Molecular formula
C16H21N5O
241 compounds have this formula on CompoundList.
- Molar mass
- 299.38g/mol
- Monoisotopic mass
- 299.1746Da
- Atoms
- 43
- Elements
- 4
- Rings plus double bonds
- 9
The formula C16H21N5O describes a molecule made of 16 carbon atoms, 21 hydrogen atoms, 5 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 × 1664.19%12.011 × 16 = 192.176 g/mol
- H Hydrogen × 217.07%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 523.39%14.007 × 5 = 70.035 g/mol
- O Oxygen × 15.34%15.999 × 1 = 15.999 g/mol
Look up another formula
Compounds with the formula C16H21N5O
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 241 compounds
Arginine beta-naphthylamide
CAS 7182-70-9C16H21N5O
![N-(4,6-Dimethylpyrimidin-2-yl)-N'-[2-(4-methoxyphenyl)ethyl]guanidine chemical structure, C16H21N5O, CAS 433687-45-7](/s/BVHXEVOLFSFPCB-UHFFFAOYSA-N.svg)
N-(4,6-Dimethylpyrimidin-2-yl)-N'-[2-(4-methoxyphenyl)ethyl]guanidine
CAS 433687-45-7C16H21N5O
1-(4,6-Dimethylpyrimidin-2-yl)-3-(2-propoxyphenyl)guanidine
CAS 352659-63-3C16H21N5O
![1-[4-(2,6-Dimethylphenyl)piperazino]-2-(1H-1,2,4-triazol-1-yl)-1-ethanone chemical structure, C16H21N5O, CAS 866149-88-4](/s/HDLAMEMREQDZDG-UHFFFAOYSA-N.svg)
1-[4-(2,6-Dimethylphenyl)piperazino]-2-(1H-1,2,4-triazol-1-yl)-1-ethanone
CAS 866149-88-4C16H21N5O
(E)-3-(4-Propan-2-ylphenyl)-N-(2-propyltetrazol-5-yl)prop-2-enamide
CAS 593241-47-5C16H21N5O
Akos bbs-00005555
CAS 669751-99-9C16H21N5O
![N'-[(1Z)-1-(4-Aminophenyl)ethylidene]-5-tert-butyl-1H-pyrazole-3-carbohydrazide chemical structure, C16H21N5O, CAS 306303-43-5](/s/GPEOSYGGLVTOJB-VCHYOVAHSA-N.svg)
N'-[(1Z)-1-(4-Aminophenyl)ethylidene]-5-tert-butyl-1H-pyrazole-3-carbohydrazide
CAS 306303-43-5C16H21N5O
N-(4,6-Dimethylpyrimidin-2-yl)-N'-(2-propoxyphenyl)guanidine
C16H21N5O
![1-(3,5-Dimethylphenyl)-3-{2-[(6-methylpyridazin-3-yl)amino]ethyl}urea chemical structure, C16H21N5O, CAS 1173077-85-4](/s/GAPNPBZILZVWPR-UHFFFAOYSA-N.svg)
1-(3,5-Dimethylphenyl)-3-{2-[(6-methylpyridazin-3-yl)amino]ethyl}urea
CAS 1173077-85-4C16H21N5O
![5-[(1,2,3,4-Tetrahydro-8-methoxy-4-methyl-6-quinolinyl)methyl]-2,4-pyrimidinediamine chemical structure, C16H21N5O, CAS 89445-82-9](/s/AXNZFCMTBSSQSI-UHFFFAOYSA-N.svg)
5-[(1,2,3,4-Tetrahydro-8-methoxy-4-methyl-6-quinolinyl)methyl]-2,4-pyrimidinediamine
CAS 89445-82-9C16H21N5O
N-(Cyclohexylmethyl)-2-(p-tolyl)-2H-tetrazole-5-carboxamide
CAS 1396685-22-5C16H21N5O
1-(4,6-Dimethylpyrimidin-2-yl)-3-(4-propoxyphenyl)guanidine
CAS 352659-62-2C16H21N5O
![1-(3-Aminopropyl)-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-4-amine chemical structure, C16H21N5O, CAS 823809-16-1](/s/HVJUMTMMTHTXOF-UHFFFAOYSA-N.svg)
1-(3-Aminopropyl)-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-4-amine
CAS 823809-16-1C16H21N5O
5-Amino-N-cyclohexyl-1-(3-methylphenyl)-1H-1,2,3-triazole-4-carboxamide
CAS 887690-36-0C16H21N5O
1-(2,3-Dimethylphenyl)-3-(2-((6-methylpyridazin-3-yl)amino)ethyl)urea
CAS 1206997-85-4C16H21N5O
![1-{[1-(3,5-Dimethylphenyl)-1H-1,2,3-triazol-4-yl]carbonyl}piperidin-4-amine chemical structure, C16H21N5O, CAS 1351810-19-9](/s/DXFLEQLIQQLYRA-UHFFFAOYSA-N.svg)
1-{[1-(3,5-Dimethylphenyl)-1H-1,2,3-triazol-4-yl]carbonyl}piperidin-4-amine
CAS 1351810-19-9C16H21N5O
(R)-(7-Methyl-1,4-diazepan-1-yl)(5-methyl-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone
CAS 1030377-32-2C16H21N5O
5-Amino-N-cyclohexyl-1-(2-methylphenyl)-1H-1,2,3-triazole-4-carboxamide
CAS 950240-44-5C16H21N5O
N2-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)pyrimidine-2,5-diamine
CAS 910904-67-5C16H21N5O
(4-Aminopiperidin-1-yl)(1-(3-ethylphenyl)-1H-1,2,3-triazol-4-yl)methanone
CAS 1351788-36-7C16H21N5O
5-Amino-N-cyclohexyl-1-(4-methylphenyl)triazole-4-carboxamide
CAS 887690-47-3C16H21N5O
![1-(3-Aminopropyl)-2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-4-amine chemical structure, C16H21N5O, CAS 570411-05-1](/s/KZWUQTRMSBGBBN-UHFFFAOYSA-N.svg)
1-(3-Aminopropyl)-2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-4-amine
CAS 570411-05-1C16H21N5O
![1-(2-Ethylphenyl)-3-{2-[(6-methylpyridazin-3-yl)amino]ethyl}urea chemical structure, C16H21N5O, CAS 1169992-74-8](/s/YOVNPGVHVXLCTN-UHFFFAOYSA-N.svg)
1-(2-Ethylphenyl)-3-{2-[(6-methylpyridazin-3-yl)amino]ethyl}urea
CAS 1169992-74-8C16H21N5O
![1-{[1-(4-Ethylphenyl)-1H-1,2,3-triazol-4-yl]carbonyl}piperidin-4-amine chemical structure, C16H21N5O, CAS 1351779-88-8](/s/OVKXENJXBISZJB-UHFFFAOYSA-N.svg)
1-{[1-(4-Ethylphenyl)-1H-1,2,3-triazol-4-yl]carbonyl}piperidin-4-amine
CAS 1351779-88-8C16H21N5O
- N-(6-(4-Methylpiperidin-1-yl)pyrimidin-4-yl)-2-(1H-pyrrol-1-yl)acetamide1396812-94-4C16H21N5O
- N-(2-((6-(1H-Pyrrol-1-yl)pyrimidin-4-yl)amino)ethyl)cyclopentanecarboxamide1421455-31-3C16H21N5O
- 1-[2,2-Dimethyl-5-(7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-1-piperidinyl]-2-propen-1-one1792181-50-0C16H21N5O
- 1-[p-Butylphenyl]-3-[4-hydroxy-6-methyl-2-pyrimidinyl]guanidine51388-19-3C16H21N5O
- (2E)-2-({1-[4-(Dimethylamino)phenyl]-2,5-dimethyl-1H-pyrrol-3-yl}methylidene)hydrazinecarboxamide340304-56-5C16H21N5O
- N'-(1-Methyl-3,6-diazatricyclo[4.3.1.1~3,8~]undec-9-ylidene)isonicotinohydrazide351332-31-5C16H21N5O
- 1-(2,4-Dimethylphenyl)-3-(2-((6-methylpyridazin-3-yl)amino)ethyl)urea1172294-21-1C16H21N5O
- (2-([6-(4-Phenylpiperazin-1-yl)pyrimidin-4-yl]oxy)ethyl)amine1204296-34-3C16H21N5O
- N-(2-{[6-(Dimethylamino)-2-methylpyrimidin-4-yl]amino}ethyl)benzamide1203397-83-4C16H21N5O
- 1-[4-(Pyrimidin-2-yl)piperazin-1-yl]-4-(1H-pyrrol-1-yl)butan-1-one1257548-87-0C16H21N5O
- 1-(4-(6-(1H-Pyrrol-1-yl)pyridazin-3-yl)piperazin-1-yl)butan-1-one1421474-50-1C16H21N5O
- 1-(4-(2-Methyl-6-(1H-pyrrol-1-yl)pyrimidin-4-yl)piperazin-1-yl)propan-1-one1421498-13-6C16H21N5O
- 1-((4-(Dimethylamino)pyrimidin-2-yl)methyl)-3-(2-ethylphenyl)urea1798490-07-9C16H21N5O
- 1-((2-(Dimethylamino)pyrimidin-4-yl)methyl)-3-(2-ethylphenyl)urea1788543-14-5C16H21N5O
- N-Cyclooctyl-3-(1H-tetrazol-1-yl)benzamide923817-25-8C16H21N5O
- N-(4-{[4-(Ethylamino)-6-methylpyrimidin-2-yl]amino}phenyl)propanamide923695-07-2C16H21N5O
- N-((1-Cyclohexyl-1H-tetrazol-5-yl)methyl)-4-methylbenzamide920438-73-9C16H21N5O
- N-((1-Cyclohexyl-1H-tetrazol-5-yl)methyl)-2-phenylacetamide921104-47-4C16H21N5O
- 1-[1-(4-Ethylphenyl)-1H-1,2,3-triazole-4-carbonyl]-4-methylpiperazine1326920-15-3C16H21N5O
- 5-Methyl-2-((3-(4-methylpiperazin-1-yl)phenyl)amino)pyrimidin-4(3H)-one1245642-85-6C16H21N5O
- N-(1-Phenylethyl)-1-(1H-tetrazol-1-yl)cyclohexanecarboxamide1374509-82-6C16H21N5O
- N-[(1-Methyl-1H-pyrrol-2-yl)methyl]-1-(2-pyrimidinyl)-3-piperidinecarboxamide1401591-78-3C16H21N5O
- N-Cyclohexyl-N-methyl-2-(p-tolyl)-2H-tetrazole-5-carboxamide1396877-97-6C16H21N5O
- N-(2-{[6-(1H-pyrrol-1-yl)pyridazin-3-yl]amino}ethyl)cyclopentanecarboxamide1428371-63-4C16H21N5O
- 1-((2-(Dimethylamino)pyrimidin-4-yl)methyl)-3-(4-ethylphenyl)urea1797815-23-6C16H21N5O
- 1-((2-(Dimethylamino)pyrimidin-4-yl)methyl)-3-(2,3-dimethylphenyl)urea1797975-89-3C16H21N5O
- N-Cyclopentyl-4-methyl-2,3,7,11-tetrazatricyclo[7.4.0.02,6]trideca-1(9),3,5,7-tetraene-11-carboxamide1797905-93-1C16H21N5O
- N-(3,4-Dimethylphenyl)-4-(1H-1,2,3-triazol-1-yl)piperidine-1-carboxamide1798638-04-6C16H21N5O
- N'-(1-Amino-2-cyanoethylidene)-1-benzylpiperidine-4-carbohydrazide478064-16-3C16H21N5O
- 1H-Imidazo[4,5-c]quinolin-4-amine, 1-[3-(aminooxy)propyl]-2-propyl-847436-33-3C16H21N5O
- 1-Benzyl-N'-(2-cyanoethanimidoyl)-4-piperidinecarbohydrazideC16H21N5O
- N-((1-(p-Tolyl)-1H-tetrazol-5-yl)methyl)cyclohexanecarboxamide921073-83-8C16H21N5O
- 2-Cyclopentyl-N-((1-(p-tolyl)-1H-tetrazol-5-yl)methyl)acetamide920459-21-8C16H21N5O
- 2-Cyclohexyl-N-((1-phenyl-1H-tetrazol-5-yl)methyl)acetamide946276-46-6C16H21N5O
- N-((1-Cyclohexyl-1H-tetrazol-5-yl)methyl)-3-methylbenzamide921143-94-4C16H21N5O
- 4-((1H-Benzo[d]imidazol-2-yl)methyl)-N-allylpiperazine-1-carboxamide1211006-83-5C16H21N5O
- {1-[4-(Methylamino)pyrimidin-2-yl]piperidin-4-YL}(pyridin-3-yl)methanol1269288-53-0C16H21N5O
- N-Phenyl-2-[1-(1H-tetrazol-1-ylmethyl)cyclohexyl]acetamide1224163-20-5C16H21N5O
- N-(1-Cyano-1-cyclopropylethyl)-2-{2-methyl-5H,6H,7H,8H-pyrido[3,4-d]pyrimidin-7-yl}acetamide1311981-03-9C16H21N5O
- N-(1-Cyanocyclohexyl)-2-{5H,6H,7H,8H-pyrido[3,4-d]pyrimidin-7-yl}acetamide1311766-72-9C16H21N5O
- 2-[4-(4-Methoxyphenyl)piperazin-1-yl]-6-methylpyrimidin-4-amine1333960-52-3C16H21N5O
- N2-(3-(2-(Pyrrolidin-1-yl)ethoxy)phenyl)pyrimidine-2,5-diamine910907-13-0C16H21N5O
- 1-(2-(Dimethylamino)-4,6-dimethylpyrimidin-5-yl)-3-(o-tolyl)urea1448034-65-8C16H21N5O
- 1-((4-(Dimethylamino)-6-methylpyrimidin-2-yl)methyl)-3-(m-tolyl)urea1797662-75-9C16H21N5O
- 1-((4-(Dimethylamino)pyrimidin-2-yl)methyl)-3-(3,4-dimethylphenyl)urea1797973-70-6C16H21N5O
- 1-((4-(Dimethylamino)pyrimidin-2-yl)methyl)-3-(4-ethylphenyl)urea1797329-93-1C16H21N5O
- 1-((4-(Dimethylamino)pyrimidin-2-yl)methyl)-3-(2,4-dimethylphenyl)urea1797973-85-3C16H21N5O
- 1-((4-(Dimethylamino)pyrimidin-2-yl)methyl)-3-(2,3-dimethylphenyl)urea1796965-25-7C16H21N5O
- 1-((4-(Dimethylamino)pyrimidin-2-yl)methyl)-3-(3,5-dimethylphenyl)urea1796993-82-2C16H21N5O
- 1-((2-(Dimethylamino)-6-methylpyrimidin-4-yl)methyl)-3-(p-tolyl)urea1797224-59-9C16H21N5O
- 1-((2-(Dimethylamino)pyrimidin-4-yl)methyl)-3-(3,4-dimethylphenyl)urea1797975-81-5C16H21N5O
- 1-((2-(Dimethylamino)pyrimidin-4-yl)methyl)-3-(3,5-dimethylphenyl)urea1797224-72-6C16H21N5O
- N-((1-(3-Cyanopyrazin-2-yl)piperidin-4-yl)methyl)cyclobutanecarboxamide1797285-94-9C16H21N5O
- N-((1-(3-Cyanopyrazin-2-yl)piperidin-4-yl)methyl)pent-4-enamide1797534-67-8C16H21N5O
- N-[(1-Ethylpyrrolidin-2-yl)methyl]-4-phenyl-1H-1,2,3-triazole-5-carboxamide1788531-98-5C16H21N5O
- 1-((2-(Dimethylamino)-6-methylpyrimidin-4-yl)methyl)-3-(o-tolyl)urea1795489-96-1C16H21N5O
- (4-(1H-1,2,3-Triazol-1-yl)piperidin-1-yl)(3-(dimethylamino)phenyl)methanone1798489-62-9C16H21N5O
- N-(2-Phenylethyl)-4-(1H-1,2,3-triazol-1-yl)piperidine-1-carboxamide1798538-99-4C16H21N5O
- N-(Cyanomethyl)-2-[1-(1-propan-2-ylbenzimidazol-2-yl)ethylamino]acetamide1645443-13-5C16H21N5O
- 1-Cyclopentyl-3-((2-(1-methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)urea2034300-64-4C16H21N5O
- 1-Cyclopentyl-3-((6-(1-methyl-1H-pyrazol-5-yl)pyridin-3-yl)methyl)urea2034393-64-9C16H21N5O
- 11-(1,3,5-Trimethyl-1H-pyrazole-4-carbonyl)-7,8,11-triazatricyclo[6.4.0.0^{2,6}]dodeca-1,6-diene2034604-29-8C16H21N5O
- 2-Cyclopentyl-N-{2-[3-(pyrazin-2-yl)-1H-pyrazol-1-yl]ethyl}acetamide2034290-38-3C16H21N5O
- 1-Cyclopentyl-3-((5-(1-methyl-1H-pyrazol-4-yl)pyridin-3-yl)methyl)urea2034383-79-2C16H21N5O
- (4-(2H-1,2,3-Triazol-2-yl)piperidin-1-yl)(4-(dimethylamino)phenyl)methanone2197455-80-2C16H21N5O
- N-Phenethyl-4-(2H-1,2,3-triazol-2-yl)piperidine-1-carboxamide2200140-53-8C16H21N5O
- 3-Cyclopentyl-N-((1-(pyridin-3-yl)-1H-1,2,3-triazol-4-yl)methyl)propanamide2322075-12-5C16H21N5O
- N-{[6-(1-Methyl-1H-pyrazol-4-yl)pyridin-3-yl]methyl}piperidine-1-carboxamide2034462-23-0C16H21N5O
- 2-Cyclopentyl-N-{2-[2-(pyrazin-2-yl)-1H-imidazol-1-yl]ethyl}acetamide2034633-10-6C16H21N5O
- 3-Cyclopentyl-1-{[2-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yl]methyl}urea2034290-70-3C16H21N5O
- 3-[4-(Prop-2-yn-1-yl)piperazine-1-carbonyl]-6-(pyrrolidin-1-yl)pyridazine2094501-33-2C16H21N5O
- 4,5-Dimethyl-6-{[1-(pyrazin-2-yl)piperidin-4-yl]methoxy}pyrimidine2320861-24-1C16H21N5O
- N-(4-tert-Butylphenyl)-3-(2H-1,2,3-triazol-2-yl)azetidine-1-carboxamide2309599-78-6C16H21N5O
- 3,3-Dimethyl-4-(1-{7H-pyrrolo[2,3-d]pyrimidin-4-yl}piperidin-4-yl)azetidin-2-one2220164-69-0C16H21N5O
- N-Cycloheptyl-3-(5-methyl-1H-tetrazol-1-yl)benzamide1324084-75-4C16H21N5O
- N-Cycloheptyl-2-(5-methyl-1H-tetrazol-1-yl)benzamide1324070-42-9C16H21N5O
Frequently asked questions
What is the molar mass of C16H21N5O?
The molar mass of C16H21N5O is 299.38 g/mol, calculated from standard atomic weights for 16 carbon atoms, 21 hydrogen atoms, 5 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 299.1746 Da.
How many compounds have the formula C16H21N5O?
CompoundList lists 241 compounds with the molecular formula C16H21N5O, including Arginine beta-naphthylamide, N-(4,6-Dimethylpyrimidin-2-yl)-N'-[2-(4-methoxyphenyl)ethyl]guanidine, 1-(4,6-Dimethylpyrimidin-2-yl)-3-(2-propoxyphenyl)guanidine. 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 C16H21N5O?
C16H21N5O has a degree of unsaturation of 9. 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.