Molecular formula

C₁₈H₂₁N₃OS

134 compounds have this formula on CompoundList.

Molar mass: 327.45g/mol
Monoisotopic mass: 327.1405Da
Atoms: 44
Elements: 5
Rings plus double bonds: 10

The formula C18H21N3OS describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 1 oxygen atom 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 × 1866.03%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 216.46%
1.008 × 21 = 21.168 g/mol
N Nitrogen × 312.83%
14.007 × 3 = 42.021 g/mol
O Oxygen × 14.89%
15.999 × 1 = 15.999 g/mol
S Sulfur × 19.79%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C18H21N3OS

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

Showing 101 to 134 of 134 compounds

2-(Benzylthio)-1-(2-cyclopropyl-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)ethanone

CAS 2034294-00-1C₁₈H₂₁N₃OS

N-(1-(Benzo[b]thiophen-3-yl)propan-2-yl)-1,3,5-trimethyl-1H-pyrazole-4-carboxamide

CAS 2034298-29-6C₁₈H₂₁N₃OS

N-({[2,4'-Bipyridine]-4-yl}methyl)-2-(cyclopentylsulfanyl)acetamide

CAS 2034305-58-1C₁₈H₂₁N₃OS

1-(2-Cyclopropyl-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)-3-(phenylthio)propan-1-one

CAS 2034293-56-4C₁₈H₂₁N₃OS

8-[3-(Methylsulfanyl)benzoyl]-3-(1H-pyrazol-1-yl)-8-azabicyclo[3.2.1]octane

CAS 2320416-53-1C₁₈H₂₁N₃OS

1-Cyclopentyl-4-(4-(methylthio)phenyl)-4,5-dihydro-1H-pyrazolo[3,4-b]pyridin-6(7H)-one

CAS 1310941-73-1C₁₈H₂₁N₃OS

4-tert-Butyl-N-[(4-methylpyridin-2-yl)carbamothioyl]benzamide

CAS 428826-24-8C₁₈H₂₁N₃OS

2-Cyano-N-[4-(4-hexylphenyl)-1,3-thiazol-2-yl]acetamide

CAS 851169-61-4C₁₈H₂₁N₃OS

N-Butyl-3-[[(phenylamino)thioxomethyl]amino]benzamide

CAS 24775-46-0C₁₈H₂₁N₃OS

2-(Methylsulfanyl)-N-[2-(piperidin-1-yl)phenyl]pyridine-3-carboxamide

CAS 1090737-88-4C₁₈H₂₁N₃OS

1-[(E)-(2-Hydroxyphenyl)methylideneamino]-3-(5-methyl-2-propan-2-ylphenyl)thiourea

CAS 6641-95-8C₁₈H₂₁N₃OS

1-Benzyl-4-({4H,5H,6H-cyclopenta[d][1,3]thiazol-2-yl}methyl)piperazin-2-one

CAS 2415630-81-6C₁₈H₂₁N₃OS

N-{2-[(Butan-2-yl)oxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-amine

CAS 917907-69-8C₁₈H₂₁N₃OS

N-{2-[(2-Methylpentan-3-yl)oxy]phenyl}thieno[2,3-d]pyrimidin-4-amine

CAS 917906-98-0C₁₈H₂₁N₃OS

N-[2-(1-Cyclohexen-1-yl)ethyl]-2-(phenylamino)-4-thiazolecarboxamide

CAS 1208878-63-0C₁₈H₂₁N₃OS

N-(2-Ethoxyphenyl)-6-methyl-5-propylthieno[2,3-d]pyrimidin-4-amine

CAS 917907-75-6C₁₈H₂₁N₃OS

4-Cyclobutylidene-1-[4-methyl-2-(1H-pyrrol-1-yl)-1,3-thiazole-5-carbonyl]piperidine

CAS 2319637-60-8C₁₈H₂₁N₃OS

1-Benzyl-4-[(2-cyclopropyl-1,3-thiazol-4-yl)methyl]piperazin-2-one

CAS 2415490-58-1C₁₈H₂₁N₃OS

2-[1-(2-Hydroxyphenyl)ethylidene]-N-(2,4,6-trimethylphenyl)hydrazinecarbothioamide

CAS 22225-80-5C₁₈H₂₁N₃OS

4-[3-(Thiomorpholine-4-carbonyl)pyrrolidin-1-yl]quinoline

CAS 2877761-71-0C₁₈H₂₁N₃OS

N-[(2-Methyl-1,3-thiazol-5-yl)methyl]-N-[(5,6,7,8-tetrahydroisoquinolin-1-yl)methyl]prop-2-enamide

CAS 2411245-95-7C₁₈H₂₁N₃OS

5,7-Dimethyl-2-(propylamino)-4-(3-pyridinylmethyl)-1,3-benzothiazol-6-ol

CAS 767258-15-1C₁₈H₂₁N₃OS

1-Cyclopropanecarbonyl-4-[(2-phenyl-1,3-thiazol-4-yl)methyl]piperazine

CAS 1172937-67-5C₁₈H₂₁N₃OS

N-[1-(4-Phenyl-1,3-thiazol-2-yl)piperidin-3-yl]cyclopropanecarboxamide

CAS 2742059-68-1C₁₈H₂₁N₃OS

Frequently asked questions

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What is the molar mass of C18H21N3OS?

The molar mass of C18H21N3OS is 327.45 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 327.1405 Da.

How many compounds have the formula C18H21N3OS?

CompoundList lists 134 compounds with the molecular formula C18H21N3OS, including 2-(Benzylthio)-1-(2-cyclopropyl-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)ethanone, N-(1-(Benzo[b]thiophen-3-yl)propan-2-yl)-1,3,5-trimethyl-1H-pyrazole-4-carboxamide, N-({[2,4'-Bipyridine]-4-yl}methyl)-2-(cyclopentylsulfanyl)acetamide. 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 C18H21N3OS?

C18H21N3OS has a degree of unsaturation of 10. 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.