Molecular formula
C18H16N2O3
519 compounds have this formula on CompoundList.
- Molar mass
- 308.34g/mol
- Monoisotopic mass
- 308.1161Da
- Atoms
- 39
- Elements
- 4
- Rings plus double bonds
- 12
The formula C18H16N2O3 describes a molecule made of 18 carbon atoms, 16 hydrogen atoms, 2 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 × 1870.12%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 165.23%1.008 × 16 = 16.128 g/mol
- N Nitrogen × 29.09%14.007 × 2 = 28.014 g/mol
- O Oxygen × 315.57%15.999 × 3 = 47.997 g/mol
Look up another formula
Compounds with the formula C18H16N2O3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 101 to 200 of 519 compounds
3-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde
CAS 381230-33-7C18H16N2O3
4-Hydroxy-N-(2-methoxyphenyl)-2-methylquinoline-6-carboxamide
CAS 941252-05-7C18H16N2O3
2-(1,3-Dioxoisoindol-2-yl)-N-ethyl-N-phenylacetamide
CAS 99275-60-2C18H16N2O3
N-(4-Methoxyphenyl)-2-methyl-4-oxo-1,4-dihydroquinoline-6-carboxamide
CAS 1015559-79-1C18H16N2O3
Alanine, N-benzoyl-3-phenyl-, cyanomethyl ester, L-
CAS 64187-45-7C18H16N2O3
![5-Methyl-2,3-diphenyldihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH)-dione chemical structure, C18H16N2O3, CAS 1005060-84-3](/s/JJOJNMDLZMOZAF-UHFFFAOYSA-N.svg)
5-Methyl-2,3-diphenyldihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH)-dione
CAS 1005060-84-3C18H16N2O3
4-(2,5-Dioxopyrrolidin-1-yl)-N-(3-methylphenyl)benzamide
CAS 328105-04-0C18H16N2O3
Azacridone A
CAS 150050-14-9C18H16N2O3
4-(1,3-Benzodioxol-5-yl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carbonitrile
CAS 314051-91-7C18H16N2O3
2H-Isoindole-2-acetamide, 1,3-dihydro-1,3-dioxo-N-(2-phenylethyl)-
CAS 88422-74-6C18H16N2O3
N-(2,6-Dimethylphenyl)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)acetamide
CAS 71344-56-4C18H16N2O3
N-(2,6-Dimethylphenyl)-2-(2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetamide
CAS 617697-23-1C18H16N2O3
6-(2-Furyl)-1-(4-methoxyphenyl)-1,5,6,7-tetrahydro-4H-indazol-4-one
CAS 896668-24-9C18H16N2O3
N-Benzyl-5-(4-methoxyphenyl)oxazole-4-carboxamide
CAS 932300-42-0C18H16N2O3
N-(2,4-Dimethylphenyl)-2-(2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetamide
CAS 313646-04-7C18H16N2O3
(E)-2-Cyano-N-(2-methoxyphenyl)-3-(4-methoxyphenyl)prop-2-enamide
CAS 173156-68-8C18H16N2O3
![(2Z)-8-Methoxy-2-[(4-methylphenyl)imino]-2H-chromene-3-carboxamide chemical structure, C18H16N2O3, CAS 324759-61-7](/s/JVTQLTAEGGXRGY-UHFFFAOYSA-N.svg)
(2Z)-8-Methoxy-2-[(4-methylphenyl)imino]-2H-chromene-3-carboxamide
CAS 324759-61-7C18H16N2O3
![3-[3-(4-Methylphenyl)-4-oxo-3,4-dihydroquinazolin-2-yl]propanoic acid chemical structure, C18H16N2O3, CAS 84312-87-8](/s/VMHYUORJTOJXRQ-UHFFFAOYSA-N.svg)
3-[3-(4-Methylphenyl)-4-oxo-3,4-dihydroquinazolin-2-yl]propanoic acid
CAS 84312-87-8C18H16N2O3
![(2Z)-8-Methoxy-2-[(2-methylphenyl)imino]-2H-chromene-3-carboxamide chemical structure, C18H16N2O3, CAS 915372-50-8](/s/YMRIJZHLHXOAPY-UHFFFAOYSA-N.svg)
(2Z)-8-Methoxy-2-[(2-methylphenyl)imino]-2H-chromene-3-carboxamide
CAS 915372-50-8C18H16N2O3
(Z)-6-Methoxy-2-(o-tolylimino)-2H-chromene-3-carboxamide
CAS 313234-09-2C18H16N2O3
![3-[(E)-[(4-Ethoxyphenyl)imino]methyl]-1H-indole-2-carboxylic acid chemical structure, C18H16N2O3, CAS 897767-09-8](/s/DAIXVKAYQPSNDH-UHFFFAOYSA-N.svg)
3-[(E)-[(4-Ethoxyphenyl)imino]methyl]-1H-indole-2-carboxylic acid
CAS 897767-09-8C18H16N2O3
1-Benzyl-3-(4-methoxyphenyl)-1H-pyrazole-5-carboxylic acid
CAS 959551-31-6C18H16N2O3
![(2Z)-6-Methoxy-2-[(4-methylphenyl)imino]-2H-chromene-3-carboxamide chemical structure, C18H16N2O3, CAS 313985-76-1](/s/VUARYBZHCNKYRD-UHFFFAOYSA-N.svg)
(2Z)-6-Methoxy-2-[(4-methylphenyl)imino]-2H-chromene-3-carboxamide
CAS 313985-76-1C18H16N2O3
N-(3,4-Dimethylphenyl)-2-(2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetamide
CAS 617694-80-1C18H16N2O3
- 4-[(4-Ethoxyanilino)methylene]-2-phenyl-1,3-oxazol-5(4H)-one312528-32-8C18H16N2O3
- (2Z)-6-Methoxy-2-[(3-methylphenyl)imino]-2H-chromene-3-carboxamide313234-15-0C18H16N2O3
- 3,4-Dimethoxy-N-quinolin-3-yl-benzamide200726-38-1C18H16N2O3
- N-(2,5-Dimethylphenyl)-2-(2,3-dioxo-2,3-dihydro-1H-indol-1-yl)acetamide609797-25-3C18H16N2O3
- (2Z)-8-Ethoxy-2-(phenylimino)-2H-chromene-3-carboxamide325799-86-8C18H16N2O3
- 5-(1,3-Benzodioxol-5-yl)-3-(3,5-dimethylphenyl)-1H-imidazol-2-one687583-55-7C18H16N2O3
- N-(3-Methoxy-4-(oxazol-5-yl)phenyl)-2-phenylacetamide267405-93-6C18H16N2O3
- N-[4-(8-Methyl-4-oxo-3,1-benzoxazin-2-yl)phenyl]propanamide496913-35-0C18H16N2O3
- 3-(2-(m-Tolyl)acetamido)benzofuran-2-carboxamide898354-93-3C18H16N2O3
- 2-(5-(Furan-2-yl)isoxazol-3-yl)-1-(2-methylindolin-1-yl)ethanone1105217-75-1C18H16N2O3
- N-Ethyl-2-oxo-N-(pyridin-4-ylmethyl)chromene-3-carboxamide380461-22-3C18H16N2O3
- (S)-3'-Hydroxy blebbistatin2097136-42-8C18H16N2O3
- N-(8-Methyl-11-oxo-10,11-dihydrodibenzo[b,f][1,4]oxazepin-2-yl)cyclopropanecarboxamide921891-46-5C18H16N2O3
- Imidazo(2,1-a)isoquinolin-5-ol, 2,3,5,6-tetrahydro-5-(1,3-benzodioxol-5-yl)-56882-48-5C18H16N2O3
- N-(4-Acetamidophenyl)-2H-chromene-3-carboxamide887346-37-4C18H16N2O3
- N-(5-Oxopyrrolidin-3-yl)-9H-xanthene-9-carboxamide1351588-95-8C18H16N2O3
- 2-(7-Methyl-2-oxo-2H-chromen-4-yl)-N-(pyridin-3-ylmethyl)acetamide919855-96-2C18H16N2O3
- 4-(6,7-Dimethoxy-2,4-Dihydroindeno[1,2-C]pyrazol-3-Yl)phenol268562-33-0C18H16N2O3
- MG 1894990614-63-4C18H16N2O3
- 4(3H)-Quinazolinone, 2-[(acetyloxy)methyl]-3-(2-methylphenyl)-52589-77-2C18H16N2O3
- 2-Phenoxy-N-((5-phenylisoxazol-3-yl)methyl)acetamide946262-26-6C18H16N2O3
- 1-(1-Carboxyethyl)-4,5-diphenyl-1H-imidazole 3-oxide881567-67-5C18H16N2O3
- 3-[(4-Methoxyphenyl)amino]-1-methyl-4-phenyl-1H-pyrrole-2,5-dione264206-76-0C18H16N2O3
- 2-(7-Methyl-2-oxo-2H-chromen-4-yl)-N-(pyridin-2-ylmethyl)acetamide919758-91-1C18H16N2O3
- N-(3-Methoxyphenyl)-2-(2-methyl-1H-indol-3-yl)-2-oxoacetamide852369-23-4C18H16N2O3
- N-(4-Methoxyphenyl)-2-(2-methyl-1H-indol-3-yl)-2-oxoacetamide852369-24-5C18H16N2O3
- (4-Methoxyphenyl)(5-(4-methoxyphenyl)-1H-imidazol-2-yl)methanone1097-25-2C18H16N2O3
- 1-Benzyl-3-(benzyloxy)-1H-pyrazole-4-carboxylic acid478968-62-6C18H16N2O3
- N-(3-Ethylphenyl)-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxamide946235-32-1C18H16N2O3
- 4-{[(1H-Indol-1-ylacetyl)amino]methyl}benzoic acid1219543-65-3C18H16N2O3
- N-[Cyano(2-methylphenyl)methyl]-2,3-dihydro-1,4-benzodioxine-5-carboxamide1376239-71-2C18H16N2O3
- N-Cyano-N-[2-(4-ethoxyphenyl)-2-oxoethyl]benzamide1197864-59-7C18H16N2O3
- 5-Methyl-4-(4-phenoxybenzyl)-1H-pyrazole-3-carboxylic acid1384167-54-7C18H16N2O3
- 2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)-N-(4-methylbenzyl)acetamide6120-34-9C18H16N2O3
- 2-(2-Oxo-2-(pyrrolidin-1-yl)ethyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione326007-76-5C18H16N2O3
- Benzyl 5-methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylate913376-49-5C18H16N2O3
- N-(3,4-Dimethylphenyl)-2-(1,3-dioxoisoindolin-2-yl)acetamide313267-26-4C18H16N2O3
- 3-Quinolinecarboxamide, 1,2-dihydro-4-hydroxy-1-methyl-N-(4-methylphenyl)-2-oxo-75483-05-5C18H16N2O3
- 3-Pyridinecarboxylic acid, 2-((1-ethyl-2-methyl-1H-indol-3-yl)carbonyl)-69898-42-6C18H16N2O3
- Methyl 1-(([1,1'-biphenyl]-4-yloxy)methyl)-1H-pyrazole-3-carboxylate1003988-82-6C18H16N2O3
- 1H-Indole-3-acetamide, N-(4-methoxyphenyl)-5-methyl-I+/--oxo-1334405-70-7C18H16N2O3
- 2-(Benzylimino)-6-methoxy-2H-chromene-3-carboxamide325804-93-1C18H16N2O3
- 2-(2-Propyl-1H-benzo[d]imidazole-1-carbonyl)benzoic acid380880-17-1C18H16N2O3
- 1-(4-Hydroxyphenyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid353263-80-6C18H16N2O3
- 1-(3-Hydroxyphenyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid347860-69-9C18H16N2O3
- (Z)-4-(4-Hydroxy-3-methoxybenzylidene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one1266797-62-9C18H16N2O3
- (3,5-Dimethoxyphenyl)-(2-phenyl-1H-imidazol-5-yl)methanone1253697-87-8C18H16N2O3
- (3,4-Dimethoxyphenyl)-(2-phenyl-1H-imidazol-5-yl)methanone1253697-88-9C18H16N2O3
- (4Z)-1-(3,4-Dimethylphenyl)-4-(4-hydroxybenzylidene)pyrazolidine-3,5-dione5548-50-5C18H16N2O3
- 1-(2-Hydroxyphenyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid360791-48-6C18H16N2O3
- 3-(5-{[(Pyridin-3-ylmethyl)amino]methyl}furan-2-yl)benzoic acid932160-15-1C18H16N2O3
- N-(3-Indolylformyl)-L-phenylalanine115627-41-3C18H16N2O3
- 4-Amino-3-hydroxy-N-(2-methoxyphenyl)-2-naphthamide23342-49-6C18H16N2O3
- 5-[4-(2-Phenylethoxy)phenyl]-1H-pyrazole-3-carboxylic acid1312165-35-7C18H16N2O3
- N-(1,3-Dioxo-2-phenyl-2,3-dihydro-1H-isoindol-4-yl)-2-methylpropanamide354120-28-8C18H16N2O3
- N-(4-Methoxyphenyl)-5-methyl-3-phenyl-1,2-oxazole-4-carboxamide309950-34-3C18H16N2O3
- N-(4-Acetamidophenyl)-3-methyl-1-benzofuran-2-carboxamide380571-18-6C18H16N2O3
- 2-Phenyl-3-(p-tolyl)dihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH)-dione1005266-95-4C18H16N2O3
- 3-[(E)-2-(3,4-Dimethoxyphenyl)ethenyl]-1H-quinoxalin-2-one868214-11-3C18H16N2O3
- 2-Pyridinecarboxylic acid, 3-[(1-ethyl-2-methyl-1H-indol-3-yl)carbonyl]-61433-54-3C18H16N2O3
- 3-(3-Benzyl-4-oxo-3,4-dihydroquinazolin-2-yl)propanoic acid84312-88-9C18H16N2O3
- 2-(3-Formyl-1H-indol-1-yl)-N-(4-methoxyphenyl)acetamide496960-30-6C18H16N2O3
- [(2-Phenylethyl)carbamoyl]methyl 4-cyanobenzoate728902-95-2C18H16N2O3
- 1-[(2,4-Dimethoxyphenyl)azo]-2-naphthol62293-32-7C18H16N2O3
- 2-Oxo-2-((1-phenylethyl)amino)ethyl 4-cyanobenzoate380484-51-5C18H16N2O3
- 1-Benzyl-3-(4-methoxyphenyl)-1H-pyrazole-4-carboxylic acid956437-88-0C18H16N2O3
- N-(Benzyloxy)-5-methyl-2-phenyloxazole-4-carboxamide929978-81-4C18H16N2O3
- N-(4-Ethoxyphenyl)-2-imino-2H-chromene-3-carboxamide891077-31-9C18H16N2O3
- 3,5-Pyrazolidinedione, 4-(2-benzoylethyl)-1-phenyl-25809-73-8C18H16N2O3
- (4E)-2-(4-Methoxyphenyl)-4-(methylaminomethylidene)isoquinoline-1,3-dione376610-57-0C18H16N2O3
- (E)-1-(3,4-Dihydro-2H-quinolin-1-yl)-3-(2-nitrophenyl)prop-2-en-1-one600123-37-3C18H16N2O3
- (2E)-2-Cyano-3-(2-hydroxy-5-methoxyphenyl)-N-(2-methylphenyl)prop-2-enamide380550-88-9C18H16N2O3
- 2-(2,3-Dioxoindol-1-yl)-N-ethyl-N-phenylacetamide824420-64-6C18H16N2O3
- [(2-Phenylethyl)carbamoyl]methyl 3-cyanobenzoate877156-44-0C18H16N2O3
- 3-Hydroxy-3-[2-oxo-2-(pyridin-4-yl)ethyl]-1-(prop-2-en-1-yl)-1,3-dihydro-2H-indol-2-one439091-27-7C18H16N2O3
- 3-(2,5-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde956206-42-1C18H16N2O3
Frequently asked questions
What is the molar mass of C18H16N2O3?
The molar mass of C18H16N2O3 is 308.34 g/mol, calculated from standard atomic weights for 18 carbon atoms, 16 hydrogen atoms, 2 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 308.1161 Da.
How many compounds have the formula C18H16N2O3?
CompoundList lists 519 compounds with the molecular formula C18H16N2O3, including 3-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde, 4-Hydroxy-N-(2-methoxyphenyl)-2-methylquinoline-6-carboxamide, 2-(1,3-Dioxoisoindol-2-yl)-N-ethyl-N-phenylacetamide. 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 C18H16N2O3?
C18H16N2O3 has a degree of unsaturation of 12. 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.