Molecular formula
C16H21N3O
274 compounds have this formula on CompoundList.
- Molar mass
- 271.36g/mol
- Monoisotopic mass
- 271.1685Da
- Atoms
- 41
- Elements
- 4
- Rings plus double bonds
- 8
The formula C16H21N3O describes a molecule made of 16 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 1 oxygen 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 × 1670.82%12.011 × 16 = 192.176 g/mol
- H Hydrogen × 217.80%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 315.49%14.007 × 3 = 42.021 g/mol
- O Oxygen × 15.90%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C16H21N3O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 274 compounds
RefChem:178430
CAS 149206-69-9C16H21N3O
1-Ethyl-3-morpholin-4-yl-5,6,7,8-tetrahydroisoquinoline-4-carbonitrile
CAS 374548-18-2C16H21N3O
Azepan-1-yl-(5,6-dimethyl-benzoimidazol-1-yl)-methanone
CAS 510734-27-7C16H21N3O
1-Adamantan-1-yl-3-pyridin-2-yl-urea
CAS 126334-11-0C16H21N3O
![2-Phenyl-6-(prop-2-en-1-yl)-1,2,4-triazaspiro[4.5]decan-3-one chemical structure, C16H21N3O, CAS 202820-89-1](/s/XTEMJVQAQYXBCO-UHFFFAOYSA-N.svg)
2-Phenyl-6-(prop-2-en-1-yl)-1,2,4-triazaspiro[4.5]decan-3-one
CAS 202820-89-1C16H21N3O
![(4-Ethylphenyl)(1,3,5-triazatricyclo[3.3.1.1~3,7~]dec-7-yl)methanone chemical structure, C16H21N3O, CAS 149034-82-2](/s/BHWBHFOCUIYOJA-UHFFFAOYSA-N.svg)
(4-Ethylphenyl)(1,3,5-triazatricyclo[3.3.1.1~3,7~]dec-7-yl)methanone
CAS 149034-82-2C16H21N3O
N-(1-Ethylbenzimidazol-2-yl)cyclohexanecarboxamide
CAS 364382-75-2C16H21N3O
![N-[2-(Dimethylamino)quinolin-4-yl]pentanamide chemical structure, C16H21N3O, CAS 300731-13-9](/s/WMOYXQAXSRDESI-UHFFFAOYSA-N.svg)
N-[2-(Dimethylamino)quinolin-4-yl]pentanamide
CAS 300731-13-9C16H21N3O
2-(Cyclopropylmethyl)-4-(4-isopropylphenyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one
CAS 860785-31-5C16H21N3O
(2,3-Dimethyl-1H-indol-5-yl)(4-methylpiperazin-1-yl)methanone
CAS 883467-24-1C16H21N3O
![2-(4-Methylphenyl)-5-[(2-methylpiperidin-1-yl)methyl]-1,3,4-oxadiazole chemical structure, C16H21N3O, CAS 904008-39-5](/s/ZYSRMAAUYLSEGT-UHFFFAOYSA-N.svg)
2-(4-Methylphenyl)-5-[(2-methylpiperidin-1-yl)methyl]-1,3,4-oxadiazole
CAS 904008-39-5C16H21N3O
(2S)-2,6-Diamino-N-2-naphthalenylhexanamide
CAS 4420-88-6C16H21N3O
1-(2-Cyanoethyl)-1-cyclohexyl-3-phenylurea
CAS 6640-06-8C16H21N3O
3-(1-Benzyl-3,5-dimethyl-1H-pyrazol-4-yl)morpholine
CAS 1461707-27-6C16H21N3O
N-(5-Methylhexan-2-yl)quinoxaline-6-carboxamide
CAS 851300-64-6C16H21N3O
![3-(2-tert-Butylimidazo[1,2-a]benzimidazol-3-yl)propan-1-ol chemical structure, C16H21N3O, CAS 331850-42-1](/s/WSFKQUPNWGJVRQ-UHFFFAOYSA-N.svg)
3-(2-tert-Butylimidazo[1,2-a]benzimidazol-3-yl)propan-1-ol
CAS 331850-42-1C16H21N3O
![N-[2-(1H-1,3-Benzodiazol-2-yl)ethyl]cyclohexanecarboxamide chemical structure, C16H21N3O, CAS 315712-43-7](/s/FHMOGZGTPLTORC-UHFFFAOYSA-N.svg)
N-[2-(1H-1,3-Benzodiazol-2-yl)ethyl]cyclohexanecarboxamide
CAS 315712-43-7C16H21N3O
4-(tert-Butyl)-N-(1,3-dimethyl-1H-pyrazol-5-yl)benzamide
CAS 164928-33-0C16H21N3O
2-(2-Dimethylaminoethyl)-5-benzylidene-6-methyl-3-pyridazinone
CAS 117027-28-8C16H21N3O
o-Desmethylpyrilamine
CAS 57830-29-2C16H21N3O
![Pyrido[2,3-d]pyrimidin-2(1H)-one, 4-cyclohexyl-1-ethyl-7-methyl- chemical structure, C16H21N3O, CAS 191219-86-0](/s/AFORUUDXYIKHFK-UHFFFAOYSA-N.svg)
Pyrido[2,3-d]pyrimidin-2(1H)-one, 4-cyclohexyl-1-ethyl-7-methyl-
CAS 191219-86-0C16H21N3O
![2-[(2-Methylaminoethyl)(p-methoxybenzyl)amino]pyridine chemical structure, C16H21N3O, CAS 104499-47-0](/s/LWKSMQXIHQRJJJ-UHFFFAOYSA-N.svg)
2-[(2-Methylaminoethyl)(p-methoxybenzyl)amino]pyridine
CAS 104499-47-0C16H21N3O
6-(2-Methylenebutyl)-4,5,6,7-tetrahydro-5-methylimidazo-(4,5,1-jk)(1,4)-benzodiazepin-2(1H)-one
CAS 131515-09-8C16H21N3O
N-(1-Ethylbenzimidazol-5-yl)cyclohexanecarboxamide
CAS 878424-74-9C16H21N3O
- 2-Quinolinecarboxamide, N-(2-(diethylamino)ethyl)-32421-48-0C16H21N3O
- R-(-)-6-(2-Methyl-2-butene-4-yl)-4,5,6,7-tetrahydro-5-methylimidazo-(4,5,1-jk)(1,4)-benzodiazepin-2(1H)-one131613-18-8C16H21N3O
- Isonicotinoyl hydrazone of citral13059-78-4C16H21N3O
- (5,7-Dimethyl-1H-indol-2-yl)(4-methylpiperazin-1-yl)methanone459169-50-7C16H21N3O
- Orb17033271251462-28-8C16H21N3O
- (4-Cyclopropylpiperazin-1-yl)(isoindolin-2-yl)methanone929096-44-6C16H21N3O
- N-(3-(1-Methylpiperidin-4-yl)-1H-indol-5-yl)acetamide182563-03-7C16H21N3O
- 2-(1-Methyl-1,2,3,4-tetrahydroquinolin-6-yl)-2-morpholinoacetonitrile1171344-35-6C16H21N3O
- Indeno(1,2-c)pyrazole-1(4H)-ethanamine, 7-methoxy-alpha,4,4-trimethyl-, (S)-176721-17-8C16H21N3O
- 2,6-Diamino-N-(2-naphthyl)hexanamide93150-05-1C16H21N3O
- 4-Methyl-N-(2-morpholin-4-ylethyl)quinolin-2-amine141268-13-5C16H21N3O
- Ethanamine, N,N-dimethyl-2-((4'-methyl(2,2'-bipyridin)-4-yl)methoxy)-109628-23-1C16H21N3O
- 6-(E-3-Methyl-2-buten-4-yl)-4,5,6,7-tetrahydro-5-methylimidazo-[4,5,1-jk][1,4]-benzodiazepin-2(1H)-one126233-99-6C16H21N3O
- 1-(2-Methyl-1H-indol-3-yl)-2-(4-methylpiperazin-1-yl)ethanone329266-58-2C16H21N3O
- N-(2-Butan-2-ylphenyl)-1-ethyl-pyrazole-4-carboxamide6306-32-7C16H21N3O
- 2-(4-Aminophenyl)-5,7-dimethyl-1,3-diazaadamantan-6-one917216-46-7C16H21N3O
- 1-Benzyl-4-(1H-imidazol-1-ylmethyl)piperidin-4-ol1038351-17-5C16H21N3O
- 1-tert-Butyl-4-(1-methylbenzimidazol-2-yl)pyrrolidin-2-one876888-56-1C16H21N3O
- 2-(3-Aminophenyl)-5,7-dimethyl-1,3-diazatricyclo[3.3.1.1~3,7~]decan-6-one359904-16-8C16H21N3O
- 1-(4-Methoxyphenyl)-6,6-dimethyl-4,5,6,7-tetrahydro-1H-indazol-4-amine924714-14-7C16H21N3O
- N-[2-(1-Prop-2-enylbenzimidazol-2-yl)ethyl]butanamide686736-21-0C16H21N3O
- N-[3-(1-Prop-2-enylbenzimidazol-2-yl)propyl]propanamide686736-43-6C16H21N3O
- N-{3-[1-(2-Methylprop-2-en-1-yl)-1H-1,3-benzodiazol-2-yl]propyl}acetamide881433-10-9C16H21N3O
- 2-((4-Methylpiperidin-1-yl)methyl)-5-(p-tolyl)-1,3,4-oxadiazole883280-04-4C16H21N3O
- 7-(4-Methylphenyl)-5-(morpholin-4-yl)-2,3-dihydro-1H-1,4-diazepine918884-74-9C16H21N3O
- 2-{Bis[2-(pyridin-2-yl)ethyl]amino}ethan-1-ol917955-88-5C16H21N3O
- N-[[3-(4-Methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]cyclohexanamine727366-20-3C16H21N3O
- 2-(Azepan-1-ylmethyl)-5-(p-tolyl)-1,3,4-oxadiazole883280-01-1C16H21N3O
- Pyrazole, 3-methyl-1-phenyl-5-(2-(1-pyrrolidinyl)ethoxy)-15150-36-4C16H21N3O
- 4-Methyl-1-{[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl}piperidine585559-23-5C16H21N3O
- (1H-Indol-6-yl)-(4-isopropyl-piperazin-1-yl)-methanone1005458-13-8C16H21N3O
- Imidazole, 1-(1-phenylethyl)-5-(morpholinomethyl)-101564-79-8C16H21N3O
- 1-(1,1-Dimethylethyl)-5-methyl-N-(4-methylphenyl)-1H-pyrazole-3-carboxamide957312-82-2C16H21N3O
- Azepino(3,4-b)indol-1(2H)-one, 3,4,5,10-tetrahydro-10-(2-(dimethylamino)ethyl)-54188-27-1C16H21N3O
- N-(1-Ethyl-3,5-dimethyl-1H-pyrazol-4-yl)-3,5-dimethylbenzamide515176-97-3C16H21N3O
- (E)-1-Benzyl-3,6-diazatricyclo[4.3.1.1(3,8)]undecan-9-one oxime329213-02-7C16H21N3O
- 3-Dimethylamino-1-[[(1H)-indol 3 yl]carbonyl]piperidine126584-47-2C16H21N3O
- N-(4-Methylphenyl)-3-(3,4,5-trimethyl-1H-pyrazol-1-yl)propanamide957506-97-7C16H21N3O
- 3-(3,5-Dimethyl-1H-pyrazol-1-yl)-N-(4-methylphenyl)butanamide957507-13-0C16H21N3O
- 4-tert-Butyl-N-(1-ethyl-1H-pyrazol-5-yl)benzamide956245-43-5C16H21N3O
- N-Isopentyl-N-[3-(2-pyrimidinyloxy)benzyl]amine932167-22-1C16H21N3O
- [2-(4-Methyl-1,4-diazepan-1-yl)quinolin-3-yl]methanol1038979-02-0C16H21N3O
- N-((1H-Benzo[d]imidazol-2-yl)methyl)-N-methylcyclohexanecarboxamide1223396-53-9C16H21N3O
- N-[2-(2-Methyl-1H-imidazol-1-yl)ethyl]-4-phenylbutanamide1286717-81-4C16H21N3O
- 3-(3,5-Dimethyl-1H-pyrazol-4-yl)-N-(2,3-dimethylphenyl)propanamide1286695-13-3C16H21N3O
- N-[4-(Dimethylamino)phenyl]-4-(1H-pyrrol-1-yl)butanamide1251710-09-4C16H21N3O
- N-(2-(3,5-Dimethyl-1H-pyrazol-1-yl)ethyl)-2,5-dimethylbenzamide1235166-29-6C16H21N3O
- 1-Benzyl-3-(4-(pyrrolidin-1-yl)but-2-yn-1-yl)urea1396856-38-4C16H21N3O
- 1-(4-(Pyrrolidin-1-yl)but-2-yn-1-yl)-3-(o-tolyl)urea1396856-46-4C16H21N3O
- [1-(Benzyloxy)-2-methylpropan-2-yl][(pyrimidin-2-yl)methyl]amine1855460-01-3C16H21N3O
- Pyrrolo(3,2,1-jk)(1,4)benzodiazepin-1(2H)-one, 2-(3-(dimethylamino)propyl)-3,4-dihydro-67465-18-3C16H21N3O
- 1,4-Ethano-1H-pyrido(3,2-b)(1,5)benzodiazepine, 2,3,4,4a,5,10,11,11a-octahydro-10-acetyl-72031-18-6C16H21N3O
- 9H-Pyrido(3,4-b)indol-1(2H)-one, 3,4-dihydro-9-(2-(dimethylamino)ethyl)-3-methyl-84298-29-3C16H21N3O
- 2-Quinolinemethanol, alpha-((4-methyl-1-piperazinyl)methyl)-126921-33-3C16H21N3O
- 3-(3,5-Dimethyl-1H-pyrazol-1-yl)-2-methyl-N-(4-methylphenyl)propanamide957495-34-0C16H21N3O
- 4-(1H-Indol-3-yl)-1-(piperazin-1-yl)butan-1-one952947-42-1C16H21N3O
- alpha-Ethyl-N,N,4-trimethyl-3-phenylpyrazole-1-acetamide59843-84-4C16H21N3O
- N-[3-Methyl-1-(propan-2-yl)-1H-pyrazol-5-yl]-2-(4-methylphenyl)acetamide1172789-21-7C16H21N3O
- N-(1-Cyanopropyl)-3-[(pyrrolidin-1-yl)methyl]benzamide1311586-55-6C16H21N3O
- N4-(2-morpholin-4-yl-ethyl)-naphthalene-1,4-diamine5625-81-0C16H21N3O
- 2-[(6-Methylpyridin-2-yl)methyl-prop-2-ynylamino]-1-pyrrolidin-1-ylethanone1436256-41-5C16H21N3O
- 5-Methyl-4-((4-(m-tolyl)piperazin-1-yl)methyl)isoxazole2034245-54-8C16H21N3O
- Tripelennamine N-oxide60317-19-3C16H21N3O
- 1-Ethyl-N-[1-(4-ethylphenyl)ethyl]-1H-pyrazole-3-carboxamide955567-55-2C16H21N3O
- Isonicotinic acid, (1,3,3-trimethyl-2-norbornylidene)hydrazide15407-86-0C16H21N3O
- 4-Ethyl-5-(piperidin-4-ylamino)isoquinolin-1(2H)-one651309-10-3C16H21N3O
- 2-Methyl-5-(2-piperazin-1-ylethoxy)quinoline583031-15-6C16H21N3O
- N-[1-(1H-1,3-Benzodiazol-2-yl)ethyl]cyclohexanecarboxamide930551-46-5C16H21N3O
- N-(1-Cyano-1,2-dimethylpropyl)-2-(2,3-dihydro-1H-indol-1-yl)acetamide931019-03-3C16H21N3O
- N-(1H-Indol-3-yl)-2,6-dimethylpiperidine-1-carboxamide941968-38-3C16H21N3O
- 2-(4-Ethyl-3-phenyl-1H-pyrazol-1-yl)-N,N-dimethylpropanamide59843-44-6C16H21N3O
- Ethanone,2-(4-ethyl-1-piperazinyl)-1-(1H-indol-6-yl)-904452-51-3C16H21N3O
- 1-[2-(4-Pyrazol-1-yl-phenoxy)-ethyl]-piperidine1005736-79-7C16H21N3O
- N-(4-Butylphenyl)-1,3-dimethyl-1H-pyrazole-4-carboxamide1172295-79-2C16H21N3O
- N-(2-Cyanophenyl)-2-(2-methylpiperidin-1-yl)propanamide1019548-63-0C16H21N3O
- N-(1-Cyanocyclohexyl)-2-[(4-methylphenyl)amino]acetamide1197899-75-4C16H21N3O
Frequently asked questions
What is the molar mass of C16H21N3O?
The molar mass of C16H21N3O is 271.36 g/mol, calculated from standard atomic weights for 16 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 271.1685 Da.
How many compounds have the formula C16H21N3O?
CompoundList lists 274 compounds with the molecular formula C16H21N3O, including RefChem:178430, 1-Ethyl-3-morpholin-4-yl-5,6,7,8-tetrahydroisoquinoline-4-carbonitrile, Azepan-1-yl-(5,6-dimethyl-benzoimidazol-1-yl)-methanone. 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 C16H21N3O?
C16H21N3O 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.