Molecular formula
C23H29N3O4
100 compounds have this formula on CompoundList.
- Molar mass
- 411.50g/mol
- Monoisotopic mass
- 411.2158Da
- Atoms
- 59
- Elements
- 4
- Rings plus double bonds
- 11
The formula C23H29N3O4 describes a molecule made of 23 carbon atoms, 29 hydrogen atoms, 3 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 × 2367.13%12.011 × 23 = 276.253 g/mol
- H Hydrogen × 297.10%1.008 × 29 = 29.232 g/mol
- N Nitrogen × 310.21%14.007 × 3 = 42.021 g/mol
- O Oxygen × 415.55%15.999 × 4 = 63.996 g/mol
Look up another formula
Compounds with the formula C23H29N3O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 100 compounds
Carbobenzyloxy-L-phenylalanyl-L-leucinamide
CAS 13171-94-3C23H29N3O4
![N-[1-(Cyclopentylcarbamoyl)cyclohexyl]-N-(furan-2-ylmethyl)-6-oxo-1H-pyridine-3-carboxamide chemical structure, C23H29N3O4, CAS 764712-64-3](/s/RRJIRTWOFIYMHL-UHFFFAOYSA-N.svg)
N-[1-(Cyclopentylcarbamoyl)cyclohexyl]-N-(furan-2-ylmethyl)-6-oxo-1H-pyridine-3-carboxamide
CAS 764712-64-3C23H29N3O4
HX-CH 44BS
CAS 95893-19-9C23H29N3O4
![N-Cyclopentyl-2-({4-oxo-6-[(4-phenylpiperazin-1-yl)methyl]-4H-pyran-3-yl}oxy)acetamide chemical structure, C23H29N3O4, CAS 898456-48-9](/s/YNFJTAGXVOJZOC-UHFFFAOYSA-N.svg)
N-Cyclopentyl-2-({4-oxo-6-[(4-phenylpiperazin-1-yl)methyl]-4H-pyran-3-yl}oxy)acetamide
CAS 898456-48-9C23H29N3O4
N-(2-(2-(4-Butoxybenzylidene)hydrazino)-2-oxoethyl)-4-propoxybenzamide
CAS 765296-64-8C23H29N3O4
Carbobenzyloxy-L-isoleucyl-L-phenylalaninamide
CAS 102638-70-0C23H29N3O4
Carbobenzyloxyphenylalanylisoleucinamide
CAS 69193-12-0C23H29N3O4
KF 4307
CAS 74178-99-7C23H29N3O4
![5,5-Dimethyl-2-[({2-[4-(3-oxo-1,3-dihydro-2-benzofuran-1-yl)-1-piperazinyl]ethyl}amino)methylene]-1,3-cyclohexanedione chemical structure, C23H29N3O4, CAS 523991-51-7](/s/SVPXWKMOPZVJMD-UHFFFAOYSA-N.svg)
5,5-Dimethyl-2-[({2-[4-(3-oxo-1,3-dihydro-2-benzofuran-1-yl)-1-piperazinyl]ethyl}amino)methylene]-1,3-cyclohexanedione
CAS 523991-51-7C23H29N3O4
3-(3-(4-Methoxyphenethyl)ureido)cyclohexyl phenylcarbamate
CAS 1351609-21-6C23H29N3O4
Phe-Val-Phe
CAS 64533-12-6C23H29N3O4
![N-(2-(7-(Benzyloxy)-1,8-dioxo-3,4-dihydro-1H-pyrido[1,2-a]pyrazin-2(8H)-yl)ethyl)-2-ethylbutanamide chemical structure, C23H29N3O4, CAS 1040634-03-4](/s/NFYLJIRVBSDNMJ-UHFFFAOYSA-N.svg)
N-(2-(7-(Benzyloxy)-1,8-dioxo-3,4-dihydro-1H-pyrido[1,2-a]pyrazin-2(8H)-yl)ethyl)-2-ethylbutanamide
CAS 1040634-03-4C23H29N3O4
![4-tert-Butyl-N-(2-{7-ethoxy-1,8-dioxo-1H,2H,3H,4H,8H-pyrido[1,2-a]pyrazin-2-yl}ethyl)benzamide chemical structure, C23H29N3O4, CAS 1091013-82-9](/s/GTKXQDHGMPYVOI-UHFFFAOYSA-N.svg)
4-tert-Butyl-N-(2-{7-ethoxy-1,8-dioxo-1H,2H,3H,4H,8H-pyrido[1,2-a]pyrazin-2-yl}ethyl)benzamide
CAS 1091013-82-9C23H29N3O4
![Methyl 3-[(3-ethoxybenzoyl)amino]-4-(4-ethylpiperazin-1-yl)benzoate chemical structure, C23H29N3O4, CAS 767300-12-9](/s/ZAXAJRRCVLLZRO-UHFFFAOYSA-N.svg)
Methyl 3-[(3-ethoxybenzoyl)amino]-4-(4-ethylpiperazin-1-yl)benzoate
CAS 767300-12-9C23H29N3O4
N1-((1-benzylpiperidin-4-yl)methyl)-N2-(2,5-dimethoxyphenyl)oxalamide
CAS 953248-94-7C23H29N3O4
N1-(2-methoxy-5-methylphenyl)-N2-(3-(2-phenylmorpholino)propyl)oxalamide
CAS 954026-13-2C23H29N3O4
![tert-Butyl N-[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]carbamate chemical structure, C23H29N3O4, CAS 33900-18-4](/s/LRRMIZSGLAPKAB-OALUTQOASA-N.svg)
tert-Butyl N-[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]carbamate
CAS 33900-18-4C23H29N3O4
![tert-Butyl 3-[(8S)-2-ethyl-4,7-dioxo-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate chemical structure, C23H29N3O4, CAS 211359-78-3](/s/MSEKYFBUODOFAK-ABHNRTSZSA-N.svg)
tert-Butyl 3-[(8S)-2-ethyl-4,7-dioxo-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate
CAS 211359-78-3C23H29N3O4
![5-[3-(4-Benzylpiperazin-1-yl)-2-hydroxypropyl]-1,1-dimethyl-1H,5H-furo[3,4-c]pyridine-3,4-dione chemical structure, C23H29N3O4, CAS 1379522-26-5](/s/GTZOIAQAAJGEHL-UHFFFAOYSA-N.svg)
5-[3-(4-Benzylpiperazin-1-yl)-2-hydroxypropyl]-1,1-dimethyl-1H,5H-furo[3,4-c]pyridine-3,4-dione
CAS 1379522-26-5C23H29N3O4
![[{2-[(1-Benzylpiperidin-4-yl)amino]-2-oxoethyl}-(4-methoxyphenyl)amino]acetic acid chemical structure, C23H29N3O4, CAS 1142204-57-6](/s/NTUSNIXSZKBLPI-UHFFFAOYSA-N.svg)
[{2-[(1-Benzylpiperidin-4-yl)amino]-2-oxoethyl}-(4-methoxyphenyl)amino]acetic acid
CAS 1142204-57-6C23H29N3O4
![3,4-Dimethoxy-N-[4-[4-(2-methylpropanoyl)piperazin-1-yl]phenyl]benzamide chemical structure, C23H29N3O4, CAS 838818-46-5](/s/SXLZDOFCLUQQMM-UHFFFAOYSA-N.svg)
3,4-Dimethoxy-N-[4-[4-(2-methylpropanoyl)piperazin-1-yl]phenyl]benzamide
CAS 838818-46-5C23H29N3O4
Benzamide, 2-hydroxy-5-(5-(4-(2-methoxyphenyl)-1-piperazinyl)-1-oxopentyl)-
CAS 100077-79-0C23H29N3O4
![3,5-Dimethoxy-N-[2-[4-(2-methylpropanoyl)piperazin-1-yl]phenyl]benzamide chemical structure, C23H29N3O4, CAS 792947-34-3](/s/KHESESKGTWXGQK-UHFFFAOYSA-N.svg)
3,5-Dimethoxy-N-[2-[4-(2-methylpropanoyl)piperazin-1-yl]phenyl]benzamide
CAS 792947-34-3C23H29N3O4
![Methyl 4-(4-methylpiperazin-1-yl)-3-[(4-propan-2-yloxybenzoyl)amino]benzoate chemical structure, C23H29N3O4, CAS 898695-75-5](/s/BKJCSGHYZMEIEW-UHFFFAOYSA-N.svg)
Methyl 4-(4-methylpiperazin-1-yl)-3-[(4-propan-2-yloxybenzoyl)amino]benzoate
CAS 898695-75-5C23H29N3O4
- Methyl 4-(4-ethylpiperazin-1-yl)-3-{[(3-methylphenoxy)acetyl]amino}benzoate765920-33-0C23H29N3O4
- 1-(4-Butoxyphenyl)-3-[1-(2-methoxyacetyl)-1,2,3,4-tetrahydroquinolin-7-yl]urea1203347-37-8C23H29N3O4
- 3-[3,3-Dimethyl-5-(2-methylpropyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepin-8-yl]-1-(4-methoxyphenyl)urea1170217-26-1C23H29N3O4
- 5-Cyclopropyl-N-(5-isopentyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-7-yl)isoxazole-3-carboxamide1396862-59-1C23H29N3O4
- 1-(3-((3-Cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)piperidin-1-yl)-2-((2,2-dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)ethanone1705547-58-5C23H29N3O4
- 4-[Cyclopropyl-(4-oxazol-4-yl-benzoyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester1578188-78-9C23H29N3O4
- Methyl 4-(4-methylpiperazin-1-yl)-3-[(4-propoxybenzoyl)amino]benzoate890178-91-3C23H29N3O4
- 5-(2-Oxo-2-piperidin-1-ylethoxy)-2-[(4-phenylpiperazin-1-yl)methyl]pyran-4-one898464-81-8C23H29N3O4
- 1-(5-Ethyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3-(4-methoxyphenethyl)urea1170911-57-5C23H29N3O4
- 2-(3-Cyclohexyl-2,4-dioxo-2,3,4,5,6,7-hexahydro-1H-cyclopenta[d]pyrimidin-1-yl)-N-(2-methoxy-5-methylphenyl)acetamide1018156-58-5C23H29N3O4
- N-(3-(1H-Pyrrolo[2,3-b]pyridin-1-yl)propyl)-3,4,5-triethoxybenzamide1795441-45-0C23H29N3O4
- E3 Ligase Ligand-linker Conjugate 1092911613-55-1C23H29N3O4
- n-Cyclohexyl-N-(cyclohexylcarbamoyl)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)acetamide6475-17-8C23H29N3O4
- N-[4-(4-Butanoylpiperazin-1-yl)phenyl]-2-(4-methoxyphenoxy)acetamide876885-57-3C23H29N3O4
- 1-(3,5-Dimethylpiperidin-1-yl)-2-[1-(2-morpholin-4-yl-2-oxoethyl)indol-3-yl]ethane-1,2-dione872855-22-6C23H29N3O4
- Methyl 4-(4-ethylpiperazin-1-yl)-3-{[(4-methylphenoxy)acetyl]amino}benzoate765920-01-2C23H29N3O4
- Z-Leu-phe-NH213171-96-5C23H29N3O4
- N1-(4-methoxybenzyl)-N2-(2-morpholino-2-(p-tolyl)ethyl)oxalamide941976-22-3C23H29N3O4
- N1-(2-methoxybenzyl)-N2-(2-morpholino-2-(p-tolyl)ethyl)oxalamide941976-26-7C23H29N3O4
- N1-(2-(3-methoxyphenyl)-2-morpholinoethyl)-N2-(4-methylbenzyl)oxalamide941870-99-1C23H29N3O4
- N1-(2-(4-methoxyphenyl)-2-morpholinoethyl)-N2-(4-methylbenzyl)oxalamide941976-80-3C23H29N3O4
- [{2-[4-(2,5-Dimethylphenyl)piperazin-1-yl]-2-oxoethyl}(4-methoxyphenyl)amino]acetic acid1142205-53-5C23H29N3O4
- 3-(4-Methoxyphenyl)-N-(2-{[4-(2-methylpropanamido)phenyl]formamido}ethyl)propanamide1021219-68-0C23H29N3O4
- 1-(3,4-Dimethoxybenzyl)-3-(1-isobutyryl-1,2,3,4-tetrahydroquinolin-7-yl)urea1203132-59-5C23H29N3O4
- 1-(2,3-Dimethoxyphenyl)-3-(1-isopentyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)urea1171536-22-3C23H29N3O4
- 1-(3,4-Dimethoxyphenyl)-3-(1-isopentyl-2-oxo-1,2,3,4-tetrahydroquinolin-6-yl)urea1170805-85-2C23H29N3O4
- N-(5-(Azepane-1-carbonyl)-1-methyl-2-oxo-1,2-dihydropyridin-3-yl)-4-isopropoxybenzamide1203129-70-7C23H29N3O4
- 4-[Cyclopropyl[4-(5-isoxazolyl)benzoyl]amino]-1-piperidinecarboxylic acid 1,1-dimethylethyl ester1578189-02-2C23H29N3O4
- 2-((2,2-Dimethyl-2,3-dihydrobenzofuran-7-yl)oxy)-1-(4-((2,6-dimethylpyrimidin-4-yl)oxy)piperidin-1-yl)ethanone2034395-91-8C23H29N3O4
- 2-(4-(2-(Isopropylamino)ethoxy)-3,5-dimethylphenyl)-5,7-dimethoxyquinazolin-4(3H)-one1253733-17-3C23H29N3O4
- 2-Butyl-9b-(1-butyl-2,5-dioxopyrrolidin-3-yl)-4,5-dihydro-3aH-pyrrolo[3,4-f]quinoline-1,3-dione40120-07-8C23H29N3O4
- 1-(2,6-Dimethylpiperidin-1-yl)-2-[1-(2-morpholin-4-yl-2-oxoethyl)indol-3-yl]ethane-1,2-dione872855-21-5C23H29N3O4
- N-Cycloheptyl-2-(1-(2-morpholino-2-oxoethyl)-1H-indol-3-yl)-2-oxoacetamide872855-65-7C23H29N3O4
- N-Cyclohexyl-N-methyl-2-(1-(2-morpholino-2-oxoethyl)-1H-indol-3-yl)-2-oxoacetamide872855-04-4C23H29N3O4
- 2-[(4-Benzylpiperazin-1-yl)methyl]-5-[2-oxo-2-(pyrrolidin-1-yl)ethoxy]-4H-pyran-4-one898464-73-8C23H29N3O4
- 2-(1-(2-(Azepan-1-yl)-2-oxoethyl)-1H-indol-3-yl)-2-oxo-N-((tetrahydrofuran-2-yl)methyl)acetamide894001-37-7C23H29N3O4
- 1-(2-Ethylpiperidin-1-yl)-2-(1-(2-morpholino-2-oxoethyl)-1H-indol-3-yl)ethane-1,2-dione872855-17-9C23H29N3O4
- N1-(2,5-dimethoxyphenyl)-N2-(2-(1-ethyl-1,2,3,4-tetrahydroquinolin-6-yl)ethyl)oxalamide955609-73-1C23H29N3O4
- N1-(2,4-dimethoxyphenyl)-N2-(2-(1-ethyl-1,2,3,4-tetrahydroquinolin-6-yl)ethyl)oxalamide955610-13-6C23H29N3O4
- N1-(3,4-dimethoxyphenyl)-N2-(2-(1-ethyl-1,2,3,4-tetrahydroquinolin-6-yl)ethyl)oxalamide955531-46-1C23H29N3O4
- 1-((1-(4-Ethoxyphenyl)-5-oxopyrrolidin-3-yl)methyl)-3-(4-methoxyphenethyl)urea954610-99-2C23H29N3O4
- N-(2-Methylcyclohexyl)-2-(1-(2-morpholino-2-oxoethyl)-1H-indol-3-yl)-2-oxoacetamide872856-84-3C23H29N3O4
- 1-(2,6-Dimethylmorpholino)-2-(1-(2-oxo-2-(piperidin-1-yl)ethyl)-1H-indol-3-yl)ethane-1,2-dione872860-79-2C23H29N3O4
- 1-(1-(3,4-Dimethylphenyl)-5-oxopyrrolidin-3-yl)-3-(3-ethoxy-4-methoxybenzyl)urea894009-72-4C23H29N3O4
- N-(4-Methyl-3-nitrophenyl)-1-(tricyclo[3.3.1.1~3,7~]decane-1-carbonyl)prolinamide1092733-38-4C23H29N3O4
- N-(4-Acetylphenyl)-2-(5-methoxy-2-((4-methylpiperidin-1-yl)methyl)-4-oxopyridin-1(4H)-yl)acetamide921471-23-0C23H29N3O4
- Spiro(piperidine-4,4'(1'H)-quinazolin)-2'(3'H)-one, 1-(2-(3,4-dimethoxyphenyl)-2-hydroxyethyl)-3'-methyl-85732-33-8C23H29N3O4
- Methyl 3-(3-isopropoxybenzamido)-4-(4-methylpiperazin-1-yl)benzoate886634-54-4C23H29N3O4
- 1-(3,4-Dimethoxyphenethyl)-3-(1-(3,4-dimethylphenyl)-5-oxopyrrolidin-3-yl)urea894005-62-0C23H29N3O4
- 1-(5-Isobutyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3-(3-methoxyphenyl)urea1171610-60-8C23H29N3O4
- 4-Isopropoxy-N-((1-(1-methyl-2-oxo-1,2-dihydropyridine-3-carbonyl)piperidin-4-yl)methyl)benzamide1234857-02-3C23H29N3O4
- Ethyl 4-[[6-(4-hydroxy-1-piperidyl)-3-methyl-pyridine-2-carbonyl]amino]-3,5-dimethyl-benzoate1529760-70-0C23H29N3O4
- 6-tert-Butyl-2-{[1-(2,3-dihydro-1,4-benzodioxine-5-carbonyl)piperidin-4-yl]methyl}-2,3-dihydropyridazin-3-one2097890-32-7C23H29N3O4
- tert-Butyl (3R,5R)-3-(4-methoxyphenyl)-5-(pyridine-2-amido)piperidine-1-carboxylate2363802-59-7C23H29N3O4
- N-[(E)-Benzylideneamino]-2-[2-nitro-4-(2,4,4-trimethylpentan-2-yl)phenoxy]acetamide330965-37-2C23H29N3O4
- N-(tert-Butoxycarbonyl)-L-phenylalanyl-D-phenylalaninamide82653-02-9C23H29N3O4
- 2-Methoxy-3-methyl-N-[2-({[3-(4-morpholinyl)propyl]amino}carbonyl)phenyl]benzamide947824-79-5C23H29N3O4
- 1-(2-((2-Cyano-3-(4-(diethylamino)phenyl)-1-oxoallyl)oxy)ethyl)-1-methyl-1Himidazolium acetate86014-84-8C23H29N3O4
- Benzyl ((S)-1-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)amino)-4-methyl-1-oxopentan-2-yl)carbamateC23H29N3O4
- 2-{[1-(3,5-Dimethoxybenzoyl)piperidin-4-yl]methyl}-2,3,5,6,7,8-hexahydrocinnolin-3-one2320456-87-7C23H29N3O4
- 2-{[1-(2,4-Dimethoxybenzoyl)piperidin-4-yl]methyl}-2,3,5,6,7,8-hexahydrocinnolin-3-one2309571-93-3C23H29N3O4
- 2-{[1-(2,5-Dimethoxybenzoyl)piperidin-4-yl]methyl}-2,3,5,6,7,8-hexahydrocinnolin-3-one2309188-00-7C23H29N3O4
- 3-tert-Butyl-6-{[1-(2,3-dihydro-1,4-benzodioxine-5-carbonyl)piperidin-4-yl]methoxy}pyridazine2320466-20-2C23H29N3O4
- 3-tert-Butyl-6-{[1-(2,3-dihydro-1,4-benzodioxine-2-carbonyl)piperidin-4-yl]methoxy}pyridazine2320887-41-8C23H29N3O4
- 3-{1-[4-Phenyl-1-(prop-2-enoyl)piperidine-4-carbonyl]piperidin-4-yl}-1,3-oxazolidin-2-one2411254-70-9C23H29N3O4
- tert-Butyl (2-(6-(butylamino)-1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)ethyl)carbamate440666-06-8C23H29N3O4
- (1S,2R)-2-(Methylamino)-1-phenylpropan-1-ol (R)-1-((benzyloxy)carbonyl)hexahydropyridazine-3-carboxylate72173-00-3C23H29N3O4
- 3-((9,10-Dihydro-4-(methylamino)-9,10-dioxo-1-anthryl)aminopropyl)trimethylammonium acetate85187-76-4C23H29N3O4
- 1-(3-{[(6-tert-Butylpyridazin-3-yl)oxy]methyl}pyrrolidin-1-yl)-2-(2,3-dihydro-1,4-benzodioxin-2-yl)ethan-1-one2548980-09-0C23H29N3O4
- Benzyl 2'-cyclopentyl-7'-hydroxy-6',7'-dihydro-2'H-spiro[piperidine-4,5'-pyrano[3,2-c]pyrazole]-1-carboxylate2680797-81-1C23H29N3O4
- 2-{[(Benzyloxy)carbonyl]amino}-4-[4-(2-methylpropyl)piperazin-1-yl]benzoic acid2138093-62-4C23H29N3O4
- tert-Butyl 5-(((benzyloxy)carbonyl)(cyclopropyl)amino)-4,5,6,7-tetrahydro-1H-indazole-1-carboxylate1431311-73-7C23H29N3O4
- 1-[4-(5,6-Dimethoxyisoindolin-2-yl)butyl]-3-(2-hydroxyethyl)-1,3-dihydro-2H-benzo[d]imidazol-2-one2860554-35-2C23H29N3O4
- Cbz-D-Leu-D-Phe-NH2C23H29N3O4
- tert-Butyl 4-[4-[(4-hydroxy-2-methylbenzoyl)amino]phenyl]piperazine-1-carboxylate1435934-07-8C23H29N3O4
- Methyl (R)-2-((S)-2-(3-benzylureido)-4-methylpentanamido)-2-phenylacetate2873472-19-4C23H29N3O4
Frequently asked questions
What is the molar mass of C23H29N3O4?
The molar mass of C23H29N3O4 is 411.50 g/mol, calculated from standard atomic weights for 23 carbon atoms, 29 hydrogen atoms, 3 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 411.2158 Da.
How many compounds have the formula C23H29N3O4?
CompoundList lists 100 compounds with the molecular formula C23H29N3O4, including Carbobenzyloxy-L-phenylalanyl-L-leucinamide, N-[1-(Cyclopentylcarbamoyl)cyclohexyl]-N-(furan-2-ylmethyl)-6-oxo-1H-pyridine-3-carboxamide, HX-CH 44BS. 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 C23H29N3O4?
C23H29N3O4 has a degree of unsaturation of 11. 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.