Molecular formula

C₁₈H₁₉N₃O₂

419 compounds have this formula on CompoundList.

Molar mass: 309.37g/mol
Monoisotopic mass: 309.1477Da
Atoms: 42
Elements: 4
Rings plus double bonds: 11

The formula C18H19N3O2 describes a molecule made of 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 2 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 × 1869.88%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 196.19%
1.008 × 19 = 19.152 g/mol
N Nitrogen × 313.58%
14.007 × 3 = 42.021 g/mol
O Oxygen × 210.34%
15.999 × 2 = 31.998 g/mol

Look up another formula

Compounds with the formula C18H19N3O2

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 401 to 419 of 419 compounds

(9H-Fluoren-9-yl)methyl N-(2-carbamimidoylethyl)carbamate

CAS 2694731-57-0C₁₈H₁₉N₃O₂

Benzyl 6-amino-3',6'-dihydro-[3,4'-bipyridine]-1'(2'H)-carboxylate

CAS 2397550-81-9C₁₈H₁₉N₃O₂

6-(1-Cyclopentyl-1H-pyrazol-4-yl)-1-methyl-1H-indole-4-carboxylic acid

CAS 3078563-30-8C₁₈H₁₉N₃O₂

5-(Cyclobutylmethyl)-2-(3-methoxyphenyl)-4H,5H-pyrazolo[1,5-a]pyrazin-4-one

CAS 3054588-80-3C₁₈H₁₉N₃O₂

3-(4-Methylpiperazine-1-carbonyl)-2-(prop-2-yn-1-yl)-1,2-dihydroisoquinolin-1-one

CAS 3054554-10-5C₁₈H₁₉N₃O₂

Acetamide,N-(2,3-dihydro-1-oxo-1H-isoindol-4-yl)-2-[methyl(phenylmethyl)amino]-

CAS 366453-08-9C₁₈H₁₉N₃O₂

Ethyl N-(3-benzyl-4H-quinazolin-2-yl)carbamate

CAS 793618-62-9C₁₈H₁₉N₃O₂

1H-Pyrazolo[4,3-c]pyridine-6-carboxylic acid,4-(1-methylethyl)-1-phenyl-,ethyl ester

CAS 137368-82-2C₁₈H₁₉N₃O₂

3-Amino-8-methoxy-2-(3-phenylpropyl)quinazolin-4-one

CAS 108014-07-9C₁₈H₁₉N₃O₂

1H-Pyrrolo[2,3-b]pyridine-3-carboxamide,1-(1,1-dimethylethyl)-2-hydroxy-n-phenyl-

CAS 136257-26-6C₁₈H₁₉N₃O₂

5-(3,4-Diethoxyphenyl)-3-phenyl-1H-1,2,4-triazole

CAS 1416342-22-7C₁₈H₁₉N₃O₂

(4-Aminopiperazin-1-yl)(9H-xanthen-9-yl)methanone

CAS 17042-10-3C₁₈H₁₉N₃O₂

1-Phenyl-3-(1,3,3-trimethyl-2-oxoindolin-5-yl)urea

CAS 1795556-39-6C₁₈H₁₉N₃O₂

1-(1H-1,2,3-Benzotriazol-1-yl)-3,3-dimethyl-1-phenoxybutan-2-one

CAS 2157442-80-1C₁₈H₁₉N₃O₂

(3aR,8aS)-3a-Methyl-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indol-5-yl phenylcarbamate

CAS 207729-71-3C₁₈H₁₉N₃O₂

N-(4-(3-(3-Ethylphenyl)ureido)phenyl)acrylamide

CAS 3037703-64-0C₁₈H₁₉N₃O₂

4-Methoxy-3-((4-morpholinophenyl)amino)benzonitrile

CAS 3074103-44-6C₁₈H₁₉N₃O₂

Ethyl 1-benzyl-3,6-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate

CAS 2932441-17-1C₁₈H₁₉N₃O₂

(S)-N-(2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)pyridin-3-yl)benzamide

CAS 2865165-82-6C₁₈H₁₉N₃O₂

Frequently asked questions

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What is the molar mass of C18H19N3O2?

The molar mass of C18H19N3O2 is 309.37 g/mol, calculated from standard atomic weights for 18 carbon atoms, 19 hydrogen atoms, 3 nitrogen atoms and 2 oxygen atoms. The monoisotopic mass is 309.1477 Da.

How many compounds have the formula C18H19N3O2?

CompoundList lists 419 compounds with the molecular formula C18H19N3O2, including (9H-Fluoren-9-yl)methyl N-(2-carbamimidoylethyl)carbamate, Benzyl 6-amino-3',6'-dihydro-[3,4'-bipyridine]-1'(2'H)-carboxylate, 6-(1-Cyclopentyl-1H-pyrazol-4-yl)-1-methyl-1H-indole-4-carboxylic acid. 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 C18H19N3O2?

C18H19N3O2 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.