Molecular formula
C25H26N2O4
99 compounds have this formula on CompoundList.
- Molar mass
- 418.49g/mol
- Monoisotopic mass
- 418.1893Da
- Atoms
- 57
- Elements
- 4
- Rings plus double bonds
- 14
The formula C25H26N2O4 describes a molecule made of 25 carbon atoms, 26 hydrogen atoms, 2 nitrogen atoms and 4 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 × 2571.75%12.011 × 25 = 300.275 g/mol
- H Hydrogen × 266.26%1.008 × 26 = 26.208 g/mol
- N Nitrogen × 26.69%14.007 × 2 = 28.014 g/mol
- O Oxygen × 415.29%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C25H26N2O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 99 of 99 compounds
![N-{(3,4-Dimethoxyphenyl)[(phenylacetyl)amino]methyl}-2-phenylacetamide chemical structure, C25H26N2O4, CAS 312279-14-4](/s/CBFOTQMJUHMVCS-UHFFFAOYSA-N.svg)
N-{(3,4-Dimethoxyphenyl)[(phenylacetyl)amino]methyl}-2-phenylacetamide
CAS 312279-14-4C25H26N2O4
![3-(10-Acetyl-3,3-dimethyl-1-oxo-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-11-yl)phenyl acetate chemical structure, C25H26N2O4, CAS 337503-26-1](/s/UMZZOTBDBDKTRK-UHFFFAOYSA-N.svg)
3-(10-Acetyl-3,3-dimethyl-1-oxo-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-11-yl)phenyl acetate
CAS 337503-26-1C25H26N2O4
![N-[3,5-Dimethyl-4-(2-morpholin-4-yl-2-oxoethoxy)phenyl]naphthalene-1-carboxamide chemical structure, C25H26N2O4, CAS 381197-92-8](/s/IGCZXEMIGXSVSO-UHFFFAOYSA-N.svg)
N-[3,5-Dimethyl-4-(2-morpholin-4-yl-2-oxoethoxy)phenyl]naphthalene-1-carboxamide
CAS 381197-92-8C25H26N2O4
N-((3,4-Dimethoxyphenyl)((2-methylbenzoyl)amino)methyl)-2-methylbenzamide
CAS 303061-77-0C25H26N2O4
![6-(1,3-Benzodioxol-5-yl)-9,9-dimethyl-5-propanoyl-6,8,10,11-tetrahydrobenzo[b][1,4]benzodiazepin-7-one chemical structure, C25H26N2O4, CAS 312621-32-2](/s/PZMXVSPOZWGCKF-UHFFFAOYSA-N.svg)
6-(1,3-Benzodioxol-5-yl)-9,9-dimethyl-5-propanoyl-6,8,10,11-tetrahydrobenzo[b][1,4]benzodiazepin-7-one
CAS 312621-32-2C25H26N2O4
Ethyl 1-(3-benzoyl-6-methoxyquinolin-4-yl)piperidine-3-carboxylate
CAS 872200-14-1C25H26N2O4
![2-[6-(3,4-Dihydro-1H-isoquinolin-2-ylmethyl)-4-oxopyran-3-yl]oxy-N-(2,4-dimethylphenyl)acetamide chemical structure, C25H26N2O4, CAS 898417-21-5](/s/FCSSFNMPWGPIAL-UHFFFAOYSA-N.svg)
2-[6-(3,4-Dihydro-1H-isoquinolin-2-ylmethyl)-4-oxopyran-3-yl]oxy-N-(2,4-dimethylphenyl)acetamide
CAS 898417-21-5C25H26N2O4
![2-[6-(3,4-Dihydro-1H-isoquinolin-2-ylmethyl)-4-oxopyran-3-yl]oxy-N-(4-ethylphenyl)acetamide chemical structure, C25H26N2O4, CAS 898456-11-6](/s/WCAUMXBBQCOUDN-UHFFFAOYSA-N.svg)
2-[6-(3,4-Dihydro-1H-isoquinolin-2-ylmethyl)-4-oxopyran-3-yl]oxy-N-(4-ethylphenyl)acetamide
CAS 898456-11-6C25H26N2O4
2-((6-((2-Methylindolin-1-yl)methyl)-4-oxo-4H-pyran-3-yl)oxy)-N-phenethylacetamide
CAS 898441-50-4C25H26N2O4
N-(2,4-Dimethylphenyl)-2-((6-((2-methylindolin-1-yl)methyl)-4-oxo-4H-pyran-3-yl)oxy)acetamide
CAS 898456-05-8C25H26N2O4
2-(6,8-di-tert-Butyl-2-oxo-2H-chromen-3-yl)-1H-1,3-benzodiazole-5-carboxylic acid
CAS 896370-60-8C25H26N2O4
![2-[6-(3,4-Dihydro-1H-isoquinolin-2-ylmethyl)-4-oxopyran-3-yl]oxy-N-(3,5-dimethylphenyl)acetamide chemical structure, C25H26N2O4, CAS 898456-08-1](/s/RNLNAWSRCHJLBB-UHFFFAOYSA-N.svg)
2-[6-(3,4-Dihydro-1H-isoquinolin-2-ylmethyl)-4-oxopyran-3-yl]oxy-N-(3,5-dimethylphenyl)acetamide
CAS 898456-08-1C25H26N2O4
![1'-(5-Oxo-1-(p-tolyl)pyrrolidine-3-carbonyl)spiro[chroman-2,4'-piperidin]-4-one chemical structure, C25H26N2O4, CAS 887467-98-3](/s/NOSQUGWZMKVVKZ-UHFFFAOYSA-N.svg)
1'-(5-Oxo-1-(p-tolyl)pyrrolidine-3-carbonyl)spiro[chroman-2,4'-piperidin]-4-one
CAS 887467-98-3C25H26N2O4
![2-[1-(6-Ethoxy-2,2,4-trimethylquinolin-1(2H)-yl)-1-oxopropan-2-yl]-1H-isoindole-1,3(2H)-dione chemical structure, C25H26N2O4, CAS 351498-57-2](/s/QTUQFNIUFYTLGC-UHFFFAOYSA-N.svg)
2-[1-(6-Ethoxy-2,2,4-trimethylquinolin-1(2H)-yl)-1-oxopropan-2-yl]-1H-isoindole-1,3(2H)-dione
CAS 351498-57-2C25H26N2O4
5-(Benzyloxy)-N-(1-benzylpiperidin-4-yl)-4-oxo-4H-pyran-2-carboxamide
CAS 1021209-02-8C25H26N2O4
Bms 188107
CAS 139232-80-7C25H26N2O4
![2-[(3,4-Dimethoxyphenyl)methyl]-1-[2-(2-methoxyphenoxy)ethyl]-1H-1,3-benzodiazole chemical structure, C25H26N2O4, CAS 876882-64-3](/s/UMMLEECCCVZDJC-UHFFFAOYSA-N.svg)
2-[(3,4-Dimethoxyphenyl)methyl]-1-[2-(2-methoxyphenoxy)ethyl]-1H-1,3-benzodiazole
CAS 876882-64-3C25H26N2O4
![N-(5-Ethyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-2-(naphthalen-2-yloxy)acetamide chemical structure, C25H26N2O4, CAS 921812-45-5](/s/BBPWTRVOMICOHA-UHFFFAOYSA-N.svg)
N-(5-Ethyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)-2-(naphthalen-2-yloxy)acetamide
CAS 921812-45-5C25H26N2O4
![Ethyl 3-[(4-methoxyphenyl)carbonyl]-1,1-dimethyl-1H,2H,3H,6H-azepino[4,5-b]indole-5-carboxylate chemical structure, C25H26N2O4, CAS 629662-24-4](/s/LGDZCIUWYQBABV-UHFFFAOYSA-N.svg)
Ethyl 3-[(4-methoxyphenyl)carbonyl]-1,1-dimethyl-1H,2H,3H,6H-azepino[4,5-b]indole-5-carboxylate
CAS 629662-24-4C25H26N2O4
2-(4-(tert-Butyl)phenoxy)-N-(1-(furan-2-carbonyl)indolin-6-yl)acetamide
CAS 1040656-61-8C25H26N2O4
Methanaminium, N-(4-((4-(dimethylamino)phenyl)phenylmethylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, ethanedioate (1:1)
CAS 13425-25-7C25H26N2O4
![6-(2-(3-(3-Ethylbenzo[d]oxazol-3-ium-2-yl)allylidene)benzo[d]oxazol-3(2H)-yl)hexanoate chemical structure, C25H26N2O4, CAS 260430-02-2](/s/WORLWSFCGZCFSW-UHFFFAOYSA-N.svg)
6-(2-(3-(3-Ethylbenzo[d]oxazol-3-ium-2-yl)allylidene)benzo[d]oxazol-3(2H)-yl)hexanoate
CAS 260430-02-2C25H26N2O4
![N,N'-[(3,4-Dimethoxyphenyl)methylene]bis(4-methylbenzamide) chemical structure, C25H26N2O4, CAS 6131-51-7](/s/RGUMEWAANGIEAZ-UHFFFAOYSA-N.svg)
N,N'-[(3,4-Dimethoxyphenyl)methylene]bis(4-methylbenzamide)
CAS 6131-51-7C25H26N2O4
Meis-IN-3
CAS 2761326-88-7C25H26N2O4
- 4-((4-(Benzo[d][1,3]dioxol-5-ylmethyl)piperazin-1-yl)methyl)-7,8-dihydrocyclopenta[g]chromen-2(6H)-one847940-05-0C25H26N2O4
- (S)-2-(4-Amino-3-(4-hydroxyphenethyl)benzamido)-4-phenylbutanoic acid1622863-92-6C25H26N2O4
- 4-(Benzofuran-2-carbonyl)-1-(3-(dimethylamino)propyl)-3-hydroxy-5-(p-tolyl)-1H-pyrrol-2(5H)-one618363-67-0C25H26N2O4
- 3,5-Diethoxy-N-{3-[(2-methylbenzoyl)amino]phenyl}benzamide6011-34-3C25H26N2O4
- 7-Methyl-2-(3-morpholinopropyl)-1-phenyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione631881-55-5C25H26N2O4
- Methyl 4-(10-acetyl-3,3-dimethyl-1-oxo-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-11-yl)benzoate510760-46-0C25H26N2O4
- 2-(4-Methylphenoxy)-1-[4-(2-naphthalen-2-yloxyacetyl)piperazin-1-yl]ethanone525580-94-3C25H26N2O4
- 2-(3-Morpholinopropyl)-1-(p-tolyl)-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione844827-23-2C25H26N2O4
- (Z)-2-(Benzofuran-2-ylmethylene)-7-((4-ethylpiperazin-1-yl)methyl)-6-hydroxy-4-methylbenzofuran-3(2H)-one951949-38-5C25H26N2O4
- 2-(4-Methoxyphenyl)-N-[2-[[2-(4-methoxyphenyl)acetyl]amino]-4-methylphenyl]acetamide548434-51-1C25H26N2O4
- 1-[4-[2-(3-Methylphenoxy)acetyl]piperazin-1-yl]-2-naphthalen-2-yloxyethanone423739-62-2C25H26N2O4
- 6,7-Dimethyl-2-(2-morpholinoethyl)-1-phenyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione634575-76-1C25H26N2O4
- 2-[9-(1,3-Dioxoisoindol-2-yl)nonyl]isoindole-1,3-dione37830-04-9C25H26N2O4
- N-[3-Methoxy-4-(2-methylpropanoylamino)phenyl]-3-phenylmethoxybenzamide689764-20-3C25H26N2O4
- 2-(4-(tert-Butyl)phenyl)-3-(3-methoxypropyl)-3H-chromeno[2,3-d]pyrimidine-4,5-dione899400-05-6C25H26N2O4
- 4-(Benzofuran-2-carbonyl)-1-(2-(diethylamino)ethyl)-3-hydroxy-5-phenyl-1H-pyrrol-2(5H)-one618366-24-8C25H26N2O4
- 1-[4-(Allyloxy)phenyl]-2-[3-(dimethylamino)propyl]-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione631868-27-4C25H26N2O4
- 7-Methyl-2-(2-morpholinoethyl)-1-(p-tolyl)-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione634574-10-0C25H26N2O4
- Ethyl 4-[(cyclopentylcarbamoyl)methoxy]-2-phenylquinoline-6-carboxylate1114870-98-2C25H26N2O4
- (E)-Methyl 4,5-bis(benzyloxy)-2-((dimethylamino)methyleneamino)benzoate1415565-93-3C25H26N2O4
- (4-Methylphenyl)methyl N-[2-methyl-5-[(4-methylphenyl)methoxycarbonylamino]phenyl]carbamate6669-57-4C25H26N2O4
- 4-(Benzyloxy)-N-[4-(isobutyrylamino)-3-methoxyphenyl]benzamide637734-43-1C25H26N2O4
- 3-[(4-Benzhydryl-1-piperazinyl)carbonyl]-7-oxabicyclo[2.2.1]hept-5-ene-2-carboxylic acid473445-55-5C25H26N2O4
- 2-Ethoxy-N-[4-methoxy-3-(2-oxopiperidin-1-yl)phenyl]naphthalene-1-carboxamide941873-31-0C25H26N2O4
- N-[2-(1H-Indol-3-yl)-1-methylethyl]-3-(7-methoxy-4-methyl-2-oxo-2H-chromen-3-yl)propanamide919744-62-0C25H26N2O4
- 2-Ethoxy-N-(3,3,5-trimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-1-naphthamide921867-62-1C25H26N2O4
- N-[2-(4-Pyridyl)ethyl]-3-(2,3,5,9-tetramethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)propanamide1401594-91-9C25H26N2O4
- N-[2-(2-Pyridyl)ethyl]-3-(2,3,5,9-tetramethyl-7-oxo-7H-furo[3,2-g]chromen-6-yl)propanamide1401595-36-5C25H26N2O4
- 6-[2-[(E,3Z)-3-(3-Ethyl-1,3-benzoxazol-2-ylidene)prop-1-enyl]-1,3-benzoxazol-3-ium-3-yl]hexanoateC25H26N2O4
- Ethyl 2-benzamido-3-(4-phenylmethoxyanilino)propanoate80548-08-9C25H26N2O4
- N-[4-[[2-(4-Cyclohexylphenoxy)acetyl]amino]phenyl]furan-2-carboxamide430471-58-2C25H26N2O4
- 5-((3-(Benzyloxy)benzyl)amino)-2-morpholinobenzoic acid765924-83-2C25H26N2O4
- 2-(Naphthalen-1-ylamino)-2-oxoethyl N-(phenylcarbonyl)leucinate1396968-99-2C25H26N2O4
- 4-Butoxy-N-[1-(furan-2-carbonyl)-1,2,3,4-tetrahydroquinolin-6-yl]benzamide946318-00-9C25H26N2O4
- 4-Butoxy-N-[1-(furan-2-carbonyl)-1,2,3,4-tetrahydroquinolin-7-yl]benzamide946265-86-7C25H26N2O4
- N-(2,4-Dimethoxyphenyl)-N'-(3,3-diphenylpropyl)ethanediamide941998-73-8C25H26N2O4
- N-(3,4-Dimethoxyphenyl)-N'-(3,3-diphenylpropyl)ethanediamide941894-97-9C25H26N2O4
- N-(1-(1H-Indol-3-yl)propan-2-yl)-3-(7-methoxy-4-methyl-2-oxo-2H-chromen-6-yl)propanamide1010929-03-9C25H26N2O4
- Phenyl 4-((2-(naphthalen-2-yloxy)acetamido)methyl)piperidine-1-carboxylate1234936-28-7C25H26N2O4
- N-Benzhydryl-4-((6-methyl-2-oxo-2H-pyran-4-yl)oxy)piperidine-1-carboxamide1705504-36-4C25H26N2O4
- Methyl 4-[[4-[(E)-2-cyano-3-(cyclohexylamino)-3-oxoprop-1-enyl]phenoxy]methyl]benzoate732268-87-0C25H26N2O4
- N-{2-[(Isopropylamino)carbonyl]phenyl}-2-(2-phenoxyethoxy)benzamide881581-63-1C25H26N2O4
- 2-[6-(3,4-Dihydro-2H-quinolin-1-ylmethyl)-4-oxopyran-3-yl]oxy-N-(2,3-dimethylphenyl)acetamide898455-99-7C25H26N2O4
- 2-[6-(3,4-Dihydro-1H-isoquinolin-2-ylmethyl)-4-oxopyran-3-yl]oxy-N-(2,3-dimethylphenyl)acetamide898440-76-1C25H26N2O4
- 2-((6-((3,4-Dihydroisoquinolin-2(1H)-yl)methyl)-4-oxo-4H-pyran-3-yl)oxy)-N-phenethylacetamide898418-03-6C25H26N2O4
- 2-[6-(3,4-Dihydro-1H-isoquinolin-2-ylmethyl)-4-oxopyran-3-yl]oxy-N-[(4-methylphenyl)methyl]acetamide898456-70-7C25H26N2O4
- 6-[2-[(E,3E)-3-(3-Ethyl-1,3-benzoxazol-2-ylidene)prop-1-enyl]-1,3-benzoxazol-3-ium-3-yl]hexanoateC25H26N2O4
- Methyl 4-[[[2-[(2-methoxy-5-methylphenyl)amino]-2-oxo-1-phenylethyl]amino]methyl]benzoate1046461-91-9C25H26N2O4
- N-(2,5-Dimethylphenyl)-2-((6-((2-methylindolin-1-yl)methyl)-4-oxo-4H-pyran-3-yl)oxy)acetamide898456-02-5C25H26N2O4
- N-(5-Ethyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-2-(naphthalen-2-yloxy)acetamide921793-12-6C25H26N2O4
- N1-(2-([1,1'-biphenyl]-4-yl)-2-hydroxypropyl)-N2-(2-methoxybenzyl)oxalamide1705447-14-8C25H26N2O4
- 1-{8-[3-(Benzyloxy)benzoyl]-8-azabicyclo[3.2.1]octan-3-yl}pyrrolidine-2,5-dione1904073-25-1C25H26N2O4
- 6H-Quino(2,3,4-kl)acridine, 7,8-dihydro-2,3,11,12-tetramethoxy-7,7-dimethyl-132934-44-2C25H26N2O4
- Ethyl 2-[1-benzoyl-2-(1H-indol-3-ylmethyl)-3-oxopiperidin-4-yl]acetate30338-69-3C25H26N2O4
- 2-Ethoxy-N-[3-[(2-ethoxybenzoyl)amino]-4-methylphenyl]benzamide791840-91-0C25H26N2O4
- 2H,10H-Benzo(1,2-b:3,4-b')dipyran-2,10-dione, 8,9-dihydro-4-methyl-9-((4-(2-methylphenyl)-1-piperazinyl)methyl)-78808-02-3C25H26N2O4
- 2H,10H-Benzo(1,2-b:3,4-b')dipyran-2,10-dione, 8,9-dihydro-4-methyl-9-((4-(3-methylphenyl)-1-piperazinyl)methyl)-78808-03-4C25H26N2O4
- 2H,10H-Benzo(1,2-b:3,4-b')dipyran-2,10-dione, 8,9-dihydro-4-methyl-9-((4-(4-methylphenyl)-1-piperazinyl)methyl)-78808-04-5C25H26N2O4
- 3-(1-Methylpropoxy)-N-[3-[(2-phenoxyacetyl)amino]phenyl]benzamide941466-08-6C25H26N2O4
- N-(3-Amino-3-oxopropyl)-N-benzyl-4-(2-phenoxyethoxy)benzamide1071296-41-7C25H26N2O4
- N-(3-Amino-3-oxopropyl)-N-benzyl-2-(2-phenoxyethoxy)benzamide1071296-46-2C25H26N2O4
- N,N-Dimethyl-4-[[2-(2-phenoxyethoxy)benzoyl]amino]benzeneacetamide1158444-17-7C25H26N2O4
- 4-[(4-Ethoxyphenoxy)methyl]-N'-[(2-ethoxyphenyl)methylidene]benzohydrazide477956-05-1C25H26N2O4
- Topo III-IN-23072844-85-7C25H26N2O4
- Cyclopropanecarboxylic acid, 3-(((cyclopropylmethoxy)imino)methyl)-2,2-dimethyl-, cyano(3-phenoxyphenyl)methyl ester74124-06-4C25H26N2O4
- Ethyl 2-[(5-ethoxycarbonyl-3-methyl-1H-indol-2-yl)methyl]-3-methyl-1H-indole-5-carboxylate666752-22-3C25H26N2O4
- tert-Butyl N-[4-[(3-phenylmethoxybenzoyl)amino]phenyl]carbamate1098071-32-9C25H26N2O4
- 3,5-Bis(2,4-dimethoxyphenyl)-1-phenyl-4,5-dihydro-1H-pyrazole92682-99-0C25H26N2O4
- Methyl (e)-2-(3-(tert-butyl)-2-methoxy-5-(2-oxopyrazin-1(2H)-yl)styryl)benzoate1259374-34-9C25H26N2O4
- 11-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-4,11-diazatricyclo[6.2.1.0,2,6]undecane-6-carboxylic acid2138517-64-1C25H26N2O4
- rac-1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl (3R,4R)-1-benzyl-4-cyclopentylpyrrolidine-3-carboxylate2248350-83-4C25H26N2O4
- Methyl 6-[[3-(2-azatricyclo[10.4.0.04,9]hexadeca-1(16),4,6,8,12,14-hexaen-10-yn-2-yl)-3-oxopropyl]amino]-6-oxohexanoate2706564-27-2C25H26N2O4
- 2-[5-(Hexyloxy)-6-methoxy-4-methyl-8-quinolinyl]-1H-isoindole-1,3(2H)-dione121987-58-4C25H26N2O4
- 2-[[4-Amino-3-[2-(4-hydroxyphenyl)ethyl]benzoyl]amino]-4-phenylbutanoic acidC25H26N2O4
- tert-Butyl 4-(9H-fluoren-9-ylmethoxycarbonylamino)-1-methylpyrrole-2-carboxylate335059-62-6C25H26N2O4
Frequently asked questions
What is the molar mass of C25H26N2O4?
The molar mass of C25H26N2O4 is 418.49 g/mol, calculated from standard atomic weights for 25 carbon atoms, 26 hydrogen atoms, 2 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 418.1893 Da.
How many compounds have the formula C25H26N2O4?
CompoundList lists 99 compounds with the molecular formula C25H26N2O4, including N-{(3,4-Dimethoxyphenyl)[(phenylacetyl)amino]methyl}-2-phenylacetamide, 3-(10-Acetyl-3,3-dimethyl-1-oxo-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-11-yl)phenyl acetate, N-[3,5-Dimethyl-4-(2-morpholin-4-yl-2-oxoethoxy)phenyl]naphthalene-1-carboxamide. 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 C25H26N2O4?
C25H26N2O4 has a degree of unsaturation of 14. 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.