Molecular formula

C₂₁H₁₈FN₃O₄S

35 compounds have this formula on CompoundList.

Molar mass: 427.45g/mol
Monoisotopic mass: 427.1002Da
Atoms: 48
Elements: 6
Rings plus double bonds: 14

The formula C21H18FN3O4S describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 1 fluorine atom, 3 nitrogen atoms, 4 oxygen atoms and 1 sulfur 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 × 2159.01%
12.011 × 21 = 252.231 g/mol
H Hydrogen × 184.24%
1.008 × 18 = 18.144 g/mol
F Fluorine × 14.44%
18.998 × 1 = 18.998 g/mol
N Nitrogen × 39.83%
14.007 × 3 = 42.021 g/mol
O Oxygen × 414.97%
15.999 × 4 = 63.996 g/mol
S Sulfur × 17.50%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C21H18FN3O4S

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

Showing 1 to 35 of 35 compounds

1-(2-Cyclopropylethyl)-3-(1,1-dioxo-2H-1,2,4-benzothiadiazin-3-yl)-6-fluoro-4-hydroxy-2(1H)-quinolinone

CAS 477931-14-9C₂₁H₁₈FN₃O₄S

2-((1-(4-Fluorobenzyl)-1H-indol-3-yl)sulfonyl)-N-(5-methylisoxazol-3-yl)acetamide

CAS 850932-71-7C₂₁H₁₈FN₃O₄S

N-[4-[3-(3-Fluorophenyl)-2-(furan-2-carbonyl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide

CAS 851718-05-3C₂₁H₁₈FN₃O₄S

N-[4-[3-(2-Fluorophenyl)-2-(furan-2-carbonyl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide

CAS 851717-96-9C₂₁H₁₈FN₃O₄S

$N-(4-Fluorophenyl)-2-{[5-(2-methoxyethyl)-6-oxo-8-oxa-3,5-diazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),3,10,12-pentaen-4-yl]sulfanyl}acetamide chemical structure, C21H18FN3O4S, CAS 866894-64-6$

N-(4-Fluorophenyl)-2-{[5-(2-methoxyethyl)-6-oxo-8-oxa-3,5-diazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),3,10,12-pentaen-4-yl]sulfanyl}acetamide

CAS 866894-64-6C₂₁H₁₈FN₃O₄S

N-(4-(5-(4-Fluorophenyl)-1-(furan-2-carbonyl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide

CAS 851717-59-4C₂₁H₁₈FN₃O₄S

N-{3-[5-(2-Fluorophenyl)-1-(furan-2-carbonyl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide

CAS 714263-35-1C₂₁H₁₈FN₃O₄S

Methyl 4-[({2-[2-(3-fluorophenyl)-1,3-thiazol-4-yl]ethyl}carbamoyl)formamido]benzoate

CAS 895785-16-7C₂₁H₁₈FN₃O₄S

N-(3,5-Dimethoxyphenyl)-2-(9-fluoro-2-methyl-4-oxo[1]benzothieno[3,2-d]pyrimidin-3(4H)-yl)acetamide

CAS 1040682-03-8C₂₁H₁₈FN₃O₄S

N-(2,5-Dimethoxyphenyl)-2-(9-fluoro-2-methyl-4-oxo[1]benzothieno[3,2-d]pyrimidin-3(4H)-yl)acetamide

CAS 1040682-64-1C₂₁H₁₈FN₃O₄S

N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-(2-((4-fluorobenzyl)thio)-6-oxo-1,6-dihydropyrimidin-4-yl)acetamide

CAS 1040644-84-5C₂₁H₁₈FN₃O₄S

2-(3-((2-Fluorobenzyl)sulfonyl)-1H-indol-1-yl)-N-(5-methylisoxazol-3-yl)acetamide

CAS 894027-88-4C₂₁H₁₈FN₃O₄S

N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-(2-((4-fluorobenzyl)thio)-6-oxo-1,6-dihydropyrimidin-4-yl)acetamide

CAS 1040645-16-6C₂₁H₁₈FN₃O₄S

N-{3-[5-(4-Fluorophenyl)-1-(furan-2-carbonyl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide

CAS 851718-63-3C₂₁H₁₈FN₃O₄S

N-{2-[1-(2-Fluorobenzoyl)-5-(furan-2-yl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide

CAS 923217-09-8C₂₁H₁₈FN₃O₄S

N-(2-(5-(2-Fluorophenyl)-1-(furan-2-carbonyl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide

CAS 923217-19-0C₂₁H₁₈FN₃O₄S

N-{3-[5-(3-Fluorophenyl)-1-(furan-2-carbonyl)-4,5-dihydro-1H-pyrazol-3-yl]phenyl}methanesulfonamide

CAS 835887-23-5C₂₁H₁₈FN₃O₄S

N-[3-[2-(4-Fluorobenzoyl)-3-(furan-2-yl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide

CAS 710986-25-7C₂₁H₁₈FN₃O₄S

Ethyl 4-{3-[(4-fluorobenzoyl)amino]phenoxy}-2-(methylsulfanyl)-5-pyrimidinecarboxylate

CAS 478065-28-0C₂₁H₁₈FN₃O₄S

(Z)-2-(1,3-Dioxoisoindolin-2-yl)-N-(3-(2-ethoxyethyl)-6-fluorobenzo[d]thiazol-2(3H)-ylidene)acetamide

CAS 865163-03-7C₂₁H₁₈FN₃O₄S

Methyl 2-({[1-(4-fluorophenyl)-4-oxo-1,4-dihydropyridazin-3-yl]carbonyl}amino)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate

CAS 898619-51-7C₂₁H₁₈FN₃O₄S

2-(2-(4-Fluorophenoxy)ethyl)-4-(p-tolyl)-2H-pyrido[2,3-e][1,2,4]thiadiazin-3(4H)-one 1,1-dioxide

CAS 1251606-40-2C₂₁H₁₈FN₃O₄S

N-(3-(1-(3-Fluorobenzoyl)-5-(furan-2-yl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide

CAS 851718-82-6C₂₁H₁₈FN₃O₄S

N-(4-(3-((Benzo[d][1,3]dioxol-5-ylmethyl)amino)-3-oxopropyl)thiazol-2-yl)-4-fluorobenzamide

CAS 1021265-85-9C₂₁H₁₈FN₃O₄S

Frequently asked questions

Still have a question?

The help centre explains buying, quotes and supplier badges step by step, or you can write to our team.

Help centre Contact us

What is the molar mass of C21H18FN3O4S?

The molar mass of C21H18FN3O4S is 427.45 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 1 fluorine atom, 3 nitrogen atoms, 4 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 427.1002 Da.

How many compounds have the formula C21H18FN3O4S?

CompoundList lists 35 compounds with the molecular formula C21H18FN3O4S, including 1-(2-Cyclopropylethyl)-3-(1,1-dioxo-2H-1,2,4-benzothiadiazin-3-yl)-6-fluoro-4-hydroxy-2(1H)-quinolinone, 2-((1-(4-Fluorobenzyl)-1H-indol-3-yl)sulfonyl)-N-(5-methylisoxazol-3-yl)acetamide, N-[4-[3-(3-Fluorophenyl)-2-(furan-2-carbonyl)-3,4-dihydropyrazol-5-yl]phenyl]methanesulfonamide. 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 C21H18FN3O4S?

C21H18FN3O4S 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.