Molecular formula
C26H32N2O4
81 compounds have this formula on CompoundList.
- Molar mass
- 436.55g/mol
- Monoisotopic mass
- 436.2362Da
- Atoms
- 64
- Elements
- 4
- Rings plus double bonds
- 12
The formula C26H32N2O4 describes a molecule made of 26 carbon atoms, 32 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 × 2671.53%12.011 × 26 = 312.286 g/mol
- H Hydrogen × 327.39%1.008 × 32 = 32.256 g/mol
- N Nitrogen × 26.42%14.007 × 2 = 28.014 g/mol
- O Oxygen × 414.66%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C26H32N2O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 81 of 81 compounds
![2,6-Dicyclohexyloctahydro-4,8-ethenopyrrolo[3',4':3,4]cyclobuta[1,2-f]isoindole-1,3,5,7(2H,6H)-tetrone chemical structure, C26H32N2O4, CAS 345950-91-6](/s/KSOCXRSCFJVURG-UHFFFAOYSA-N.svg)
2,6-Dicyclohexyloctahydro-4,8-ethenopyrrolo[3',4':3,4]cyclobuta[1,2-f]isoindole-1,3,5,7(2H,6H)-tetrone
CAS 345950-91-6C26H32N2O4
SB-423562
CAS 351490-27-2C26H32N2O4
![(2Z)-2-(4-tert-Butylbenzylidene)-6-hydroxy-7-{[4-(2-hydroxyethyl)piperazin-1-yl]methyl}-1-benzofuran-3(2H)-one chemical structure, C26H32N2O4, CAS 1177494-33-5](/s/DEXHXASOJYTRII-KQWNVCNZSA-N.svg)
(2Z)-2-(4-tert-Butylbenzylidene)-6-hydroxy-7-{[4-(2-hydroxyethyl)piperazin-1-yl]methyl}-1-benzofuran-3(2H)-one
CAS 1177494-33-5C26H32N2O4
![(Z)-Ethyl 2-methyl-5-oxo-4-(((2,2,6,6-tetramethylpiperidin-4-yl)amino)methylene)-4,5-dihydronaphtho[1,2-b]furan-3-carboxylate chemical structure, C26H32N2O4, CAS 637755-84-1](/s/SYXWABVOHCQJRI-UHFFFAOYSA-N.svg)
(Z)-Ethyl 2-methyl-5-oxo-4-(((2,2,6,6-tetramethylpiperidin-4-yl)amino)methylene)-4,5-dihydronaphtho[1,2-b]furan-3-carboxylate
CAS 637755-84-1C26H32N2O4
![1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-(4-isobutoxy-3-methylbenzoyl)-5-phenyl-1,5-dihydro-2H-pyrrol-2-one chemical structure, C26H32N2O4, CAS 488718-49-6](/s/VZHKCYYMHGZVMQ-ZNTNEXAZSA-N.svg)
1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-(4-isobutoxy-3-methylbenzoyl)-5-phenyl-1,5-dihydro-2H-pyrrol-2-one
CAS 488718-49-6C26H32N2O4
1-(2-(Diethylamino)ethyl)-3-hydroxy-4-(4-methoxy-3-methylbenzoyl)-5-(p-tolyl)-1H-pyrrol-2(5H)-one
CAS 488852-45-5C26H32N2O4
![4-(4-Butoxy-3-methylbenzoyl)-1-[2-(dimethylamino)ethyl]-3-hydroxy-5-phenyl-1,5-dihydro-2H-pyrrol-2-one chemical structure, C26H32N2O4, CAS 496773-66-1](/s/CURLXSAHDHKGQA-ZNTNEXAZSA-N.svg)
4-(4-Butoxy-3-methylbenzoyl)-1-[2-(dimethylamino)ethyl]-3-hydroxy-5-phenyl-1,5-dihydro-2H-pyrrol-2-one
CAS 496773-66-1C26H32N2O4
![1-[2-(Diethylamino)ethyl]-3-hydroxy-4-(4-methoxy-2-methylbenzoyl)-5-(4-methylphenyl)-1,5-dihydro-2H-pyrrol-2-one chemical structure, C26H32N2O4, CAS 488795-31-9](/s/DPXGBPLUVPJBBI-ZNTNEXAZSA-N.svg)
1-[2-(Diethylamino)ethyl]-3-hydroxy-4-(4-methoxy-2-methylbenzoyl)-5-(4-methylphenyl)-1,5-dihydro-2H-pyrrol-2-one
CAS 488795-31-9C26H32N2O4
![1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-(4-isobutoxy-2-methylbenzoyl)-5-phenyl-1,5-dihydro-2H-pyrrol-2-one chemical structure, C26H32N2O4, CAS 500279-21-0](/s/XVICLTCPQRQVBY-ZNTNEXAZSA-N.svg)
1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-(4-isobutoxy-2-methylbenzoyl)-5-phenyl-1,5-dihydro-2H-pyrrol-2-one
CAS 500279-21-0C26H32N2O4
5,6-Dimethoxy-3-methyl-N-phenyl-N-(3-(piperidin-1-yl)propyl)benzofuran-2-carboxamide
CAS 1415247-17-4C26H32N2O4
![1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-[3-methyl-4-(2-methylpropoxy)benzoyl]-5-phenyl-2,5-dihydro-1H-pyrrol-2-one chemical structure, C26H32N2O4](/s/VZHKCYYMHGZVMQ-UHFFFAOYSA-N.svg)
1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-[3-methyl-4-(2-methylpropoxy)benzoyl]-5-phenyl-2,5-dihydro-1H-pyrrol-2-one
C26H32N2O4
![1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-[2-methyl-4-(2-methylpropoxy)benzoyl]-5-phenyl-2,5-dihydro-1H-pyrrol-2-one chemical structure, C26H32N2O4](/s/XVICLTCPQRQVBY-UHFFFAOYSA-N.svg)
1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-[2-methyl-4-(2-methylpropoxy)benzoyl]-5-phenyl-2,5-dihydro-1H-pyrrol-2-one
C26H32N2O4
![1-[2-(Diethylamino)ethyl]-3-hydroxy-4-(4-methoxy-3-methylbenzoyl)-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-one chemical structure, C26H32N2O4](/s/XDNOMQBVTCUUPR-UHFFFAOYSA-N.svg)
1-[2-(Diethylamino)ethyl]-3-hydroxy-4-(4-methoxy-3-methylbenzoyl)-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-one
C26H32N2O4
![4-(4-Butoxy-3-methylbenzoyl)-1-[2-(dimethylamino)ethyl]-3-hydroxy-5-phenyl-2,5-dihydro-1H-pyrrol-2-one chemical structure, C26H32N2O4](/s/CURLXSAHDHKGQA-UHFFFAOYSA-N.svg)
4-(4-Butoxy-3-methylbenzoyl)-1-[2-(dimethylamino)ethyl]-3-hydroxy-5-phenyl-2,5-dihydro-1H-pyrrol-2-one
C26H32N2O4
![1-[2-(Diethylamino)ethyl]-3-hydroxy-4-(4-methoxy-2-methylbenzoyl)-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-one chemical structure, C26H32N2O4](/s/DPXGBPLUVPJBBI-UHFFFAOYSA-N.svg)
1-[2-(Diethylamino)ethyl]-3-hydroxy-4-(4-methoxy-2-methylbenzoyl)-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-one
C26H32N2O4
![2'-(2-Methoxyethyl)-N-[2-(4-methoxyphenyl)ethyl]-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide chemical structure, C26H32N2O4, CAS 1212461-46-5](/s/VCYSTGGHACEHST-UHFFFAOYSA-N.svg)
2'-(2-Methoxyethyl)-N-[2-(4-methoxyphenyl)ethyl]-1'-oxo-1',4'-dihydro-2'H-spiro[cyclopentane-1,3'-isoquinoline]-4'-carboxamide
CAS 1212461-46-5C26H32N2O4
EtDO-PIP2
CAS 1430611-23-6C26H32N2O4
1-(3,4-Dimethylphenyl)-N-((4-(2-methoxyphenyl)tetrahydro-2H-pyran-4-yl)methyl)-5-oxopyrrolidine-3-carboxamide
CAS 1207012-04-1C26H32N2O4
![N-(2-Ethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclohexane-1,3'-isoquinoline]-4'-carboxamide chemical structure, C26H32N2O4, CAS 1246038-87-8](/s/MBSRLCPXVGFIJF-UHFFFAOYSA-N.svg)
N-(2-Ethoxyphenyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclohexane-1,3'-isoquinoline]-4'-carboxamide
CAS 1246038-87-8C26H32N2O4
![2'-(2-Methoxyethyl)-N-(2-methoxy-5-methylphenyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclohexane-1,3'-isoquinoline]-4'-carboxamide chemical structure, C26H32N2O4, CAS 1246035-95-9](/s/PCPNEZQYWNZKSC-UHFFFAOYSA-N.svg)
2'-(2-Methoxyethyl)-N-(2-methoxy-5-methylphenyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclohexane-1,3'-isoquinoline]-4'-carboxamide
CAS 1246035-95-9C26H32N2O4
Echitovenidine
CAS 7222-35-7C26H32N2O4
![5-(4-tert-Butylphenyl)-1-[2-(dimethylamino)ethyl]-3-hydroxy-4-(4-methoxybenzoyl)-1,5-dihydro-2H-pyrrol-2-one chemical structure, C26H32N2O4, CAS 371125-17-6](/s/VCFYQZYEMCKKTM-XTQSDGFTSA-N.svg)
5-(4-tert-Butylphenyl)-1-[2-(dimethylamino)ethyl]-3-hydroxy-4-(4-methoxybenzoyl)-1,5-dihydro-2H-pyrrol-2-one
CAS 371125-17-6C26H32N2O4
![1-[3-(Dimethylamino)propyl]-3-hydroxy-5-(4-isopropylphenyl)-4-(4-methoxybenzoyl)-1,5-dihydro-2H-pyrrol-2-one chemical structure, C26H32N2O4, CAS 371116-17-5](/s/MTFZUYYNIDYFMU-ZNTNEXAZSA-N.svg)
1-[3-(Dimethylamino)propyl]-3-hydroxy-5-(4-isopropylphenyl)-4-(4-methoxybenzoyl)-1,5-dihydro-2H-pyrrol-2-one
CAS 371116-17-5C26H32N2O4
(E)-1-(2-Hydroxy-4,6-dimethoxy-3-(3-methylbut-2-en-1-yl)phenyl)-3-(3-(piperazin-1-yl)phenyl)prop-2-en-1-one
CAS 2345705-41-9C26H32N2O4
- 2,3,9,9-Tetramethyl-6-(3,4,5-trimethoxyphenyl)-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one433702-59-1C26H32N2O4
- N-[4-[(2,2-Dimethyl-3-oxobicyclo[2.2.1]heptane-4-carbonyl)amino]phenyl]-2,2-dimethyl-3-oxobicyclo[2.2.1]heptane-4-carboxamide1005069-03-3C26H32N2O4
- 5-(4-(tert-Butyl)phenyl)-1-(2-(dimethylamino)ethyl)-3-hydroxy-4-(3-methoxybenzoyl)-1H-pyrrol-2(5H)-one608503-22-6C26H32N2O4
- Strychnine valerate6101-07-1C26H32N2O4
- Benzyl 3-(1-(tert-butoxycarbonyl)piperidin-4-yl)indoline-1-carboxylate1160248-39-4C26H32N2O4
- Benzyl 3-(1-(tert-butoxycarbonyl)piperidin-3-yl)indoline-1-carboxylate1160248-34-9C26H32N2O4
- 1-[4-[2-Hydroxy-3-(2-methylanilino)propoxy]phenoxy]-3-(2-methylanilino)propan-2-ol420101-81-1C26H32N2O4
- N-(3-{[(3,3-Dimethyl-2-oxobicyclo[2.2.1]hept-1-yl)carbonyl]amino}phenyl)-3,3-dimethyl-2-oxobicyclo[2.2.1]heptane-1-carboxamide1005069-25-9C26H32N2O4
- 1-Benzylamino-3-[4-(3-benzylamino-2-hydroxy-propoxy)-phenoxy]-propan-2-ol332150-46-6C26H32N2O4
- 1-[3-(Dimethylamino)propyl]-3-hydroxy-5-(4-methylphenyl)-4-[4-(propan-2-yloxy)benzoyl]-2,5-dihydro-1H-pyrrol-2-one384802-78-2C26H32N2O4
- (E)-[1-[2-(Diethylazaniumyl)ethyl]-4,5-dioxo-2-(4-propan-2-yloxyphenyl)pyrrolidin-3-ylidene]-phenylmethanolate613220-23-8C26H32N2O4
- 3,3'-[Benzene-1,4-diylbis(oxy)]bis{1-[(4-methylphenyl)amino]propan-2-ol}300588-11-8C26H32N2O4
- 4-Benzoyl-1-(2-(diethylamino)ethyl)-3-hydroxy-5-(4-propoxyphenyl)-1H-pyrrol-2(5H)-one615271-02-8C26H32N2O4
- Dibenzyl 4,4'-bipiperidine-1,1'-dicarboxylate1627934-02-4C26H32N2O4
- 1-[3-(Dimethylamino)propyl]-4-(4-ethoxy-3-methylbenzoyl)-3-hydroxy-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-one432009-56-8C26H32N2O4
- 1-[3-(Dimethylamino)propyl]-4-(4-ethoxy-2-methylbenzoyl)-3-hydroxy-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-one440085-90-5C26H32N2O4
- 1-[3-(Dimethylamino)propyl]-5-(4-ethylphenyl)-3-hydroxy-4-[(4-methoxy-2-methylphenyl)carbonyl]-1,5-dihydro-2H-pyrrol-2-one488796-67-4C26H32N2O4
- 3,4,5-Triethoxy-N-(6,7,8,9-tetrahydro-5H-carbazol-3-ylmethyl)benzamide852138-27-3C26H32N2O4
- 1-[3-(Dimethylamino)propyl]-3-hydroxy-4-[(2-methyl-4-propoxyphenyl)carbonyl]-5-phenyl-1,5-dihydro-2H-pyrrol-2-one519013-50-4C26H32N2O4
- (4E)-1-[3-(Dimethylamino)propyl]-4-{hydroxy[2-methyl-4-(propan-2-yloxy)phenyl]methylidene}-5-phenylpyrrolidine-2,3-dione383902-95-2C26H32N2O4
- (4E)-1-[3-(Dimethylamino)propyl]-4-{hydroxy[3-methyl-4-(propan-2-yloxy)phenyl]methylidene}-5-phenylpyrrolidine-2,3-dione371232-34-7C26H32N2O4
- 1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-(3-methyl-4-propoxybenzoyl)-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-one440092-84-2C26H32N2O4
- 1-[2-(Dimethylamino)ethyl]-3-hydroxy-4-(2-methyl-4-propoxybenzoyl)-5-(4-methylphenyl)-2,5-dihydro-1H-pyrrol-2-one440086-51-1C26H32N2O4
- N-((1-(2-Phenoxyacetyl)piperidin-4-yl)methyl)-4-phenyltetrahydro-2H-pyran-4-carboxamide1235147-64-4C26H32N2O4
- 1-Ethyl-3-[(1-ethyl-4-hydroxy-6-methyl-2-oxo-1,2-dihydropyridin-3-yl)[4-(propan-2-yl)phenyl]methyl]-4-hydroxy-6-methyl-1,2-dihydropyridin-2-one883089-05-2C26H32N2O4
- 1,1'-(m-Phenylenebis(methyleneimino))bis(3-phenoxypropan-2-ol)85187-40-2C26H32N2O4
- tert-Butyl (1-(2-(benzyloxy)-4-vinylbenzoyl)piperidin-3-yl)carbamate3078427-21-8C26H32N2O4
- 1-Oxa-3,8-diazaspiro(4.5)decan-2-one, 3-(2-(3,4-dimethoxyphenyl)ethyl)-4-methylene-8-(2-phenylethyl)-134069-77-5C26H32N2O4
- 1-(3-(Dimethylamino)propyl)-3-hydroxy-4-(4-methylbenzoyl)-5-(3-propoxyphenyl)-1H-pyrrol-2(5H)-one615270-82-1C26H32N2O4
- N-(2-Methoxybenzyl)-2'-(2-methoxyethyl)-1'-oxo-1',4'-dihydro-2'H-spiro[cyclohexane-1,3'-isoquinoline]-4'-carboxamide1212436-51-5C26H32N2O4
- 1-[[[4-(4-Morpholinylmethyl)phenyl]carbonyl]amino]cyclohexanecarboxylic acid phenylmethyl ester944282-12-6C26H32N2O4
- tert-Butyl 4-(4-(((benzyloxy)carbonyl)amino)-3-ethylphenyl)-5,6-dihydropyridine-1(2H)-carboxylate1393653-63-8C26H32N2O4
- 1-[3-(Dimethylamino)propyl]-3-hydroxy-4-(2-methyl-4-propoxybenzoyl)-5-phenyl-2,5-dihydro-1H-pyrrol-2-oneC26H32N2O4
- 1-[3-(Dimethylamino)propyl]-5-(4-ethylphenyl)-3-hydroxy-4-(4-methoxy-2-methylbenzoyl)-2,5-dihydro-1H-pyrrol-2-oneC26H32N2O4
- Piperazine, 1-phenyl-4-((6,7,8,9-tetrahydro-5H-benzocyclohepten-2-yl)methyl)-, (Z)-2-butenedioate (1:1)55037-63-3C26H32N2O4
- b2cHCaAdCP2227142-01-8C26H32N2O4
- 1-[3-(Dimethylamino)propyl]-4-[(4-ethoxy-2-methylphenyl)-hydroxymethylidene]-5-(4-methylphenyl)pyrrolidine-2,3-dioneC26H32N2O4
- 1-(3-(Dimethylamino)propyl)-3-hydroxy-4-(4-isobutoxybenzoyl)-5-phenyl-1H-pyrrol-2(5H)-one847163-00-2C26H32N2O4
- 1-(2-(Dimethylamino)ethyl)-3-hydroxy-4-(4-isobutoxybenzoyl)-5-(p-tolyl)-1H-pyrrol-2(5H)-one847178-99-8C26H32N2O4
- 1H-Indole, 2,3-dihydro-3-methyl-3-phenyl-1-(2-piperidinoethyl)-, fumarate (1:1)37126-29-7C26H32N2O4
- 8-Benzyl-4-(4-tert-butylbenzoyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid1326809-98-6C26H32N2O4
- 9X9Vnd66J51644669-36-2C26H32N2O4
- 4,4'-[Decane-1,10-diylbis(oxy)]bis(3-methoxybenzonitrile)917981-04-5C26H32N2O4
- tert-Butyl 2-(([1,1'-biphenyl]-2-ylcarbamoyl)oxy)-7-azaspiro[3.5]nonane-7-carboxylate2043072-34-8C26H32N2O4
- 3-Phenyl-9-[(pyridin-4-yl)methyl]-4H,8H,9H,10H-chromeno[8,7-e][1,3]oxazin-4-one, propan-2-ol1351643-16-7C26H32N2O4
- 1-tert-Butyl-4-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]piperidine-4-carboxylic acid2138375-98-9C26H32N2O4
- tert-Butyl 3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propyl]azetidine-1-carboxylate2680693-51-8C26H32N2O4
- (9H-Fluoren-9-yl)methyl N-[1-(4-hydroxypiperidin-1-yl)-4-methyl-1-oxopentan-2-yl]carbamate2763908-74-1C26H32N2O4
- tert-Butyl (1-(2-(benzyloxy)-4-vinylbenzoyl)piperidin-4-yl)carbamate3078433-83-4C26H32N2O4
- 1-[3-[2-[(E)-2-(4-Butoxyphenyl)ethenyl]-4,6-dimethoxyphenyl]-5-methyl-3,4-dihydropyrazol-2-yl]ethanone3052257-09-4C26H32N2O4
- 1-[3-(Dimethylamino)propyl]-3-hydroxy-4-[2-methyl-4-(propan-2-yloxy)benzoyl]-5-phenyl-2,5-dihydro-1H-pyrrol-2-oneC26H32N2O4
- 1-[3-(Dimethylamino)propyl]-3-hydroxy-4-[4-(2-methylpropoxy)benzoyl]-5-phenyl-2,5-dihydro-1H-pyrrol-2-oneC26H32N2O4
- 1-[3-(Dimethylamino)propyl]-3-hydroxy-4-[3-methyl-4-(propan-2-yloxy)benzoyl]-5-phenyl-2,5-dihydro-1H-pyrrol-2-oneC26H32N2O4
- 1-[2-(Dimethylamino)ethyl]-3-hydroxy-5-(4-methylphenyl)-4-[4-(2-methylpropoxy)benzoyl]-2,5-dihydro-1H-pyrrol-2-oneC26H32N2O4
- 1-[3-(Dimethylamino)propyl]-4-[hydroxy-(4-methoxyphenyl)methylidene]-5-(4-propan-2-ylphenyl)pyrrolidine-2,3-dioneC26H32N2O4
- 1-[2-(Dimethylamino)ethyl]-4-[hydroxy-(3-methyl-4-propoxyphenyl)methylidene]-5-(4-methylphenyl)pyrrolidine-2,3-dioneC26H32N2O4
- 1-[2-(Dimethylamino)ethyl]-4-[hydroxy-(2-methyl-4-propoxyphenyl)methylidene]-5-(4-methylphenyl)pyrrolidine-2,3-dioneC26H32N2O4
Frequently asked questions
What is the molar mass of C26H32N2O4?
The molar mass of C26H32N2O4 is 436.55 g/mol, calculated from standard atomic weights for 26 carbon atoms, 32 hydrogen atoms, 2 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 436.2362 Da.
How many compounds have the formula C26H32N2O4?
CompoundList lists 81 compounds with the molecular formula C26H32N2O4, including 2,6-Dicyclohexyloctahydro-4,8-ethenopyrrolo[3',4':3,4]cyclobuta[1,2-f]isoindole-1,3,5,7(2H,6H)-tetrone, SB-423562, (2Z)-2-(4-tert-Butylbenzylidene)-6-hydroxy-7-{[4-(2-hydroxyethyl)piperazin-1-yl]methyl}-1-benzofuran-3(2H)-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 C26H32N2O4?
C26H32N2O4 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.