Molecular formula
C18H21N3O2
434 compounds have this formula on CompoundList.
- Molar mass
- 311.38g/mol
- Monoisotopic mass
- 311.1634Da
- Atoms
- 44
- Elements
- 4
- Rings plus double bonds
- 10
The formula C18H21N3O2 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 2 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 × 1869.43%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 216.80%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 313.49%14.007 × 3 = 42.021 g/mol
- O Oxygen × 210.28%15.999 × 2 = 31.998 g/mol
Look up another formula
Compounds with the formula C18H21N3O2
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 301 to 400 of 434 compounds
![N-(Cyanomethyl)-N-cyclopentyl-4-[(prop-2-enoylamino)methyl]benzamide chemical structure, C18H21N3O2, CAS 2361785-01-3](/s/QMGCDJGJTVFJOZ-UHFFFAOYSA-N.svg)
N-(Cyanomethyl)-N-cyclopentyl-4-[(prop-2-enoylamino)methyl]benzamide
CAS 2361785-01-3C18H21N3O2
![(E)-4-(Dimethylamino)-N-[(5-phenoxypyridin-2-yl)methyl]but-2-enamide chemical structure, C18H21N3O2, CAS 2411325-85-2](/s/XIEXKZQLWMCEMG-RMKNXTFCSA-N.svg)
(E)-4-(Dimethylamino)-N-[(5-phenoxypyridin-2-yl)methyl]but-2-enamide
CAS 2411325-85-2C18H21N3O2
![N-[(1H-Indol-4-yl)methyl]-1-(prop-2-enoyl)piperidine-4-carboxamide chemical structure, C18H21N3O2, CAS 2411318-59-5](/s/GVCHSQDYWHCFIU-UHFFFAOYSA-N.svg)
N-[(1H-Indol-4-yl)methyl]-1-(prop-2-enoyl)piperidine-4-carboxamide
CAS 2411318-59-5C18H21N3O2
![(7,7-Dimethyl-1-phenyl-6,8-dihydro-4H-pyrazolo[4,3-c]azepin-5-yl)-(oxiran-2-yl)methanone chemical structure, C18H21N3O2, CAS 2411291-14-8](/s/SQMYKDGZDZBHAY-UHFFFAOYSA-N.svg)
(7,7-Dimethyl-1-phenyl-6,8-dihydro-4H-pyrazolo[4,3-c]azepin-5-yl)-(oxiran-2-yl)methanone
CAS 2411291-14-8C18H21N3O2
![5-Cyclopropyl-3-(4-{[1-(cyclopropylmethyl)aziridin-2-yl]methoxy}phenyl)-1,2,4-oxadiazole chemical structure, C18H21N3O2, CAS 2418663-46-2](/s/QXXKQYRQMWPQTO-UHFFFAOYSA-N.svg)
5-Cyclopropyl-3-(4-{[1-(cyclopropylmethyl)aziridin-2-yl]methoxy}phenyl)-1,2,4-oxadiazole
CAS 2418663-46-2C18H21N3O2
![2-[1-(Oxolane-3-carbonyl)piperidin-4-yl]-1,8-naphthyridine chemical structure, C18H21N3O2, CAS 2640948-37-2](/s/SYXGZFHQYRJQHR-UHFFFAOYSA-N.svg)
2-[1-(Oxolane-3-carbonyl)piperidin-4-yl]-1,8-naphthyridine
CAS 2640948-37-2C18H21N3O2
![3-Methyl-4-{[1-(pyridine-3-carbonyl)piperidin-4-yl]methoxy}pyridine chemical structure, C18H21N3O2, CAS 2640845-47-0](/s/JASJYZNGFLDSRI-UHFFFAOYSA-N.svg)
3-Methyl-4-{[1-(pyridine-3-carbonyl)piperidin-4-yl]methoxy}pyridine
CAS 2640845-47-0C18H21N3O2
![2-[2-(Pyrrolidine-1-carbonyl)morpholin-4-yl]quinoline chemical structure, C18H21N3O2, CAS 2640974-23-6](/s/GSIULJCGJMGVMJ-UHFFFAOYSA-N.svg)
2-[2-(Pyrrolidine-1-carbonyl)morpholin-4-yl]quinoline
CAS 2640974-23-6C18H21N3O2
![N-[4-(N-Hydroxycarbamimidoyl)phenyl]-4-tert-butyl-benzamide chemical structure, C18H21N3O2](/s/id-2908825.svg)
N-[4-(N-Hydroxycarbamimidoyl)phenyl]-4-tert-butyl-benzamide
C18H21N3O2
![Imicro-[2-(4-Methylphenyl)hydrazinylidene]-2-pyridinehexanoic acid chemical structure, C18H21N3O2, CAS 620590-32-1](/s/BMVJPCHIZHZLEM-UHFFFAOYSA-N.svg)
Imicro-[2-(4-Methylphenyl)hydrazinylidene]-2-pyridinehexanoic acid
CAS 620590-32-1C18H21N3O2
2-Amino-N-(1-amino-1-oxo-3-phenylpropan-2-yl)-3-phenylpropanamide
CAS 858213-61-3C18H21N3O2
![N-{4-[(E)-amino(hydroxyimino)methyl]phenyl}-4-tert-butylbenzamide chemical structure, C18H21N3O2](/s/id-5351126.svg)
N-{4-[(E)-amino(hydroxyimino)methyl]phenyl}-4-tert-butylbenzamide
C18H21N3O2
![Benzamide, N-hydroxy-4-[4-(phenylmethyl)-1-piperazinyl]- chemical structure, C18H21N3O2, CAS 603985-81-5](/s/LEJMYEUPGWJJQA-UHFFFAOYSA-N.svg)
Benzamide, N-hydroxy-4-[4-(phenylmethyl)-1-piperazinyl]-
CAS 603985-81-5C18H21N3O2
1,3-Dibenzyl-5-nitrohexahydropyrimidine
CAS 4065-01-4C18H21N3O2
2-(4-Aminophenoxy)-1-(4-phenyl-1-piperazinyl)ethanone
CAS 110506-43-9C18H21N3O2
2-(2H-Benzotriazol-2-yl)-5-(1-ethylbutoxy)phenol
CAS 142246-42-2C18H21N3O2
N-(3-(1-Methyl-6-oxo-1,6-dihydropyridazin-3-yl)phenyl)cyclohexanecarboxamide
CAS 941920-63-4C18H21N3O2
![4-{[5-(2,7-Diazaspiro[4.4]nonan-2-yl)pyridin-3-yl]oxy}phenol chemical structure, C18H21N3O2, CAS 646056-55-5](/s/IFLUWYHOLVWLJK-UHFFFAOYSA-N.svg)
4-{[5-(2,7-Diazaspiro[4.4]nonan-2-yl)pyridin-3-yl]oxy}phenol
CAS 646056-55-5C18H21N3O2
N-(3-Cyano-4-methyl-1-propyl-1H-pyrrol-2-yl)-2-ethoxybenzamide
CAS 804519-28-6C18H21N3O2
amino}-N-methylacetamide chemical structure, C18H21N3O2, CAS 1333765-58-4](/s/MSTQPXGRPCUAIJ-UHFFFAOYSA-N.svg)
N-(1-Cyano-1-methylethyl)-2-{[(furan-2-yl)methyl](phenyl)amino}-N-methylacetamide
CAS 1333765-58-4C18H21N3O2
Methyl 2-(4-(p-tolyl)piperazin-1-yl)isonicotinate
CAS 1312662-68-2C18H21N3O2
![N-(2-Cyclopropylethoxy)-2-[(4-pyridinylmethyl)amino]benzamide chemical structure, C18H21N3O2, CAS 854378-69-1](/s/NLVSXWDHQVRRLG-UHFFFAOYSA-N.svg)
N-(2-Cyclopropylethoxy)-2-[(4-pyridinylmethyl)amino]benzamide
CAS 854378-69-1C18H21N3O2
5-(4-Cyanophenyl)-2-isopropyl-2H-pyrazole-3-carboxylic acid tert-butyl ester
CAS 1219019-32-5C18H21N3O2
4-(1-Amino-2-oxopentyl)-N-(2-aminophenyl)benzamide
CAS 656261-16-4C18H21N3O2
- 2-[3-(Hydroxymethyl)phenyl]-1-[4-(3-pyridinyl)-1-piperazinyl]ethanone1400757-82-5C18H21N3O2
- N-(1-Cyanocyclobutyl)-1-(2,3-dimethylphenyl)-5-oxopyrrolidine-3-carboxamide1371930-23-2C18H21N3O2
- Benzyl 5-(cyclopropylamino)-4,5,6,7-tetrahydro-2H-indazole-2-carboxylate1431311-67-9C18H21N3O2
- Benzyl cyclopropyl(4,5,6,7-tetrahydro-1H-indazol-5-yl)carbamate1431308-11-0C18H21N3O2
- N-(1-Hydroxyethyl)-6-methyl-9,10-didehydroergoline-8-carboximidic acidC18H21N3O2
- Benzyl 2-(2-aminopyridin-3-yl)piperidine-1-carboxylate1352516-41-6C18H21N3O2
- Benzyl 2-(2-(methylamino)pyridin-3-yl)pyrrolidine-1-carboxylate1352516-92-7C18H21N3O2
- Benzyl 2-(6-amino-4-methylpyridin-3-yl)pyrrolidine-1-carboxylate1352511-79-5C18H21N3O2
- Benzyl 2-(6-amino-2-methylpyridin-3-yl)pyrrolidine-1-carboxylate1352499-46-7C18H21N3O2
- N1-(2,6-Diethylphenyl)-N2-(2-pyridinylmethyl)ethanediamide1796147-75-5C18H21N3O2
- 1-Cyclohexyl-2-(7-methoxy-5H-imidazo[1',5':1,2]pyrrolo[3,4-c]pyridin-5-yl)ethan-1-one1884565-51-8C18H21N3O2
- Benzyl 2-[(6-cyclopentylpyrimidin-4-yl)amino]acetate2098108-57-5C18H21N3O2
- 2-Methyl-4-{[1-(pyridine-4-carbonyl)piperidin-4-yl]methoxy}pyridine2380034-09-1C18H21N3O2
- 2-Methyl-4-{[1-(pyridine-3-carbonyl)piperidin-4-yl]methoxy}pyridine2380068-12-0C18H21N3O2
- 2-Methyl-4-{[1-(pyridine-2-carbonyl)piperidin-4-yl]methoxy}pyridine2379950-91-9C18H21N3O2
- 2-{[1-(3-Methylbenzoyl)piperidin-3-yl]methoxy}pyrimidine2379987-73-0C18H21N3O2
- 2-(4-Ethoxyphenyl)-5-(2-methylpropyl)-4H,5H-pyrazolo[1,5-a]pyrazin-4-one2325526-78-9C18H21N3O2
- 2-{[1-(3-Methylbenzoyl)piperidin-4-yl]methoxy}pyrimidine2379984-32-2C18H21N3O2
- 3-Methyl-2-{[1-(pyridine-4-carbonyl)piperidin-4-yl]methoxy}pyridine2380043-51-4C18H21N3O2
- 3-Methyl-2-{[1-(pyridine-3-carbonyl)piperidin-4-yl]methoxy}pyridine2380043-49-0C18H21N3O2
- 2-Methyl-6-{[1-(pyridine-4-carbonyl)piperidin-3-yl]methoxy}pyridine2380009-39-0C18H21N3O2
- 3-Methyl-2-{[1-(pyridine-2-carbonyl)piperidin-4-yl]methoxy}pyridine2379950-81-7C18H21N3O2
- 2-Methyl-4-{[1-(pyridine-4-carbonyl)piperidin-3-yl]methoxy}pyridine2379975-31-0C18H21N3O2
- 2-Methyl-4-{[1-(pyridine-3-carbonyl)piperidin-3-yl]methoxy}pyridine2380008-79-5C18H21N3O2
- 2-(3-Methoxy-1-methyl-1H-pyrazole-4-carbonyl)-6-phenyl-2-azaspiro[3.3]heptane2379977-62-3C18H21N3O2
- 2-Cyclopropyl-1-[1-(oxolane-2-carbonyl)azetidin-3-yl]-1H-1,3-benzodiazole2379971-61-4C18H21N3O2
- N-Phenyl-3-[(pyridin-4-yloxy)methyl]piperidine-1-carboxamide2380061-30-1C18H21N3O2
- 5-Methyl-2-{[1-(3-methylbenzoyl)piperidin-4-yl]oxy}pyrimidine2379972-51-5C18H21N3O2
- 2-{[1-(3,5-Dimethylbenzoyl)azetidin-3-yl]methyl}-6-methyl-2,3-dihydropyridazin-3-one2320575-63-9C18H21N3O2
- 2-{[1-(3,4-Dimethylbenzoyl)azetidin-3-yl]methyl}-6-methyl-2,3-dihydropyridazin-3-one2310205-29-7C18H21N3O2
- 6-Methyl-2-({1-[2-(3-methylphenyl)acetyl]azetidin-3-yl}methyl)-2,3-dihydropyridazin-3-one2319806-22-7C18H21N3O2
- 6-Methyl-2-({1-[2-(4-methylphenyl)acetyl]azetidin-3-yl}methyl)-2,3-dihydropyridazin-3-one2320382-50-9C18H21N3O2
- 6-Methyl-2-({1-[2-(2-methylphenyl)acetyl]azetidin-3-yl}methyl)-2,3-dihydropyridazin-3-one2309538-86-9C18H21N3O2
- 4-{[(6-Cyclobutylpyrimidin-4-yl)amino]methyl}-3,4-dihydro-2H-1-benzopyran-4-ol2380175-64-2C18H21N3O2
- 3-[(1-Cyclopropanecarbonylpiperidin-4-yl)methyl]-3,4-dihydroquinazolin-4-one2380085-92-5C18H21N3O2
- N-[4-({3-[(Pyridin-3-yloxy)methyl]azetidin-1-yl}methyl)phenyl]acetamide2380063-36-3C18H21N3O2
- Benzyl (4-(piperazin-1-yl)phenyl)carbamate1395030-32-6C18H21N3O2
- 2-(3-Methoxyphenyl)-N-methyl-N-[1-(pyridin-2-yl)azetidin-3-yl]acetamide2415518-31-7C18H21N3O2
- 2-Ethoxy-N-methyl-N-[1-(pyridin-2-yl)azetidin-3-yl]benzamide2415601-62-4C18H21N3O2
- 1-Benzyl-4-[(5-cyclopropyl-1,2-oxazol-3-yl)methyl]piperazin-2-one2548983-74-8C18H21N3O2
- N-(Cyanomethyl)-N-methyl-4-phenyl-1-(prop-2-enoyl)piperidine-4-carboxamide2411315-03-0C18H21N3O2
- Phenylmethyl 3-[(2-aminophenyl)amino]-1-pyrrolidinecarboxylate2565840-82-4C18H21N3O2
- 11-[(1-Methyl-2-oxo-4-pyridinyl)methyl]-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-6-one2742050-18-4C18H21N3O2
- 1-((5-Azidopentyl)oxy)-2-(benzyloxy)benzene2990524-65-5C18H21N3O2
- 6-(4-Methyl-1-piperazinyl)-4-(o-tolyl)nicotinic Acid2347562-52-9C18H21N3O2
- Phenyl (6-(2-methylpiperidin-1-yl)pyridin-3-yl)carbamate2803882-86-0C18H21N3O2
- N-(1-Cyanocyclohexyl)-1-methyl-2-oxo-1,2,3,4-tetrahydroquinoline-6-carboxamide2374063-25-7C18H21N3O2
- 1-Propanoyl-N-(quinolin-3-yl)piperidine-3-carboxamide2187409-05-6C18H21N3O2
- L-Alanyl-N-naphthalen-2-yl-L-prolinamide76123-01-8C18H21N3O2
- 1-Benzoyl-4-[(5-cyclopropyl-1,2-oxazol-3-yl)methyl]piperazine2877766-87-3C18H21N3O2
- 4-[3-(Morpholine-4-carbonyl)pyrrolidin-1-yl]quinoline2877666-30-1C18H21N3O2
- 1-[3-(Morpholine-4-carbonyl)pyrrolidin-1-yl]isoquinoline2877635-98-6C18H21N3O2
- 3-[(2-Methylpyridin-4-yl)oxy]-N-(2-phenylethyl)azetidine-1-carboxamide2877750-90-6C18H21N3O2
- N-(1-Cyano-4-methylcyclohexyl)-4-(prop-2-enamido)benzamide2411261-71-5C18H21N3O2
- 2-{5-[2-(2-Methoxyethoxy)phenyl]-1H-1,3-benzodiazol-2-yl}ethan-1-amine2680533-81-5C18H21N3O2
- N-Cyclopropyl-1-(6-methoxyquinolin-2-yl)pyrrolidine-3-carboxamide2877688-71-4C18H21N3O2
- 2-[3-(Morpholine-4-carbonyl)pyrrolidin-1-yl]quinoline2877688-39-4C18H21N3O2
- 6-Methoxy-4-[3-(pyrrolidine-1-carbonyl)azetidin-1-yl]quinoline2877634-62-1C18H21N3O2
- 6-Methoxy-2-[3-(pyrrolidine-1-carbonyl)azetidin-1-yl]quinoline2877640-23-6C18H21N3O2
- tert-Butyl (2-(9H-pyrido[2,3-b]indol-9-yl)ethyl)carbamate1942834-88-9C18H21N3O2
- Methyl 3-((6-phenylpyridazin-3-yl)amino)cyclohexane-1-carboxylate2803937-51-9C18H21N3O2
- Ethyl 4-(1,2,3,4-tetrahydroquinoxalin-2-ylmethylamino)benzoate23792-11-2C18H21N3O2
- 10-[3-(Dimethylamino)propyl]-1-(hydroxyamino)acridin-9(10H)-one65782-81-2C18H21N3O2
- N,N-Di(propan-2-yl)-3-(pyridine-4-carbonyl)pyridine-4-carboxamide88329-49-1C18H21N3O2
- 5-(4-Nitrophenyl)-1,2,3,4,4a,5,7,8,9,10-decahydrobenzo[c]cinnoline89546-95-2C18H21N3O2
- N-(2,3-Dimethylphenyl)-2-(4-oxo-3,4,5,6,7,8-hexahydroquinazolin-3-yl)acetamide1251677-89-0C18H21N3O2
- Peficitinib impurity 14944123-02-8C18H21N3O2
- 2-(2-Aminoethyl)-6-(butylamino)-1H-benzo[de]isoquinoline-1,3(2H)-dione150588-47-9C18H21N3O2
- 1-{4-[(E)-{4-[Ethyl(2-hydroxyethyl)amino]phenyl}diazenyl]phenyl}ethan-1-one478612-73-6C18H21N3O2
- N-{[4-(Dimethylamino)phenyl]carbamoyl}-3-phenylpropanamide85208-72-6C18H21N3O2
- 4-(Diphenylmethyl)-N-hydroxypiperazine-1-carboxamide919996-73-9C18H21N3O2
- 3-Acetylamino-4-[2-(o-acetylaminophenyl)ethyl]aniline51959-78-5C18H21N3O2
- Phenol, 4-[2-[4-(diethylamino)phenyl]diazenyl]-, 1-acetate855407-24-8C18H21N3O2
- 4-(5-(Hydroxy(phenyl)methyl)-3-methylpyridin-2-yl)piperazine-1-carbaldehyde1355222-41-1C18H21N3O2
- Ethyl 2,7,7-trimethyl-5-phenyl-4,7-dihydropyrazolo[1,5-A]pyrimidine-3-carboxylate1207507-51-4C18H21N3O2
- 1-(2-Methoxypyridin-4-yl)-4-(1-phenylethyl)piperazin-2-one2380087-60-3C18H21N3O2
Frequently asked questions
What is the molar mass of C18H21N3O2?
The molar mass of C18H21N3O2 is 311.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 311.1634 Da.
How many compounds have the formula C18H21N3O2?
CompoundList lists 434 compounds with the molecular formula C18H21N3O2, including N-(Cyanomethyl)-N-cyclopentyl-4-[(prop-2-enoylamino)methyl]benzamide, (E)-4-(Dimethylamino)-N-[(5-phenoxypyridin-2-yl)methyl]but-2-enamide, N-[(1H-Indol-4-yl)methyl]-1-(prop-2-enoyl)piperidine-4-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 C18H21N3O2?
C18H21N3O2 has a degree of unsaturation of 10. 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.