-(2-methoxyphenyl)piperazin-1-yl)methanone852134-59-9C25H26N4O3S
- N-[2-(3,4-Dimethoxyphenyl)ethyl]-2-{[2-(4-methylphenyl)pyrazolo[1,5-A]pyrazin-4-yl]sulfanyl}acetamide1021210-98-9C25H26N4O3S
- 2-(Phenoxymethyl)-1-((1-(pyridin-3-ylsulfonyl)piperidin-4-yl)methyl)-1H-benzo[d]imidazole1210456-69-1C25H26N4O3S
- 2-((3-Butyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide1261009-12-4C25H26N4O3S
- 2-({3-Butyl-4-oxo-7-phenyl-3H,4H,5H-pyrrolo[3,2-d]pyrimidin-2-yl}sulfanyl)-N-(3-methoxyphenyl)acetamide1260914-30-4C25H26N4O3S
- 2-((3-Butyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)-N-(2-methoxyphenyl)acetamide1261010-76-7C25H26N4O3S
- 2,2-Dimethyl-5-morpholino-9-(o-tolyl)-4,9-dihydro-1H-pyrano[4'',3'':4',5']pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-8(2H)-one371206-75-6C25H26N4O3S
- 2-((2-(Azepan-1-yl)-2-oxoethyl)thio)-3-(4-methoxyphenyl)-3H-pyrimido[5,4-b]indol-4(5H)-one536707-20-7C25H26N4O3S
- N-(2-(1H-Benzo[d]imidazol-2-yl)phenyl)-4-(N-butyl-N-methylsulfamoyl)benzamide683762-62-1C25H26N4O3S
- N-[3-(1H-Benzimidazol-2-yl)phenyl]-4-[butyl(methyl)sulfamoyl]benzamide683770-06-1C25H26N4O3S
- 2-(8,8-Dimethyl-4-oxo-2-propyl-4,7,8,10-tetrahydro-3H-pyrano[3'',4'':5',6']pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-3-yl)-N-phenylacetamide844825-41-8C25H26N4O3S
- 3-(2-Methoxyphenyl)-2-((2-(4-methylpiperidin-1-yl)-2-oxoethyl)thio)-3H-pyrimido[5,4-b]indol-4(5H)-one887215-30-7C25H26N4O3S
- 2-({3-[(3-Methoxyphenyl)methyl]-4-oxo-7-phenyl-3H,4H,5H-pyrrolo[3,2-d]pyrimidin-2-yl}sulfanyl)-N-(propan-2-yl)acetamide1040656-92-5C25H26N4O3S
- 2-{[2-(2-Butoxyphenyl)pyrazolo[1,5-a]pyrazin-4-yl]sulfanyl}-N-(4-methoxyphenyl)acetamide1040653-87-9C25H26N4O3S
- N-(1-(4-(3,4-Dimethoxyphenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)-2-phenylbutanamide1019096-52-6C25H26N4O3S
- 7-(Furan-2-yl)-5-(2-(4-isopropylphenyl)-2-oxoethyl)-2-(piperidin-1-yl)thiazolo[4,5-d]pyridazin-4(5H)-one1202971-62-7C25H26N4O3S
- 2-((2-(3,4-Dihydroisoquinolin-2(1H)-yl)-2-oxoethyl)thio)-3-ethyl-8-methoxy-5-methyl-3H-pyrimido[5,4-b]indol-4(5H)-one1112301-32-2C25H26N4O3S
- 3-{[(1-Ethyl-3-methyl-7-oxo-6-phenethyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)sulfanyl]methyl}-4-methoxybenzaldehyde1286141-64-7C25H26N4O3S
- 3-({[1-Ethyl-3-methyl-6-(4-methylbenzyl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl]sulfanyl}methyl)-4-methoxybenzaldehyde1287039-70-6C25H26N4O3S
- 3,4-Diethoxy-N-(3-methyl-1-(4-(p-tolyl)thiazol-2-yl)-1H-pyrazol-5-yl)benzamide1019102-98-7C25H26N4O3S
- 2-(4-Ethoxyphenyl)-N-(1-(4-(4-ethoxyphenyl)thiazol-2-yl)-3-methyl-1H-pyrazol-5-yl)acetamide1019095-70-5C25H26N4O3S
- 3-(4-Ethoxy-3-methoxyphenyl)-5-(((6-(4-isopropylphenyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole1115285-97-6C25H26N4O3S
- 3-(3,4-Dimethoxyphenyl)-5-(((6-(4-isobutylphenyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole1114915-69-3C25H26N4O3S
- N-(2,3-Dihydro-1H-inden-5-yl)-2-({3-ethyl-8-methoxy-5-methyl-4-oxo-3H,4H,5H-pyrimido[5,4-b]indol-2-yl}sulfanyl)acetamide1112430-92-8C25H26N4O3S
- N-(Benzo[d][1,3]dioxol-5-ylmethyl)-1-(6-(p-tolylthio)pyridazin-3-yl)piperidine-4-carboxamide1223832-94-7C25H26N4O3S
- 2-((3-Isopropyl-5-methyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide1111981-71-5C25H26N4O3S
- N-(4-Methoxyphenyl)-2-({5-methyl-4-oxo-7-phenyl-3-propyl-3H,4H,5H-pyrrolo[3,2-d]pyrimidin-2-yl}sulfanyl)acetamide1112034-21-5C25H26N4O3S
- 6-(Benzo[d][1,3]dioxol-5-ylmethyl)-5-((2,5-dimethylbenzyl)thio)-1-ethyl-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one1358765-91-9C25H26N4O3S
- N-(4-Ethoxyphenyl)-2-((3-isopropyl-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide2034480-14-1C25H26N4O3S
- N-(sec-Butyl)-2-((3-(4-methoxyphenyl)-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)acetamide2034584-28-4C25H26N4O3S
- 2-((3-(4-Ethoxyphenyl)-4-oxo-7-phenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-2-yl)thio)-N-isopropylacetamide2034584-55-7C25H26N4O3S
- (E)-N-(4-(Phenyldiazenyl)phenyl)-1-tosylpiperidine-3-carboxamide952895-97-5C25H26N4O3S
- (E)-N-(4-(Phenyldiazenyl)phenyl)-1-tosylpiperidine-4-carboxamide1007054-10-5C25H26N4O3S
- (E)-4-(N-Cyclopentyl-N-methylsulfamoyl)-N-(4-(phenyldiazenyl)phenyl)benzamide1006811-74-0C25H26N4O3S
- N-(2-(Furan-2-yl)-2-(4-(4-methoxyphenyl)piperazin-1-yl)ethyl)benzo[d]thiazole-2-carboxamide1210275-91-4C25H26N4O3S
- 2-{[3-(2-Methoxyethyl)-5-methyl-4-oxo-7-phenyl-3H,4H,5H-pyrrolo[3,2-d]pyrimidin-2-yl]sulfanyl}-N-(2-methylphenyl)acetamide1111960-37-2C25H26N4O3S
- 2-((2-(3-(4-Methoxyphenyl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazol-1-yl)-2-oxoethyl)thio)-5,6-dimethylpyrimidin-4(3H)-one899948-77-7C25H26N4O3S
- 3-(1-Benzyl-1H-pyrazol-4-yl)-1-[4-(2-phenylethenesulfonyl)piperazin-1-yl]prop-2-en-1-one956274-59-2C25H26N4O3S
- 1-(3-Cyclopropyl-1-phenyl-1H-pyrazole-5-carbonyl)-4-(2-phenylethenesulfonyl)piperazine956255-20-2C25H26N4O3S
- 1,1'-(3-Benzyl-6-(4-ethoxyphenyl)-5H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine-5,7-diyl)bis(propan-1-one)946346-35-6C25H26N4O3S
Frequently asked questions
What is the molar mass of C25H26N4O3S?
The molar mass of C25H26N4O3S is 462.57 g/mol, calculated from standard atomic weights for 25 carbon atoms, 26 hydrogen atoms, 4 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 462.1726 Da.
How many compounds have the formula C25H26N4O3S?
CompoundList lists 73 compounds with the molecular formula C25H26N4O3S, including 1-Cyclohexyl-2-imino-10-methyl-3-((4-methylphenyl)sulfonyl)-1,2-dihydro-5H-dipyrido(1,2-A:2,3-D)pyrimidin-5-one, 2-Amino-4-(2,5-dimethyl-3-thienyl)-7,7-dimethyl-1-(2-methyl-5-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydro-3-quinolinecarbonitrile, 2-[[11-(Hydroxymethyl)-14-methyl-5-phenyl-2-oxa-4,6,13-triazatricyclo[8.4.0.03,8]tetradeca-1(10),3(8),4,6,11,13-hexaen-7-yl]sulfanyl]-1-piperidin-1-ylethanone. 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 C25H26N4O3S?
C25H26N4O3S has a degree of unsaturation of 15. 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.