Molecular formula
C18H12N2O5
57 compounds have this formula on CompoundList.
- Molar mass
- 336.30g/mol
- Monoisotopic mass
- 336.0746Da
- Atoms
- 37
- Elements
- 4
- Rings plus double bonds
- 14
The formula C18H12N2O5 describes a molecule made of 18 carbon atoms, 12 hydrogen atoms, 2 nitrogen atoms and 5 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 × 1864.29%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 123.60%1.008 × 12 = 12.096 g/mol
- N Nitrogen × 28.33%14.007 × 2 = 28.014 g/mol
- O Oxygen × 523.79%15.999 × 5 = 79.995 g/mol
Look up another formula
Compounds with the formula C18H12N2O5
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 57 of 57 compounds
RefChem:854845
CAS 81395-54-2C18H12N2O5
![2-(7-Methoxy-2-oxo-2H-chromen-3-yl)-1H-benzo[d]imidazole-6-carboxylic acid chemical structure, C18H12N2O5, CAS 896370-65-3](/s/QLVVHKVFWNEXHS-UHFFFAOYSA-N.svg)
2-(7-Methoxy-2-oxo-2H-chromen-3-yl)-1H-benzo[d]imidazole-6-carboxylic acid
CAS 896370-65-3C18H12N2O5
1H-Isoindole-1,3(2H)-dione, 5,5'-oxybis[2-methyl-
CAS 27507-54-6C18H12N2O5
2-(3-Nitrophenyl)-2-oxoethyl quinoline-2-carboxylate
CAS 431069-18-0C18H12N2O5
![(3Z)-1-Acetyl-3-[2-(4-nitrophenyl)-2-oxoethylidene]indol-2-one chemical structure, C18H12N2O5, CAS 5238-39-1](/s/WNLAKPQEYJMQAE-GDNBJRDFSA-N.svg)
(3Z)-1-Acetyl-3-[2-(4-nitrophenyl)-2-oxoethylidene]indol-2-one
CAS 5238-39-1C18H12N2O5
2,2'-(1-Hydroxyethane-1,2-diyl)diisoindoline-1,3-dione
CAS 1415562-69-4C18H12N2O5
4-(2,4-Dinitrophenoxy)biphenyl
CAS 6312-88-5C18H12N2O5
3-(Indoline-1-carbonyl)-6-nitro-2H-chromen-2-one
CAS 799266-00-5C18H12N2O5
![1-{3-Nitrophenyl}-2-methyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione chemical structure, C18H12N2O5, CAS 849921-76-2](/s/NMRDKSGLVYEJMZ-UHFFFAOYSA-N.svg)
1-{3-Nitrophenyl}-2-methyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione
CAS 849921-76-2C18H12N2O5
![2-Methyl-1-(4-nitrophenyl)-1H-chromeno[2,3-c]pyrrole-3,9-dione chemical structure, C18H12N2O5, CAS 862193-11-1](/s/DBPXOCHTHNFXGC-UHFFFAOYSA-N.svg)
2-Methyl-1-(4-nitrophenyl)-1H-chromeno[2,3-c]pyrrole-3,9-dione
CAS 862193-11-1C18H12N2O5
7H-Benzo(de)pyrazolo(5,1-a)isoquinoline-10,11-dicarboxylic acid, 7-oxo-, dimethyl ester
CAS 40142-54-9C18H12N2O5
2-(4-Nitrophenyl)-2-oxoethyl quinoline-2-carboxylate
CAS 430471-04-8C18H12N2O5
2,4-Dinitro-1-(2-phenylphenoxy)benzene
CAS 7403-37-4C18H12N2O5
![2-(8-Methoxy-2-oxo-2H-chromen-3-yl)-1H-benzo[d]imidazole-5-carboxylic acid chemical structure, C18H12N2O5, CAS 892287-96-6](/s/DKHPSUSCUGLZGL-UHFFFAOYSA-N.svg)
2-(8-Methoxy-2-oxo-2H-chromen-3-yl)-1H-benzo[d]imidazole-5-carboxylic acid
CAS 892287-96-6C18H12N2O5
![4-{8-Methoxy-3-oxo-2H,3H-chromeno[2,3-c]pyrazol-2-yl}benzoic acid chemical structure, C18H12N2O5, CAS 954107-14-3](/s/WGEFYRXHIQZOKJ-UHFFFAOYSA-N.svg)
4-{8-Methoxy-3-oxo-2H,3H-chromeno[2,3-c]pyrazol-2-yl}benzoic acid
CAS 954107-14-3C18H12N2O5
(5-(Furan-2-yl)isoxazol-3-yl)methyl 5-phenyloxazole-2-carboxylate
CAS 1210313-59-9C18H12N2O5
![2-[2-(1,3-Dioxoisoindol-2-yl)oxyethyl]isoindole-1,3-dione chemical structure, C18H12N2O5, CAS 74651-76-6](/s/RFHJNGVYBUZPOD-UHFFFAOYSA-N.svg)
2-[2-(1,3-Dioxoisoindol-2-yl)oxyethyl]isoindole-1,3-dione
CAS 74651-76-6C18H12N2O5
4-Quinolinecarboxylic acid, 2-(5-nitro-2-furyl-1,3-butadienyl)-
CAS 31432-65-2C18H12N2O5
N-((5-(Furan-2-yl)isoxazol-3-yl)methyl)-4-oxo-4H-chromene-2-carboxamide
CAS 1105205-47-7C18H12N2O5
N-((5-(Furan-2-yl)isoxazol-3-yl)methyl)-2-oxo-2H-chromene-3-carboxamide
CAS 1105241-98-2C18H12N2O5
![7-Hydroxy-3-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-2H-chromen-2-one chemical structure, C18H12N2O5, CAS 931954-13-1](/s/ZIAWFHPDLTVKQG-UHFFFAOYSA-N.svg)
7-Hydroxy-3-[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]-2H-chromen-2-one
CAS 931954-13-1C18H12N2O5
![7-Hydroxy-3-[5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl]-2H-chromen-2-one chemical structure, C18H12N2O5, CAS 186368-62-7](/s/GLVSDCHIVUREOD-UHFFFAOYSA-N.svg)
7-Hydroxy-3-[5-(4-methoxyphenyl)-1,3,4-oxadiazol-2-yl]-2H-chromen-2-one
CAS 186368-62-7C18H12N2O5
3-(5-(2-Hydroxyphenyl)-1,3,4-oxadiazol-2-yl)-7-methoxy-2H-chromen-2-one
CAS 404362-00-1C18H12N2O5
2-Oxo-N-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)-2H-chromene-3-carboxamide
CAS 898522-09-3C18H12N2O5
- (5-(Furan-2-yl)isoxazol-3-yl)methyl 2-(1H-indol-3-yl)-2-oxoacetate1105202-32-1C18H12N2O5
- 5-[2-(4-Carboxyphenyl)hydrazinylidene]-6-oxo-5,6-dihydronaphthalene-2-carboxylic acid69579-72-2C18H12N2O5
- 6-Acetyl-2-(4-nitrophenyl)quinoline-4-carboxylic acid89684-56-0C18H12N2O5
- N-(2-Benzoyl-4-nitrophenyl)furan-2-carboxamide1098069-99-8C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylate2248275-32-1C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-oxo-2,3-dihydro-1H-indol-3-yl)acetate2248310-84-9C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methoxy-1H-indole-3-carboxylate2248372-82-7C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-methyl-2-oxo-2,3-dihydro-1H-indole-6-carboxylate2248393-61-3C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-oxo-1,2,3,4-tetrahydroquinoline-6-carboxylate2248378-71-2C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 4-methoxy-1H-indole-2-carboxylate2248352-74-9C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-oxo-1,2,3,4-tetrahydroisoquinoline-7-carboxylate2248306-72-9C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-oxo-1,2,3,4-tetrahydroquinoline-7-carboxylate2248308-09-8C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-cyanophenoxy)propanoate2248308-64-5C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(1-oxo-2,3-dihydro-1H-isoindol-2-yl)acetate2248309-83-1C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-methoxy-1H-indole-2-carboxylate2248313-25-7C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[3-(cyanomethoxy)phenyl]acetate2248365-27-5C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-oxo-1,2,3,4-tetrahydroisoquinoline-6-carboxylate2248417-07-2C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[4-(cyanomethoxy)phenyl]acetate2248329-30-6C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-(1,3-benzoxazol-2-yl)propanoate2248401-90-1C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(4-cyanophenoxy)propanoate2248270-77-9C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-oxo-1,2,3,4-tetrahydroquinoline-4-carboxylate2248385-54-6C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[(4-cyanophenyl)methoxy]acetate2248307-22-2C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 3-phenyl-4,5-dihydro-1,2-oxazole-5-carboxylate2649058-63-7C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(2-oxo-2,3-dihydro-1H-indol-6-yl)acetate2248392-90-5C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 6-methoxy-1H-indole-2-carboxylate2248308-60-1C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-phenyl-4,5-dihydro-1,2-oxazole-3-carboxylate2649070-08-4C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methoxy-1H-indole-2-carboxylate2248279-36-7C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methoxy-1H-indole-4-carboxylate2248342-94-9C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate2248309-74-0C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-oxo-1,2,3,4-tetrahydroquinoline-3-carboxylate2248293-26-5C18H12N2O5
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(3-oxo-2,3-dihydro-1H-isoindol-1-yl)acetate2248313-19-9C18H12N2O5
- 2-[3-(4-Methoxy-2-nitrophenyl)-2-propyn-1-yl]-1H-isoindole-1,3(2H)-dione1951443-24-5C18H12N2O5
- 2-(4-Nitrophenyl)-5-(4-nitrostyryl)furan89076-50-6C18H12N2O5
Frequently asked questions
What is the molar mass of C18H12N2O5?
The molar mass of C18H12N2O5 is 336.30 g/mol, calculated from standard atomic weights for 18 carbon atoms, 12 hydrogen atoms, 2 nitrogen atoms and 5 oxygen atoms. The monoisotopic mass is 336.0746 Da.
How many compounds have the formula C18H12N2O5?
CompoundList lists 57 compounds with the molecular formula C18H12N2O5, including RefChem:854845, 2-(7-Methoxy-2-oxo-2H-chromen-3-yl)-1H-benzo[d]imidazole-6-carboxylic acid, 1H-Isoindole-1,3(2H)-dione, 5,5'-oxybis[2-methyl-. 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 C18H12N2O5?
C18H12N2O5 has a degree of unsaturation of 14. 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.