Molecular formula

C₂₁H₂₁FN₂O

19 compounds have this formula on CompoundList.

Molar mass: 336.41g/mol
Monoisotopic mass: 336.1638Da
Atoms: 46
Elements: 5
Rings plus double bonds: 12

The formula C21H21FN2O describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 fluorine atom, 2 nitrogen atoms and 1 oxygen atom. 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 × 2174.98%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 216.29%
1.008 × 21 = 21.168 g/mol
F Fluorine × 15.65%
18.998 × 1 = 18.998 g/mol
N Nitrogen × 28.33%
14.007 × 2 = 28.014 g/mol
O Oxygen × 14.76%
15.999 × 1 = 15.999 g/mol

Look up another formula

Compounds with the formula C21H21FN2O

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

Showing 1 to 19 of 19 compounds

11-(4-Fluorophenyl)-3,3-dimethyl-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one

CAS 330958-01-5C₂₁H₂₁FN₂O

YM-53601 free base

CAS 182959-28-0C₂₁H₂₁FN₂O

11-(2-Fluorophenyl)-3,3-dimethyl-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one

CAS 336177-42-5C₂₁H₂₁FN₂O

6-(3-Fluorophenyl)-9,9-dimethyl-6,8,10,11-tetrahydro-5H-benzo[b][1,4]benzodiazepin-7-one

CAS 329213-59-4C₂₁H₂₁FN₂O

1-{[4-(2-Fluorophenyl)piperazin-1-yl]methyl}naphthalen-2-ol

CAS 315684-29-8C₂₁H₂₁FN₂O

(4-Benzylpiperidin-1-yl)(5-fluoro-1H-indol-2-yl)methanone

CAS 420136-82-9C₂₁H₂₁FN₂O

7-[(4-Fluorophenyl)(piperidin-1-yl)methyl]quinolin-8-ol

CAS 385786-52-7C₂₁H₂₁FN₂O

N-(4-(3,4-Dihydroisoquinolin-2(1H)-yl)but-2-yn-1-yl)-2-(4-fluorophenyl)acetamide

CAS 1351596-18-3C₂₁H₂₁FN₂O

1-(8-Fluoro-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indol-2-yl)-4-phenylbutan-1-one

CAS 1351694-89-7C₂₁H₂₁FN₂O

N-(1-Cyanocyclobutyl)-3-fluoro-N,3',4'-trimethyl-[1,1'-biphenyl]-4-carboxamide

CAS 1808722-00-0C₂₁H₂₁FN₂O

8-[(4-Fluorophenyl)methoxy]-2-(piperidin-1-yl)quinoline

CAS 921556-16-3C₂₁H₂₁FN₂O

N-(2-(Dimethylamino)-2-(4-fluorophenyl)ethyl)-2-naphthamide

CAS 941964-61-0C₂₁H₂₁FN₂O

2-[2,3-Dihydro-1H-inden-1-yl(prop-2-ynyl)amino]-N-[(2-fluorophenyl)methyl]acetamide

CAS 1333656-12-4C₂₁H₂₁FN₂O

(5-Fluoro-1-methyl-1H-indol-2-yl)(4-phenylpiperidin-1-yl)methanone

CAS 1374536-30-7C₂₁H₂₁FN₂O

(3-(4-Fluorophenyl)azepan-1-yl)(1H-indol-5-yl)methanone

CAS 1797077-27-0C₂₁H₂₁FN₂O

N-(2-(Dimethylamino)-2-(4-fluorophenyl)ethyl)-1-naphthamide

CAS 941940-65-4C₂₁H₂₁FN₂O

1-[2-(4-Fluorophenyl)-1H-indol-3-yl]-2-(1-piperidinyl)ethanone

CAS 70093-21-9C₂₁H₂₁FN₂O

2-(4-Fluorophenyl)-N-(6-methyl-2,3,4,9-tetrahydro-1H-carbazol-2-yl)acetamide

CAS 1789017-78-2C₂₁H₂₁FN₂O

N1-(4-Fluorobenzyl)-N3-(4-methoxybenzyl)-phenylene-1,3-diamine

CAS 1820881-83-1C₂₁H₂₁FN₂O

Frequently asked questions

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What is the molar mass of C21H21FN2O?

The molar mass of C21H21FN2O is 336.41 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 fluorine atom, 2 nitrogen atoms and 1 oxygen atom. The monoisotopic mass is 336.1638 Da.

How many compounds have the formula C21H21FN2O?

CompoundList lists 19 compounds with the molecular formula C21H21FN2O, including 11-(4-Fluorophenyl)-3,3-dimethyl-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one, YM-53601 free base, 11-(2-Fluorophenyl)-3,3-dimethyl-2,3,4,5,10,11-hexahydro-1H-dibenzo[b,e][1,4]diazepin-1-one. 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 C21H21FN2O?

C21H21FN2O has a degree of unsaturation of 12. 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.