Molecular formula
C18H18N6O3
60 compounds have this formula on CompoundList.
- Molar mass
- 366.38g/mol
- Monoisotopic mass
- 366.1440Da
- Atoms
- 45
- Elements
- 4
- Rings plus double bonds
- 13
The formula C18H18N6O3 describes a molecule made of 18 carbon atoms, 18 hydrogen atoms, 6 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 × 1859.01%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 184.95%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 622.94%14.007 × 6 = 84.042 g/mol
- O Oxygen × 313.10%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H18N6O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 60 of 60 compounds
![N'-[2-(4-Methylphenoxy)-1-oxoethyl]-2-(5-phenyl-2-tetrazolyl)acetohydrazide chemical structure, C18H18N6O3, CAS 493003-25-1](/s/PQONJSRKTLAQLC-UHFFFAOYSA-N.svg)
N'-[2-(4-Methylphenoxy)-1-oxoethyl]-2-(5-phenyl-2-tetrazolyl)acetohydrazide
CAS 493003-25-1C18H18N6O3
N4-benzyl-N2-(4-methoxyphenyl)-5-nitropyrimidine-2,4,6-triamine
CAS 674814-67-6C18H18N6O3
![5-Amino-1-{[(2-methoxyphenyl)carbamoyl]methyl}-N-phenyl-1H-1,2,3-triazole-4-carboxamide chemical structure, C18H18N6O3, CAS 901017-85-4](/s/CBHQLVSKRVBYFX-UHFFFAOYSA-N.svg)
5-Amino-1-{[(2-methoxyphenyl)carbamoyl]methyl}-N-phenyl-1H-1,2,3-triazole-4-carboxamide
CAS 901017-85-4C18H18N6O3
2-(3-Methoxyphenoxy)-N'-(1-(3-(1H-tetraazol-1-yl)PH)ethylidene)acetohydrazide
CAS 478252-07-2C18H18N6O3
![2-[(4-Methoxy-3,5-dimethylpyridin-2-yl)methyl]-8-(3-methyl-1,2,4-oxadiazol-5-yl)[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one chemical structure, C18H18N6O3, CAS 1396857-51-4](/s/AKFASEKISJVQGE-UHFFFAOYSA-N.svg)
2-[(4-Methoxy-3,5-dimethylpyridin-2-yl)methyl]-8-(3-methyl-1,2,4-oxadiazol-5-yl)[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one
CAS 1396857-51-4C18H18N6O3
![Ethyl N-[5-amino-3-[methyl(phenyl)carbamoyl]pyrido[3,4-b]pyrazin-7-yl]carbamate chemical structure, C18H18N6O3, CAS 83269-14-1](/s/LSRDZPKTSCKGIL-UHFFFAOYSA-N.svg)
Ethyl N-[5-amino-3-[methyl(phenyl)carbamoyl]pyrido[3,4-b]pyrazin-7-yl]carbamate
CAS 83269-14-1C18H18N6O3
6-(Furan-2-yl)-2-(2-oxo-2-(4-(pyrimidin-2-yl)piperazin-1-yl)ethyl)pyridazin-3(2H)-one
CAS 1251604-22-4C18H18N6O3
![N-[6-(4-Morpholinyl)-3-pyridinyl]-5-(phenylamino)-1,3,4-oxadiazole-2-carboxamide chemical structure, C18H18N6O3, CAS 892484-46-7](/s/RSFJMISTKPRTLU-UHFFFAOYSA-N.svg)
N-[6-(4-Morpholinyl)-3-pyridinyl]-5-(phenylamino)-1,3,4-oxadiazole-2-carboxamide
CAS 892484-46-7C18H18N6O3
![2-(4,7,8-Trimethyl-1,3-dioxo-6-phenylpurino[7,8-a]imidazol-2-yl)acetamide chemical structure, C18H18N6O3, CAS 876670-17-6](/s/DIRJYWPYEMLKBF-UHFFFAOYSA-N.svg)
2-(4,7,8-Trimethyl-1,3-dioxo-6-phenylpurino[7,8-a]imidazol-2-yl)acetamide
CAS 876670-17-6C18H18N6O3
![2-[4,7-Dimethyl-6-(2-methylphenyl)-1,3-dioxopurino[7,8-a]imidazol-2-yl]acetamide chemical structure, C18H18N6O3, CAS 876669-41-9](/s/LRZAKOBOVPTGQG-UHFFFAOYSA-N.svg)
2-[4,7-Dimethyl-6-(2-methylphenyl)-1,3-dioxopurino[7,8-a]imidazol-2-yl]acetamide
CAS 876669-41-9C18H18N6O3
![2-[4,7-Dimethyl-6-(3-methylphenyl)-1,3-dioxopurino[7,8-a]imidazol-2-yl]acetamide chemical structure, C18H18N6O3, CAS 876669-47-5](/s/RBZSQYKHAYEUFJ-UHFFFAOYSA-N.svg)
2-[4,7-Dimethyl-6-(3-methylphenyl)-1,3-dioxopurino[7,8-a]imidazol-2-yl]acetamide
CAS 876669-47-5C18H18N6O3
![2-[4,7-Dimethyl-6-(4-methylphenyl)-1,3-dioxopurino[7,8-a]imidazol-2-yl]acetamide chemical structure, C18H18N6O3, CAS 876669-52-2](/s/KQOUFZWOYKLUIO-UHFFFAOYSA-N.svg)
2-[4,7-Dimethyl-6-(4-methylphenyl)-1,3-dioxopurino[7,8-a]imidazol-2-yl]acetamide
CAS 876669-52-2C18H18N6O3
N2-(4-methoxyphenyl)-5-nitro-N4-(p-tolyl)pyrimidine-2,4,6-triamine
CAS 799829-72-4C18H18N6O3
![N-[4-(Acetylamino)phenyl]-5-amino-1-(4-methoxyphenyl)-1H-1,2,3-triazole-4-carboxamide chemical structure, C18H18N6O3, CAS 953850-27-6](/s/ZDIOVNLKTDSLJH-UHFFFAOYSA-N.svg)
N-[4-(Acetylamino)phenyl]-5-amino-1-(4-methoxyphenyl)-1H-1,2,3-triazole-4-carboxamide
CAS 953850-27-6C18H18N6O3
![2-(6-Benzyl-4,7-dimethyl-1,3-dioxopurino[7,8-a]imidazol-2-yl)acetamide chemical structure, C18H18N6O3, CAS 876670-75-6](/s/QAKFRCKSPUDVCD-UHFFFAOYSA-N.svg)
2-(6-Benzyl-4,7-dimethyl-1,3-dioxopurino[7,8-a]imidazol-2-yl)acetamide
CAS 876670-75-6C18H18N6O3
![7,9-Dimethyl-1-(2-oxopropyl)-3-phenyl-7,9-dihydro-[1,2,4]triazino[3,4-f]purine-6,8(1H,4H)-dione chemical structure, C18H18N6O3, CAS 898448-51-6](/s/LDNWADRMBQEYJN-UHFFFAOYSA-N.svg)
7,9-Dimethyl-1-(2-oxopropyl)-3-phenyl-7,9-dihydro-[1,2,4]triazino[3,4-f]purine-6,8(1H,4H)-dione
CAS 898448-51-6C18H18N6O3
![N-(1,3-Benzodioxol-5-yl)-1-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperidine-4-carboxamide chemical structure, C18H18N6O3, CAS 1081115-13-0](/s/IEHBSIGPQJWTBX-UHFFFAOYSA-N.svg)
N-(1,3-Benzodioxol-5-yl)-1-([1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperidine-4-carboxamide
CAS 1081115-13-0C18H18N6O3
![N-(2-((6-(2-Methyl-1H-imidazol-1-yl)pyrimidin-4-yl)amino)ethyl)benzo[d][1,3]dioxole-5-carboxamide chemical structure, C18H18N6O3, CAS 1170569-70-6](/s/BACLZAUASVTJQL-UHFFFAOYSA-N.svg)
N-(2-((6-(2-Methyl-1H-imidazol-1-yl)pyrimidin-4-yl)amino)ethyl)benzo[d][1,3]dioxole-5-carboxamide
CAS 1170569-70-6C18H18N6O3
![4-({[3-(3,5-Dimethyl-1H-pyrazol-1-yl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)benzamide chemical structure, C18H18N6O3, CAS 1219587-59-3](/s/ICWSVYBLFNOFMS-UHFFFAOYSA-N.svg)
4-({[3-(3,5-Dimethyl-1H-pyrazol-1-yl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)benzamide
CAS 1219587-59-3C18H18N6O3
N-(6-Morpholinopyrimidin-4-yl)-2-(4-oxoquinazolin-3(4H)-yl)acetamide
CAS 1396860-11-9C18H18N6O3
2-(3-(Furan-2-yl)-6-oxopyridazin-1(6H)-yl)-N-(6-(pyrrolidin-1-yl)pyrimidin-4-yl)acetamide
CAS 1396843-14-3C18H18N6O3
![6-Methyl-4-oxo-N-[4-(2-oxopyrrolidin-1-yl)benzyl]-4,5-dihydro[1,2,3]triazolo[1,5-a]pyrazine-3-carboxamide chemical structure, C18H18N6O3, CAS 1798457-88-1](/s/HFQSMOUSVRSKLN-UHFFFAOYSA-N.svg)
6-Methyl-4-oxo-N-[4-(2-oxopyrrolidin-1-yl)benzyl]-4,5-dihydro[1,2,3]triazolo[1,5-a]pyrazine-3-carboxamide
CAS 1798457-88-1C18H18N6O3
![4-(3-Ethyl-1,7-dimethyl-2,4-dioxo-1,3,5-trihydro-4-imidazolino[1,2-h]purin-8-y l)benzamide chemical structure, C18H18N6O3, CAS 1185343-17-2](/s/FYXQBAPWGUVFHA-UHFFFAOYSA-N.svg)
4-(3-Ethyl-1,7-dimethyl-2,4-dioxo-1,3,5-trihydro-4-imidazolino[1,2-h]purin-8-y l)benzamide
CAS 1185343-17-2C18H18N6O3
2-(2-(4-(6-(Furan-2-yl)pyridazin-3-yl)piperazin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one
CAS 1203012-22-9C18H18N6O3
- N-(2,3-Dihydro-1,4-benzodioxin-6-yl)-1-[6-(dimethylamino)pyrimidin-4-yl]-1H-imidazole-4-carboxamide1251560-96-9C18H18N6O3
- 2-Methyl-6-(3-(4-(phenoxymethyl)-1H-1,2,3-triazol-1-yl)azetidine-1-carbonyl)pyridazin-3(2H)-one2034402-31-6C18H18N6O3
- Benzoic acid, 4-(6,9-dihydro-9-methyl-5-oxo-6-propyl-5H-1,2,4-triazolo(3,4-i)purin-3-yl)-, methyl ester135445-93-1C18H18N6O3
- (Z)-N-(2,4-Dimethylphenyl)-3-(1-methylpyrazol-4-yl)-2-(4-nitropyrazol-1-yl)prop-2-enamide1005583-06-1C18H18N6O3
- N-[(E)-(2,3-Dimethoxyphenyl)methylideneamino]-2-(5-phenyltetrazol-2-yl)acetamide420107-05-7C18H18N6O3
- 5-(4-(5-(5-Methyl-1,2,4-oxadiazol-3-yl)pyridin-2-yl)piperazine-1-carbonyl)pyridin-2(1H)-one1396853-46-5C18H18N6O3
- 1-(2-((6-(1H-Pyrrol-1-yl)pyrimidin-4-yl)amino)ethyl)-3-(benzo[d][1,3]dioxol-5-yl)urea1396625-21-0C18H18N6O3
- N-(1-([1,2,4]Triazolo[4,3-a]pyrazin-8-yl)pyrrolidin-3-yl)-2-(benzo[d][1,3]dioxol-5-yl)acetamide2034422-55-2C18H18N6O3
- N-(1-([1,2,4]Triazolo[4,3-b]pyridazin-6-yl)pyrrolidin-3-yl)-2-(benzo[d][1,3]dioxol-5-yl)acetamide2034301-09-0C18H18N6O3
- 3-(1-(5-Methylpyrazine-2-carbonyl)piperidin-4-yl)pyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione2034379-85-4C18H18N6O3
- 2-Amino-11,12-dimethoxy-8,9,13b,14-tetrahydro-6H-[1,2,4]triazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one866018-19-1C18H18N6O3
- 2H-Tetrazole-2-acetic acid, 5-(3,4-dimethoxyphenyl)-, (phenylmethylene)hydrazide94772-02-8C18H18N6O3
- N-((1-(3,4-Dimethylphenyl)-1H-tetrazol-5-yl)methyl)-2-(4-nitrophenyl)acetamide897622-53-6C18H18N6O3
- 3,7,9-Trimethyl-1-phenacyl-4H-purino[8,7-c][1,2,4]triazine-6,8-dione941936-44-3C18H18N6O3
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-((1-(3,4-dimethylphenyl)-1H-tetrazol-5-yl)methyl)urea941964-53-0C18H18N6O3
- N-(4-Ethoxyphenyl)-3-[3-(pyrimidin-2-yl)-1,2,4-oxadiazol-5-yl]azetidine-1-carboxamide1324506-63-9C18H18N6O3
- N-(2-Ethoxyphenyl)-3-[3-(pyrimidin-2-yl)-1,2,4-oxadiazol-5-yl]azetidine-1-carboxamide1331270-64-4C18H18N6O3
- 4-(1,3,6,7-Tetramethyl-2,4-dioxo-1,2,3,4-tetrahydro-8H-imidazo[2,1-f]purin-8-yl)benzamide1374680-05-3C18H18N6O3
- 2-(2-Oxo-2-(3-(4-(phenoxymethyl)-1H-1,2,3-triazol-1-yl)azetidin-1-yl)ethyl)pyridazin-3(2H)-one2034402-64-5C18H18N6O3
- N-(4-(1H-Tetrazol-1-yl)phenyl)-6-((tetrahydro-2H-pyran-4-yl)oxy)nicotinamide2034295-09-3C18H18N6O3
- Benzo[d][1,3]dioxol-5-yl(4-(3-methyl-[1,2,4]triazolo[4,3-a]pyrazin-8-yl)piperazin-1-yl)methanone2034376-43-5C18H18N6O3
- N-((1-Phenyl-1H-tetrazol-5-yl)methyl)-2-((tetrahydrofuran-3-yl)oxy)nicotinamide2034299-53-9C18H18N6O3
- 6-Morpholino-N-((3-phenyl-1,2,4-oxadiazol-5-yl)methyl)pyrimidine-4-carboxamide1904105-52-7C18H18N6O3
- Methyl 4-[(1-{[1,2,4]triazolo[4,3-b]pyridazin-6-yl}pyrrolidin-3-yl)carbamoyl]benzoate2034390-65-1C18H18N6O3
- N-(1-([1,2,4]Triazolo[4,3-b]pyridazin-6-yl)pyrrolidin-3-yl)-2,3-dihydrobenzo[b][1,4]dioxine-5-carboxamide2034336-92-8C18H18N6O3
- 1-(Benzo[d][1,3]dioxol-5-ylmethyl)-3-(2-(2-(pyrazin-2-yl)-1H-imidazol-1-yl)ethyl)urea2034451-28-8C18H18N6O3
- N-(2-(3-Oxo-3,5,6,7-tetrahydro-2H-cyclopenta[c]pyridazin-2-yl)ethyl)-2-(4-oxopyrido[2,3-d]pyrimidin-3(4H)-yl)acetamide2034226-86-1C18H18N6O3
- 1-(5,7-Dioxo-6-phenyl-5,6,7,8-tetrahydropyrimido[4,5-d]pyrimidin-2-yl)piperidine-4-carboxamide2195877-88-2C18H18N6O3
- 5-Cyclopropyl-N-(3-cyclopropyl-1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-1H-pyrazol-5-yl)isoxazole-3-carboxamide1206996-50-0C18H18N6O3
- N-({6-Methoxy-[1,2,4]triazolo[4,3-b]pyridazin-3-yl}methyl)-5-oxo-1-phenylpyrrolidine-3-carboxamide2097869-48-0C18H18N6O3
- N1-benzyl-N2-(3-methyl-1-(4-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)-1H-pyrazol-5-yl)oxalamide1013890-33-9C18H18N6O3
- 3-Cyclopropyl-N-(5-acetamido-2-methoxyphenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxamide2549053-75-8C18H18N6O3
- N-(p-(Dimethylamino)phenyl)-alpha-(5-methyl-2-(p-nitrophenyl)-2H-1,2,3-triazol-4-yl)nitrone13322-14-0C18H18N6O3
- (S)-4-((2-(3-(4-Aminopyrimidin-5-yl)-1,2,4-oxadiazol-5-yl)pyrrolidin-1-yl)methyl)benzoic acid1212724-58-7C18H18N6O3
- Piperazine,1-[(4-methoxy-7-pyrazinyl-1H-pyrrolo[2,3-c]pyridin-3-yl)oxoacetyl]-619331-40-7C18H18N6O3
- 3-(1H-Imidazol-1-yl)-6-[4-(3-nitrophenoxy)piperidin-1-yl]pyridazine921606-75-9C18H18N6O3
Frequently asked questions
What is the molar mass of C18H18N6O3?
The molar mass of C18H18N6O3 is 366.38 g/mol, calculated from standard atomic weights for 18 carbon atoms, 18 hydrogen atoms, 6 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 366.1440 Da.
How many compounds have the formula C18H18N6O3?
CompoundList lists 60 compounds with the molecular formula C18H18N6O3, including N'-[2-(4-Methylphenoxy)-1-oxoethyl]-2-(5-phenyl-2-tetrazolyl)acetohydrazide, N4-benzyl-N2-(4-methoxyphenyl)-5-nitropyrimidine-2,4,6-triamine, 5-Amino-1-{[(2-methoxyphenyl)carbamoyl]methyl}-N-phenyl-1H-1,2,3-triazole-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 C18H18N6O3?
C18H18N6O3 has a degree of unsaturation of 13. 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.