C18H11NO3
47 compounds have this formula on CompoundList.
- Molar mass
- 289.29g/mol
- Monoisotopic mass
- 289.0739Da
- Atoms
- 33
- Elements
- 4
- Rings plus double bonds
- 14
The formula C18H11NO3 describes a molecule made of 18 carbon atoms, 11 hydrogen atoms, 1 nitrogen atom 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 × 1874.73%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 113.83%1.008 × 11 = 11.088 g/mol
- N Nitrogen × 14.84%14.007 × 1 = 14.007 g/mol
- O Oxygen × 316.59%15.999 × 3 = 47.997 g/mol
Compounds with the formula C18H11NO3
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 47 of 47 compounds
![2-(4-Hydroxy-phenyl)-benzo[de]isoquinoline-1,3-dione chemical structure, C18H11NO3, CAS 6914-99-4](/s/MBOMACZFYPHXRJ-UHFFFAOYSA-N.svg)
![2-(3-Hydroxyphenyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione chemical structure, C18H11NO3, CAS 7056-69-1](/s/OXNZBKPRJYLMPO-UHFFFAOYSA-N.svg)
![1-Acetyl-3H-naphtho[1,2,3-de]quinoline-2,7-dione chemical structure, C18H11NO3, CAS 2582-22-1](/s/ZZMAHQZJJAGKMN-ZROIWOOFSA-N.svg)
![12-Acetylnaphtho[2,3-b]indolizine-6,11-dione chemical structure, C18H11NO3, CAS 98596-11-3](/s/OLBAGJDDSBANJY-UHFFFAOYSA-N.svg)
![2-(p-Tolyl)naphtho[2,3-d]oxazole-4,9-dione chemical structure, C18H11NO3, CAS 98596-15-7](/s/GUVLPJPRKCMYJJ-UHFFFAOYSA-N.svg)
![2-(2-Hydroxyphenyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione chemical structure, C18H11NO3, CAS 6917-30-2](/s/PAIBIYUMROKYMN-UHFFFAOYSA-N.svg)
![6-Hydroxy-2-(2-quinolylmethylene)benzo[b]furan-3-one chemical structure, C18H11NO3, CAS 1351357-89-5](/s/QKLICKFAHNDKHG-MFOYZWKCSA-N.svg)
![2-(2-Nitrophenyl)dibenzo[b,d]furan chemical structure, C18H11NO3, CAS 1246308-82-6](/s/HNGVCNKOEXITNG-UHFFFAOYSA-N.svg)
![2-(4-Hydroxyphenyl)benzo[f]isoindole-1,3-dione chemical structure, C18H11NO3, CAS 5664-73-3](/s/NPLDYKRBYRQGCS-UHFFFAOYSA-N.svg)
- 2-(5-Hydroxynaphthalen-2-yl)isoindoline-1,3-dione214628-92-9C18H11NO3
- 2-(1-Naphthyloxy)isoindoline-1,3-dione882757-66-6C18H11NO3
- 12-Nitro-6-chrysenol120014-79-1C18H11NO3
- 1-(3-Nitro-1-pyrenyl)-ethanone161334-04-9C18H11NO3
- 1H-Furo[3,4-c]pyrrole-1,4(5H)-dione, 3,6-diphenyl-502183-99-5C18H11NO3
- 1-(6-Nitro-1-pyrenyl)-ethanone30436-88-5C18H11NO3
- 1-(8-Nitro-1-pyrenyl)-ethanone32832-28-3C18H11NO3
- 2H-Pyran-5-carbonitrile, 3-hydroxy-2-oxo-4,6-diphenyl-61223-09-4C18H11NO3
- 3-Phenyl-2H-naphtho[2,1-e][1,3]oxazine-2,4(3H)-dione62353-82-6C18H11NO3
- 7-Hydroxy-3-(quinolin-7-yl)-4H-chromen-4-one97850-39-0C18H11NO3
- 1-Oxo-1,2-dihydronaphtho[2,3-h]isoquinoline-6-carboxylic acid919291-02-4C18H11NO3
- 2-(Naphthalen-2-yloxy)isoindoline-1,3-dione1065011-29-1C18H11NO3
- (16E)-16-(1-Hydroxyethylidene)-14-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(17),2,4,6,9,11,13-heptaene-8,15-dioneC18H11NO3
- 6-Acetyl-5H-benzo[a]phenoxazin-5-one80809-57-0C18H11NO3
- (E)-4-(Benzofuran-2-ylmethylene)-2-phenyloxazol-5(4H)-one823228-46-2C18H11NO3
- 1-Nitrochrysen-2-ol116212-01-2C18H11NO3
- 2-Naphthalen-2-yl-1,3-benzoxazole-5-carboxylic acid945531-88-4C18H11NO3
- 2-(3-Oxo-3,4-dihydroquinolin-2-yl)-1H-indene-1,3(2H)-dione92943-08-3C18H11NO3
- 6-Hydroxy-2-(pyridin-4-yl)-4H-naphtho[1,2-b]pyran-4-one652138-20-0C18H11NO3
- 4-(2-Cyanophenoxy)naphthalene-1-carboxylic acid1542224-30-5C18H11NO3
- 2-(7-Hydroxyquinolin-2(1H)-ylidene)-1H-indene-1,3(2H)-dione864871-00-1C18H11NO3
- 3,6-Diphenyl-2H-furo[3,2-b]pyrrole-2,5(4H)-dione38558-87-1C18H11NO3
- 16-(1-Hydroxyethylidene)-14-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(17),2,4,6,9,11,13-heptaene-8,15-dioneC18H11NO3
Frequently asked questions
What is the molar mass of C18H11NO3?
The molar mass of C18H11NO3 is 289.29 g/mol, calculated from standard atomic weights for 18 carbon atoms, 11 hydrogen atoms, 1 nitrogen atom and 3 oxygen atoms. The monoisotopic mass is 289.0739 Da.
How many compounds have the formula C18H11NO3?
CompoundList lists 47 compounds with the molecular formula C18H11NO3, including C.I. Solvent Yellow 114, 2-(4-Hydroxy-phenyl)-benzo[de]isoquinoline-1,3-dione, 3-(1H-Indol-3-ylmethylene)-chroman-2,4-dione. 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 C18H11NO3?
C18H11NO3 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.