C18H19N3O4
349 compounds have this formula on CompoundList.
- Molar mass
- 341.37g/mol
- Monoisotopic mass
- 341.1376Da
- Atoms
- 44
- Elements
- 4
- Rings plus double bonds
- 11
The formula C18H19N3O4 describes a molecule made of 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 4 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 × 1863.33%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 195.61%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 312.31%14.007 × 3 = 42.021 g/mol
- O Oxygen × 418.75%15.999 × 4 = 63.996 g/mol
Compounds with the formula C18H19N3O4
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 301 to 349 of 349 compounds
![3-{[5-(3,5-Dimethyl-1,2-oxazol-4-yl)furan-2-yl]methyl}-1-(2-methoxyphenyl)urea chemical structure, C18H19N3O4, CAS 2415471-35-9](/s/AZSUNKFBCLKNBD-UHFFFAOYSA-N.svg)
![1H-Pyrrole-2-carboxylic acid, 4-cyano-1-ethyl-3-[[(phenylmethoxy)carbonyl]amino]-, ethyl ester chemical structure, C18H19N3O4, CAS 2680809-59-8](/s/FQNTXBWZTYDWMX-UHFFFAOYSA-N.svg)
![(3R)-1-[2-[(3S)-2,6-Dioxopiperidin-3-yl]-1-oxo-3H-isoindol-5-yl]pyrrolidine-3-carbaldehyde chemical structure, C18H19N3O4, CAS 2952806-82-3](/s/VYWHIVKOWFREBT-ABAIWWIYSA-N.svg)
![N-Benzyl-2-[2-(3-ethoxy-4-hydroxybenzylidene)hydrazino]-2-oxoacetamide chemical structure, C18H19N3O4, CAS 352011-90-6](/s/XBQGGUCDBSJAID-UDWIEESQSA-N.svg)
![6-{4-[(Benzyloxy)carbonyl]piperazin-1-yl}pyridine-3-carboxylic acid chemical structure, C18H19N3O4, CAS 2639419-54-6](/s/RTYUIJZELJNBRY-UHFFFAOYSA-N.svg)
![8-[(3-Methyl-1,2-oxazol-5-yl)methyl]-3-phenyl-1-oxa-3,8-diazaspiro[4.5]decane-2,4-dione chemical structure, C18H19N3O4, CAS 2770640-34-9](/s/QQVYPWHUYFRWTB-UHFFFAOYSA-N.svg)
![1-[(Benzyloxy)carbonyl]-6-cyclopropyl-1H,2H,3H,4H-imidazo[1,5-a]pyrimidine-8-carboxylic acid chemical structure, C18H19N3O4, CAS 2138135-89-2](/s/TYJRHJMBTFLYDY-UHFFFAOYSA-N.svg)
![1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[3,5-dimethyl-1-(propan-2-yl)-1H-pyrazol-4-yl]acetate chemical structure, C18H19N3O4, CAS 2248270-42-8](/s/ADGSBAXRTQQZIF-UHFFFAOYSA-N.svg)
![2-{[(Benzyloxy)carbonyl]amino}-6-methyl-5,6,7,8-tetrahydro-1,6-naphthyridine-3-carboxylic acid chemical structure, C18H19N3O4, CAS 2580185-71-1](/s/AFUSCSRRXKJPCF-UHFFFAOYSA-N.svg)
- 2-{4-[(Benzyloxy)carbonyl]piperazin-1-yl}pyridine-4-carboxylic acid2580209-05-6C18H19N3O4
- 1-Benzyl-3-{[(tert-butoxy)carbonyl]amino}-4-cyano-1H-pyrrole-2-carboxylic acid2580221-92-5C18H19N3O4
- 4-{[(Benzyloxy)carbonyl]amino}-2-cyclopentylpyrimidine-5-carboxylic acid2580241-55-8C18H19N3O4
- 4-[(1E)-2-(4-{[(tert-Butoxy)carbonyl]amino}phenyl)diazen-1-yl]benzoic acid2127388-17-2C18H19N3O4
- 4-{4-[(Benzyloxy)carbonyl]piperazin-1-yl}pyridine-2-carboxylic acid2639434-31-2C18H19N3O4
- 3-{[(Benzyloxy)carbonyl](2,2-dimethylcyclopropyl)amino}pyridazine-4-carboxylic acid2680787-08-8C18H19N3O4
- Benzyl N-[1-(2-hydroxyethyl)-3-(2-methylfuran-3-yl)-1H-pyrazol-5-yl]carbamate2680816-62-8C18H19N3O4
- 3-{[(Benzyloxy)carbonyl](cyclopentyl)amino}pyridazine-4-carboxylic acid2680879-46-1C18H19N3O4
- Benzyl 4-(3-nitrophenyl)piperazine-1-carboxylate1871354-41-4C18H19N3O4
- Benzyl N-cyclopentyl-N-(5-nitropyridin-2-yl)carbamate2680748-42-7C18H19N3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-butyl-5-ethyl-1H-pyrazole-4-carboxylate2248311-96-6C18H19N3O4
- 1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl 1-tert-butyl-5-ethyl-1H-pyrazole-4-carboxylate2248355-55-5C18H19N3O4
- 3-[5-[3-(2-Aminoethoxy)prop-1-ynyl]-1-oxo-isoindolin-2-yl]piperidine-2,6-dione2940938-16-7C18H19N3O4
- (S)-N-(1-((2-Amino-2-oxoethyl)amino)-1-oxo-3-phenylpropan-2-yl)-3-(furan-2-yl)acrylamide90846-39-2C18H19N3O4
- 5-(1-(3,5-Dimethoxybenzyl)azetidin-3-yl)-3-(furan-2-yl)-1,2,4-oxadiazole1428350-98-4C18H19N3O4
- FA-Gly-Phe-NH2C18H19N3O4
- Methyl 3-(3-cyanophenyl)-4,6-dioxo-5-propyloctahydropyrrolo[3,4-c]pyrrole-1-carboxylate1236207-62-7C18H19N3O4
- (2R)-2-[[2-[[(E)-3-(Furan-2-yl)prop-2-enoyl]amino]acetyl]amino]-3-phenylpropanamideC18H19N3O4
- 3-[4-[3-(2-Aminoethoxy)prop-1-ynyl]-1-oxo-isoindolin-2-yl]piperidine-2,6-dione2940938-49-6C18H19N3O4
- 3-(2-(6-Oxo-3-phenylpyridazin-1(6H)-yl)acetamido)cyclopentane-1-carboxylic acid1573671-41-6C18H19N3O4
- N-But-3-enyl-2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindoline-4-carboxamide2390549-07-0C18H19N3O4
- N-But-3-enyl-2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindoline-5-carboxamide2390570-31-5C18H19N3O4
- N-[2-(2,6-Dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]pent-4-enamide2654803-46-8C18H19N3O4
- 2-(2,6-Dioxo-3-piperidyl)-N-(2-methylallyl)-1-oxo-isoindoline-5-carboxamide2390669-77-7C18H19N3O4
- (R)-7,8-Dimethoxy-4-methyl-1-(4-nitrophenyl)-4,5-dihydro-3H-benzo[d][1,2]diazepine1071136-76-9C18H19N3O4
Frequently asked questions
What is the molar mass of C18H19N3O4?
The molar mass of C18H19N3O4 is 341.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 4 oxygen atoms. The monoisotopic mass is 341.1376 Da.
How many compounds have the formula C18H19N3O4?
CompoundList lists 349 compounds with the molecular formula C18H19N3O4, including 3-{[5-(3,5-Dimethyl-1,2-oxazol-4-yl)furan-2-yl]methyl}-1-(2-methoxyphenyl)urea, 1-(1,3-Dioxaindan-5-yl)-N-(1-cyanocyclopentyl)-5-oxopyrrolidine-3-carboxamide, 3-(1-Oxo-6-(4-oxopiperidin-1-yl)isoindolin-2-yl)piperidine-2,6-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 C18H19N3O4?
C18H19N3O4 has a degree of unsaturation of 11. 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.