Molecular formula
C16H21N3O3
387 compounds have this formula on CompoundList.
- Molar mass
- 303.36g/mol
- Monoisotopic mass
- 309.1960Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 8
The formula C16H21N3O3 describes a molecule made of 16 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 3 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 × 1663.35%12.011 × 16 = 192.176 g/mol
- H Hydrogen × 216.98%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 313.85%14.007 × 3 = 42.021 g/mol
- O Oxygen × 315.82%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C16H21N3O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 387 compounds
Ethyl 4-(5-methyl-2-oxo-1-benzimidazolinyl)piperidine-1-carboxylate
CAS 107618-36-0C16H21N3O3
![5-([4-(4-Methoxyphenyl)piperazin-1-yl]carbonyl)pyrrolidin-2-one chemical structure, C16H21N3O3, CAS 110957-23-8](/s/IHFMEPWMGSZTAK-UHFFFAOYSA-N.svg)
5-([4-(4-Methoxyphenyl)piperazin-1-yl]carbonyl)pyrrolidin-2-one
CAS 110957-23-8C16H21N3O3
![1-[4-(Acetylamino)phenyl]-5-oxo-N-propylpyrrolidine-3-carboxamide chemical structure, C16H21N3O3, CAS 905180-81-6](/s/JRLKSSIAGCNEAL-UHFFFAOYSA-N.svg)
1-[4-(Acetylamino)phenyl]-5-oxo-N-propylpyrrolidine-3-carboxamide
CAS 905180-81-6C16H21N3O3
![tert-Butyl {2-[(1H-indol-2-ylcarbonyl)amino]ethyl}carbamate chemical structure, C16H21N3O3, CAS 944457-98-1](/s/CYPGGDDMLJSQOA-UHFFFAOYSA-N.svg)
tert-Butyl {2-[(1H-indol-2-ylcarbonyl)amino]ethyl}carbamate
CAS 944457-98-1C16H21N3O3
N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-4-(prop-2-en-1-yl)piperazine-1-carboxamide
CAS 895971-19-4C16H21N3O3
![tert-Butyl N-[2-(1H-indole-3-carbonylamino)ethyl]carbamate chemical structure, C16H21N3O3, CAS 951971-65-6](/s/MXNWVODSPFXQCZ-UHFFFAOYSA-N.svg)
tert-Butyl N-[2-(1H-indole-3-carbonylamino)ethyl]carbamate
CAS 951971-65-6C16H21N3O3
4-((2-Cyanophenyl)amino)-4-oxo-2-(pentylamino)butanoic acid
CAS 1047678-65-8C16H21N3O3
![N-[(1-Ethylpyrrolidin-2-yl)methyl]-3-hydroxy-2H-1,4-benzoxazine-6-carboxamide chemical structure, C16H21N3O3, CAS 1574377-83-5](/s/ZHGBYNMFDXFEKH-UHFFFAOYSA-N.svg)
N-[(1-Ethylpyrrolidin-2-yl)methyl]-3-hydroxy-2H-1,4-benzoxazine-6-carboxamide
CAS 1574377-83-5C16H21N3O3
![4-(1-Methyl-5-morpholino-1H-benzo[d]imidazol-2-yl)butanoic acid chemical structure, C16H21N3O3, CAS 1228552-02-0](/s/SEJQBOGHXQJRBF-UHFFFAOYSA-N.svg)
4-(1-Methyl-5-morpholino-1H-benzo[d]imidazol-2-yl)butanoic acid
CAS 1228552-02-0C16H21N3O3
![5-{4-[(6-Methylpyridin-2-yl)oxy]piperidine-1-carbonyl}pyrrolidin-2-one chemical structure, C16H21N3O3, CAS 1796907-91-9](/s/NCFHHGQTVSSPTE-UHFFFAOYSA-N.svg)
5-{4-[(6-Methylpyridin-2-yl)oxy]piperidine-1-carbonyl}pyrrolidin-2-one
CAS 1796907-91-9C16H21N3O3
Ethyl 5-amino-3-ethyl-1-(2-hydroxy-2-phenylethyl)-1H-pyrazole-4-carboxylate
CAS 1638612-77-7C16H21N3O3
2,5-Dimethyl-N-(1-((tetrahydro-2H-pyran-4-yl)methyl)-1H-pyrazol-4-yl)furan-3-carboxamide
CAS 1705344-97-3C16H21N3O3
Cyclohex-3-en-1-yl(3-((3-methoxypyrazin-2-yl)oxy)pyrrolidin-1-yl)methanone
CAS 2034254-20-9C16H21N3O3
![3-[4-(4-Methyl-1-piperazinyl)phenoxy]-2,6-piperidinedione chemical structure, C16H21N3O3, CAS 2259851-82-4](/s/QTIPLBDVENQJQE-UHFFFAOYSA-N.svg)
3-[4-(4-Methyl-1-piperazinyl)phenoxy]-2,6-piperidinedione
CAS 2259851-82-4C16H21N3O3
5-(4-(Diethylamino)phenyl)-5-ethylbarbituric acid
CAS 3038-25-3C16H21N3O3
4-(3-Methyl-1,4-dioxophthalazin-2-yl)-N-propan-2-ylbutanamide
CAS 64377-91-9C16H21N3O3
![N-(3-Methoxypropyl)-3-[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]propanamide chemical structure, C16H21N3O3, CAS 832683-98-4](/s/FBSLFXNOCXPRSK-UHFFFAOYSA-N.svg)
N-(3-Methoxypropyl)-3-[3-(2-methylphenyl)-1,2,4-oxadiazol-5-yl]propanamide
CAS 832683-98-4C16H21N3O3
![N-[2-(3,4-Dimethoxyphenyl)ethyl]-1-ethylpyrazole-3-carboxamide chemical structure, C16H21N3O3, CAS 957510-76-8](/s/SAQKQYOYGVOOEJ-UHFFFAOYSA-N.svg)
N-[2-(3,4-Dimethoxyphenyl)ethyl]-1-ethylpyrazole-3-carboxamide
CAS 957510-76-8C16H21N3O3
N-(3,5-Dimethylphenyl)-2-(4-ethyl-2,3-dioxopiperazin-1-yl)acetamide
CAS 868680-37-9C16H21N3O3
N1-(1-isobutyryl-1,2,3,4-tetrahydroquinolin-7-yl)-N2-methyloxalamide
CAS 941983-57-9C16H21N3O3
N1-isopropyl-N2-(3-(2-oxopiperidin-1-yl)phenyl)oxalamide
CAS 941982-78-1C16H21N3O3
N1-isobutyl-N2-(3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide
CAS 941890-50-2C16H21N3O3
N1-butyl-N2-(3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide
CAS 941921-07-9C16H21N3O3
1-Ethoxycarbonyl-4-(1,3-dihydro-7-methyl-2H-benzimidazol-2-on-1-yl)piperidine
CAS 356072-53-2C16H21N3O3
- tert-Butyl 4-(2-cyanopyridin-4-yloxy)piperidine-1-carboxylate380610-67-3C16H21N3O3
- N-(1-Isopropyl-3-methyl-1H-pyrazol-5-yl)-3,4-dimethoxybenzamide1172382-74-9C16H21N3O3
- 1-(4-(5-(Furan-2-yl)-1,3,4-oxadiazol-2-yl)piperidin-1-yl)-2,2-dimethylpropan-1-one1172054-41-9C16H21N3O3
- Methyl 6-(((3-butyl-5-methylisoxazol-4-yl)methyl)amino)nicotinate1254962-95-2C16H21N3O3
- Ethyl 4-((7-hydroxypyrazolo[1,5-a]pyrimidin-5-yl)methyl)cyclohexanecarboxylate1260106-31-7C16H21N3O3
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-(4-(diethylamino)but-2-yn-1-yl)urea1396814-07-5C16H21N3O3
- 1-(3-Methoxyphenyl)-3-(4-morpholinobut-2-yn-1-yl)urea1396856-92-0C16H21N3O3
- 1-Methyl-4-[4-(pyridin-2-yloxy)piperidine-1-carbonyl]pyrrolidin-2-one1421492-21-8C16H21N3O3
- tert-Butyl [1-(4-methoxybenzyl)-1H-pyrazol-4-yl]carbamate2096985-85-0C16H21N3O3
- 7-((Bis(1-methylethyl)amino)methyl)-5-nitro-8-quinolinol74440-58-7C16H21N3O3
- 3-Pyridinecarboxylic acid, 2-(4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)-5-propyl-105783-16-2C16H21N3O3
- 1-(4-Methoxyphenyl)-4-(piperazin-1-ylcarbonyl)pyrrolidin-2-one765838-55-9C16H21N3O3
- N-[(2-Ethylpyrazol-3-yl)methyl]-3,5-dimethoxy-N-methylbenzamide1005560-82-6C16H21N3O3
- 2-(4-Ethyl-2,3-dioxopiperazin-1-yl)-N-(4-ethylphenyl)acetamide868680-38-0C16H21N3O3
- N1-(1-acetyl-1,2,3,4-tetrahydroquinolin-7-yl)-N2-propyloxalamide898424-08-3C16H21N3O3
- N1-(1-acetyl-1,2,3,4-tetrahydroquinolin-7-yl)-N2-isopropyloxalamide898439-68-4C16H21N3O3
- N-(5-tert-Butyl-1H-pyrazol-3-yl)-2,6-dimethoxybenzamide82559-57-7C16H21N3O3
- N-[4-(4-Propoxyphenyl)-1,2,5-oxadiazol-3-yl]pentanamide898473-27-3C16H21N3O3
- N-Cyclohexyl-4-[3-(furan-2-yl)-1,2,4-oxadiazol-5-yl]butanamide900749-35-1C16H21N3O3
- 3-Ethoxy-1-ethyl-N-(2-methoxybenzyl)-1H-pyrazole-4-carboxamide1014069-75-0C16H21N3O3
- 3-Ethoxy-1-ethyl-N-(3-methoxybenzyl)-1H-pyrazole-4-carboxamide1014087-83-2C16H21N3O3
- 2-(4,4-Diethyl-2,5-dioxoimidazolidin-1-yl)-N-(o-tolyl)acetamide942034-03-9C16H21N3O3
- 1-Acetyl-N-[3-(acetylamino)phenyl]piperidine-4-carboxamide915908-07-5C16H21N3O3
- 1-[4-[[5-(2-Furanyl)-3-isoxazolyl]methyl]-1-piperazinyl]-2-methyl-1-propanone1060816-35-4C16H21N3O3
- 4-Hydroxy-N-(5-oxo-1-phenylpyrrolidin-3-yl)piperidine-1-carboxamide887465-00-1C16H21N3O3
- N-[1-(2-Methoxyethyl)-1H-indol-3-yl]morpholine-4-carboxamide941951-59-3C16H21N3O3
- N1-isopropyl-N2-(3-methyl-4-(2-oxopyrrolidin-1-yl)phenyl)oxalamide941890-32-0C16H21N3O3
- 1 suppliersEthyl (4-(2-keto-1-benzimidazolinyl)piperidin-1-yl)acetate306299-90-1C16H21N3O3
- 1-[(1-Cyano-1,2-dimethylpropyl)carbamoyl]ethyl 6-methylpyridine-3-carboxylate1042874-06-5C16H21N3O3
- 3-Methyl-6-(propan-2-yl)-N-(tetrahydrofuran-2-ylmethyl)[1,2]oxazolo[5,4-b]pyridine-4-carboxamide1190262-96-4C16H21N3O3
- N-(1-Cyanocyclopentyl)-2-[(2,4-dimethoxyphenyl)amino]acetamide1181547-82-9C16H21N3O3
- Methyl 2-[[2-[(2-cyano-3-methylbutan-2-yl)amino]-2-oxoethyl]amino]benzoate1181496-39-8C16H21N3O3
- Methyl 3-({[(1-cyano-1,2-dimethylpropyl)carbamoyl]methyl}amino)benzoate1197507-40-6C16H21N3O3
- Methyl 4-[[2-[(2-cyano-3-methylbutan-2-yl)amino]-2-oxoethyl]amino]benzoate1240701-27-2C16H21N3O3
- 2-(4-(5-Cyano-2-methoxyphenoxy)piperidin-1-yl)-N-methylacetamide1196531-35-7C16H21N3O3
- tert-Butyl N-[(S)-[(cyanomethyl)(methyl)carbamoyl](phenyl)methyl]carbamate1333846-16-4C16H21N3O3
- 1-[3-(3,6-Dihydro-2H-pyran-4-yl)-4-nitro-phenyl]-4-methyl-piperazine885692-99-9C16H21N3O3
- 1-(1,1-Diethoxy-ethyl)-6-methoxy-2-methyl-1H-benzoimidazole-4-carbonitrile955886-87-0C16H21N3O3
- 3-(4-Methyl-piperazin-1-yl)-5-(2-oxo-pyrrolidin-1-yl)-benzoic acid706794-47-0C16H21N3O3
- Agomelatine urea1366181-82-9C16H21N3O3
- [(1-Cyano-1-cyclopropylethyl)carbamoyl]methyl 2-(2,5-dimethyl-1H-pyrrol-1-yl)acetate1424579-66-7C16H21N3O3
- 2-[4-(Acetylamino)-1H-indol-1-yl]-N-(3-methoxypropyl)acetamide1574346-20-5C16H21N3O3
- N-(1-Cyanocyclopentyl)-2-(1,3-dioxo-octahydro-1H-isoindol-2-yl)acetamide1624311-43-8C16H21N3O3
- Methyl (3-(5-(1-(cyclopropylamino)ethyl)-2-methoxypyridin-3-yl)prop-2-yn-1-yl)carbamate1399851-50-3C16H21N3O3
- tert-Butyl 2-(4-amino-2-cyanophenyl)morpholine-4-carboxylate1609462-15-8C16H21N3O3
- Cyclohex-3-en-1-yl(3-((6-methoxypyridazin-3-yl)oxy)pyrrolidin-1-yl)methanone2034502-99-1C16H21N3O3
- 1-(4-(3-(Pyridin-3-yloxy)azetidine-1-carbonyl)piperidin-1-yl)ethanone1903509-98-7C16H21N3O3
- 2,5-Dimethyl-N-(1-((tetrahydro-2H-pyran-2-yl)methyl)-1H-pyrazol-4-yl)furan-3-carboxamide2034611-87-3C16H21N3O3
- 5-(2,4-Dioxo-1,2-dihydroquinazolin-3(4H)-yl)-N-isopropylpentanamide2034455-18-8C16H21N3O3
- 5-(2,4-Dioxo-1,2-dihydroquinazolin-3(4H)-yl)-N-propylpentanamide2034512-40-6C16H21N3O3
- 3-(2-Methoxyphenyl)-1-[1-(prop-2-enoyl)piperidin-4-yl]urea2094170-46-2C16H21N3O3
- 2-[(4-tert-Butylphenyl)formamido]-N-(1-cyano-2-hydroxyethyl)acetamide2094899-07-5C16H21N3O3
- N-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)-2-(furan-2-yl)ethyl)tetrahydrofuran-3-carboxamide2034592-77-1C16H21N3O3
- N-(2-(4-(Furan-2-yl)-3,5-dimethyl-1H-pyrazol-1-yl)ethyl)tetrahydrofuran-3-carboxamide2034328-84-0C16H21N3O3
- N-(2-(2-(1H-Pyrazol-1-yl)ethoxy)ethyl)-2-phenoxypropanamide2034563-34-1C16H21N3O3
- N-(2-(2-(1H-Pyrazol-1-yl)ethoxy)ethyl)-2-(o-tolyloxy)acetamide2034301-29-4C16H21N3O3
- N-((4-Hydroxy-4,5,6,7-tetrahydrobenzofuran-4-yl)methyl)-1,3,5-trimethyl-1H-pyrazole-4-carboxamide2320145-34-2C16H21N3O3
- 6-Methoxy-7-(N-methylpiperidin-3-ylmethoxy)-3,4-dihydroquinazolin-4-one263400-85-7C16H21N3O3
- N-[(5-Methoxypyridin-2-yl)methyl]-1-prop-2-enoylpiperidine-4-carboxamide2361709-64-8C16H21N3O3
- N-[(3-Methoxypyridin-2-yl)methyl]-1-(prop-2-enoyl)piperidine-4-carboxamide2361758-72-5C16H21N3O3
- tert-Butyl 4-((6-cyanopyridin-3-yl)oxy)piperidine-1-carboxylate1401533-31-0C16H21N3O3
- 2,3,5,10,11,11a-Hexahydro-9-hydroxy-8-methyl-5-oxo-1H-pyrrolo(2,1-c)(1,4)benzodiazepine-2-propionamide5550-39-0C16H21N3O3
- Glutaramic acid, 4-amino-N-(1-(3-indolyl)-2-propyl)-, (-)-(L)-58672-48-3C16H21N3O3
- 2-(4,4-Diethyl-2,5-dioxoimidazolidin-1-yl)-N-(3-methylphenyl)acetamide941905-07-3C16H21N3O3
- 3-(1,4-Dioxo-3,4-dihydro-2(1H)-phthalazinyl)-N-pentylpropanamide448905-68-8C16H21N3O3
- [(1-Cyanocyclohexyl)(methyl)carbamoyl]methyl 1-methyl-1H-pyrrole-2-carboxylate876691-29-1C16H21N3O3
- 3-Pyridinecarboxaldehyde, 1,2,5,6-tetrahydro-1-((((1-phenylethyl)amino)carbonyl)oxy)-, 3-(O-methyloxime), (R-(E))-145163-76-4C16H21N3O3
- 1,1-Dimethylethyl 3-amino-5-[(phenylmethoxy)methyl]-1H-pyrazole-1-carboxylate393590-63-1C16H21N3O3
- 1-Benzoyl-3-(morpholinomethyl)tetrahydropyrimidin-2(1H)-one82822-16-0C16H21N3O3
- N~2~-{3-[(Cyclopropanecarbonyl)amino]phenyl}-N~1~,N~1~-diethylethanediamide88150-13-4C16H21N3O3
- N-(4-Ethyl-1,2,5-oxadiazol-3-yl)-4-(pentyloxy)benzamide880787-33-7C16H21N3O3
- 3-Methyl-N-{4-[4-(propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}butanamide898616-54-1C16H21N3O3
- N-{4-[4-(Propan-2-yloxy)phenyl]-1,2,5-oxadiazol-3-yl}pentanamide898616-58-5C16H21N3O3
- N-[4-(4-Butoxyphenyl)-1,2,5-oxadiazol-3-yl]-2-methylpropanamide898611-16-0C16H21N3O3
- N-[2-(Dimethylamino)ethyl]-2-[5-(3-methoxyphenyl)-1,2-oxazol-3-yl]acetamide953203-45-7C16H21N3O3
- 3-Ethoxy-N-(2-ethoxyphenyl)-1-ethyl-1H-pyrazole-4-carboxamide1014028-27-3C16H21N3O3
Frequently asked questions
What is the molar mass of C16H21N3O3?
The molar mass of C16H21N3O3 is 303.36 g/mol, calculated from standard atomic weights for 16 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 309.1960 Da.
How many compounds have the formula C16H21N3O3?
CompoundList lists 387 compounds with the molecular formula C16H21N3O3, including Ethyl 4-(5-methyl-2-oxo-1-benzimidazolinyl)piperidine-1-carboxylate, 5-([4-(4-Methoxyphenyl)piperazin-1-yl]carbonyl)pyrrolidin-2-one, 1-[4-(Acetylamino)phenyl]-5-oxo-N-propylpyrrolidine-3-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 C16H21N3O3?
C16H21N3O3 has a degree of unsaturation of 8. 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.