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Molecular formula

C21H18N2O3

221 compounds have this formula on CompoundList.

Molar mass
346.39g/mol
Monoisotopic mass
346.1317Da
Atoms
44
Elements
4
Rings plus double bonds
14

The formula C21H18N2O3 describes a molecule made of 21 carbon atoms, 18 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 × 2172.82%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 185.24%
    1.008 × 18 = 18.144 g/mol
  • N Nitrogen × 28.09%
    14.007 × 2 = 28.014 g/mol
  • O Oxygen × 313.86%
    15.999 × 3 = 47.997 g/mol
Look up another formula

Compounds with the formula C21H18N2O3

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

Showing 201 to 221 of 221 compounds

(9H-Fluoren-9-yl)methyl N-[4-(hydroxymethyl)pyridin-3-yl]carbamate chemical structure, C21H18N2O3, CAS 2763939-82-6
(9H-Fluoren-9-yl)methyl N-[4-(hydroxymethyl)pyridin-3-yl]carbamate
CAS 2763939-82-6C21H18N2O3
(9H-Fluoren-9-yl)methyl N-(6-hydroxy-4-methylpyridin-3-yl)carbamate chemical structure, C21H18N2O3, CAS 2764001-10-5
(9H-Fluoren-9-yl)methyl N-(6-hydroxy-4-methylpyridin-3-yl)carbamate
CAS 2764001-10-5C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[3-(hydroxymethyl)pyridin-2-yl]carbamate chemical structure, C21H18N2O3, CAS 2764002-76-6
(9H-Fluoren-9-yl)methyl N-[3-(hydroxymethyl)pyridin-2-yl]carbamate
CAS 2764002-76-6C21H18N2O3
(9H-Fluoren-9-yl)methyl N-(3-hydroxy-6-methylpyridin-2-yl)carbamate chemical structure, C21H18N2O3, CAS 2763984-95-6
(9H-Fluoren-9-yl)methyl N-(3-hydroxy-6-methylpyridin-2-yl)carbamate
CAS 2763984-95-6C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[4-(hydroxymethyl)pyridin-2-yl]carbamate chemical structure, C21H18N2O3, CAS 2763955-42-4
(9H-Fluoren-9-yl)methyl N-[4-(hydroxymethyl)pyridin-2-yl]carbamate
CAS 2763955-42-4C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[5-(hydroxymethyl)pyridin-2-yl]carbamate chemical structure, C21H18N2O3, CAS 2763998-77-0
(9H-Fluoren-9-yl)methyl N-[5-(hydroxymethyl)pyridin-2-yl]carbamate
CAS 2763998-77-0C21H18N2O3
(9H-Fluoren-9-yl)methyl N-(2-hydroxy-5-methylpyridin-3-yl)carbamate chemical structure, C21H18N2O3, CAS 2763956-35-8
(9H-Fluoren-9-yl)methyl N-(2-hydroxy-5-methylpyridin-3-yl)carbamate
CAS 2763956-35-8C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[(2-hydroxypyridin-4-yl)methyl]carbamate chemical structure, C21H18N2O3, CAS 2763920-20-1
(9H-Fluoren-9-yl)methyl N-[(2-hydroxypyridin-4-yl)methyl]carbamate
CAS 2763920-20-1C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[2-(hydroxymethyl)pyridin-4-yl]carbamate chemical structure, C21H18N2O3, CAS 2764007-55-6
(9H-Fluoren-9-yl)methyl N-[2-(hydroxymethyl)pyridin-4-yl]carbamate
CAS 2764007-55-6C21H18N2O3
(9H-Fluoren-9-yl)methyl N-(2-hydroxy-6-methylpyridin-3-yl)carbamate chemical structure, C21H18N2O3, CAS 2763966-67-0
(9H-Fluoren-9-yl)methyl N-(2-hydroxy-6-methylpyridin-3-yl)carbamate
CAS 2763966-67-0C21H18N2O3
(9H-Fluoren-9-yl)methyl N-(2-hydroxy-4-methylpyridin-3-yl)carbamate chemical structure, C21H18N2O3, CAS 2764010-63-9
(9H-Fluoren-9-yl)methyl N-(2-hydroxy-4-methylpyridin-3-yl)carbamate
CAS 2764010-63-9C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[(4-hydroxypyridin-3-yl)methyl]carbamate chemical structure, C21H18N2O3, CAS 2764011-54-1
(9H-Fluoren-9-yl)methyl N-[(4-hydroxypyridin-3-yl)methyl]carbamate
CAS 2764011-54-1C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[6-(hydroxymethyl)pyridin-2-yl]carbamate chemical structure, C21H18N2O3, CAS 2763908-80-9
(9H-Fluoren-9-yl)methyl N-[6-(hydroxymethyl)pyridin-2-yl]carbamate
CAS 2763908-80-9C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[(6-hydroxypyridin-3-yl)methyl]carbamate chemical structure, C21H18N2O3, CAS 2763930-46-5
(9H-Fluoren-9-yl)methyl N-[(6-hydroxypyridin-3-yl)methyl]carbamate
CAS 2763930-46-5C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[5-(hydroxymethyl)pyridin-3-yl]carbamate chemical structure, C21H18N2O3, CAS 2764004-43-3
(9H-Fluoren-9-yl)methyl N-[5-(hydroxymethyl)pyridin-3-yl]carbamate
CAS 2764004-43-3C21H18N2O3
(9H-Fluoren-9-yl)methyl N-(3-hydroxy-4-methylpyridin-2-yl)carbamate chemical structure, C21H18N2O3, CAS 2763927-47-3
(9H-Fluoren-9-yl)methyl N-(3-hydroxy-4-methylpyridin-2-yl)carbamate
CAS 2763927-47-3C21H18N2O3
(9H-Fluoren-9-yl)methyl N-(4-hydroxy-3-methylpyridin-2-yl)carbamate chemical structure, C21H18N2O3, CAS 2763922-65-0
(9H-Fluoren-9-yl)methyl N-(4-hydroxy-3-methylpyridin-2-yl)carbamate
CAS 2763922-65-0C21H18N2O3
(9H-Fluoren-9-yl)methyl N-[(3-hydroxypyridin-2-yl)methyl]carbamate chemical structure, C21H18N2O3, CAS 2763915-15-5
(9H-Fluoren-9-yl)methyl N-[(3-hydroxypyridin-2-yl)methyl]carbamate
CAS 2763915-15-5C21H18N2O3
Benzyl 2-(4-(3-oxo-2,3-dihydro-1H-inden-5-yl)-1H-pyrazol-1-yl)acetate chemical structure, C21H18N2O3, CAS 3078444-68-2
Benzyl 2-(4-(3-oxo-2,3-dihydro-1H-inden-5-yl)-1H-pyrazol-1-yl)acetate
CAS 3078444-68-2C21H18N2O3
(2Z,4Z)-2-Cyano-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-methyl-5-phenylpenta-2,4-dienamide chemical structure, C21H18N2O3, CAS 1259230-61-9
(2Z,4Z)-2-Cyano-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-methyl-5-phenylpenta-2,4-dienamide
CAS 1259230-61-9C21H18N2O3
2-(Methoxymethyl)-5-(3-oxo-3-phenylprop-1-enyl)-6-phenylpyridazin-3-one chemical structure, C21H18N2O3, CAS 562869-98-1
2-(Methoxymethyl)-5-(3-oxo-3-phenylprop-1-enyl)-6-phenylpyridazin-3-one
CAS 562869-98-1C21H18N2O3

Frequently asked questions

What is the molar mass of C21H18N2O3?

The molar mass of C21H18N2O3 is 346.39 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms and 3 oxygen atoms. The monoisotopic mass is 346.1317 Da.

How many compounds have the formula C21H18N2O3?

CompoundList lists 221 compounds with the molecular formula C21H18N2O3, including (9H-Fluoren-9-yl)methyl N-[4-(hydroxymethyl)pyridin-3-yl]carbamate, (9H-Fluoren-9-yl)methyl N-(6-hydroxy-4-methylpyridin-3-yl)carbamate, (9H-Fluoren-9-yl)methyl N-[3-(hydroxymethyl)pyridin-2-yl]carbamate. 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 C21H18N2O3?

C21H18N2O3 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.