Molecular formula

C₁₈H₂₁NO₂S

133 compounds have this formula on CompoundList.

Molar mass: 315.43g/mol
Monoisotopic mass: 315.1293Da
Atoms: 43
Elements: 5
Rings plus double bonds: 9

The formula C18H21NO2S describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 2 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 × 1868.54%
12.011 × 18 = 216.198 g/mol
H Hydrogen × 216.71%
1.008 × 21 = 21.168 g/mol
N Nitrogen × 14.44%
14.007 × 1 = 14.007 g/mol
O Oxygen × 210.14%
15.999 × 2 = 31.998 g/mol
S Sulfur × 110.16%
32.06 × 1 = 32.060 g/mol

Look up another formula

Compounds with the formula C18H21NO2S

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

Showing 101 to 133 of 133 compounds

3-Phenylsulfanyl-N-(3-propan-2-yloxyphenyl)propanamide

CAS 915903-55-8C₁₈H₂₁NO₂S

N-[3-(3-Methoxyphenyl)propyl]-2-(methylsulfanyl)benzamide

CAS 928986-70-3C₁₈H₂₁NO₂S

2-Methyl-1-[(2,4,6-trimethylphenyl)sulfonyl]indoline

CAS 899235-61-1C₁₈H₂₁NO₂S

S-[(4-Ethylphenyl)phenylmethyl]cysteine

CAS 229962-80-5C₁₈H₂₁NO₂S

[(2,3,4,5-Tetramethylphenyl)sulfonyl]indoline

CAS 1110975-55-7C₁₈H₂₁NO₂S

(2R)-2-[(R)-(2-Methoxyphenyl)sulfanyl-phenylmethyl]morpholine

CAS 667876-44-0C₁₈H₂₁NO₂S

1-(4-tert-Butylbenzene-1-sulfonyl)-2-phenylaziridine

CAS 918776-51-9C₁₈H₂₁NO₂S

N-(4-{[3-(Benzyloxy)propyl]sulfanyl}phenyl)acetamide

CAS 1787986-22-4C₁₈H₂₁NO₂S

N-((4-Methoxytetrahydro-2H-thiopyran-4-yl)methyl)-1-naphthamide

CAS 2034244-35-2C₁₈H₂₁NO₂S

N-(2-(5-Acetylthiophen-2-yl)ethyl)-2-phenylbutanamide

CAS 2034569-77-0C₁₈H₂₁NO₂S

N-(2-((Tetrahydro-2H-pyran-4-yl)thio)ethyl)-1-naphthamide

CAS 1903251-05-7C₁₈H₂₁NO₂S

tert-Butyl 4-phenyl-6,7-dihydro-4H-thieno[3,2-c]pyridine-5-carboxylate

CAS 2170205-12-4C₁₈H₂₁NO₂S

2-(4-Ethoxyphenyl)-N-{[1-(thiophen-3-yl)cyclopropyl]methyl}acetamide

CAS 2415533-75-2C₁₈H₂₁NO₂S

N-(1-Benzothiophen-2-ylmethyl)-N-(2-methyloxan-4-yl)prop-2-enamide

CAS 2411305-94-5C₁₈H₂₁NO₂S

N-[(4-Hydroxy-4,5,6,7-tetrahydro-1-benzothiophen-4-yl)methyl]-2-(3-methylphenyl)acetamide

CAS 2549039-81-6C₁₈H₂₁NO₂S

3-(1-tert-Butyl-2-thioxo-1,2-dihydropyridin-3-yl)-3-hydroxy-1-phenylpropan-1-one

CAS 107113-80-4C₁₈H₂₁NO₂S

N-(4-tert-Butylphenyl)-2-phenylethene-1-sulfonamide

CAS 1089612-13-4C₁₈H₂₁NO₂S

N-[(2,4-Dimethylphenyl)methyl]-N-methyl-2-phenylethene-1-sulfonamide

CAS 1241684-75-2C₁₈H₂₁NO₂S

Pyrrolidine, 1-[(4-methylphenyl)sulfonyl]-3-(phenylmethyl)-

CAS 86553-38-0C₁₈H₂₁NO₂S

2-(Diphenylmethanesulfinyl)-N-(propan-2-yl)acetamide

CAS 90280-09-4C₁₈H₂₁NO₂S

Ethyl (6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)(2-methylphenyl)acetate

CAS 90055-53-1C₁₈H₂₁NO₂S

4-Methyl-N-[1-(4-methylphenyl)but-3-en-1-yl]benzene-1-sulfonamide

CAS 243671-17-2C₁₈H₂₁NO₂S

1-{[4'-(Methylsulfonyl)biphenyl-4-yl]methyl}pyrrolidine

CAS 1269109-81-0C₁₈H₂₁NO₂S

4-Methyl-N-(pent-4-en-1-yl)-N-phenylbenzenesulfonamide

CAS 27238-03-5C₁₈H₂₁NO₂S

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What is the molar mass of C18H21NO2S?

The molar mass of C18H21NO2S is 315.43 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 315.1293 Da.

How many compounds have the formula C18H21NO2S?

CompoundList lists 133 compounds with the molecular formula C18H21NO2S, including 3-Phenylsulfanyl-N-(3-propan-2-yloxyphenyl)propanamide, N-[3-(3-Methoxyphenyl)propyl]-2-(methylsulfanyl)benzamide, 2-Methyl-1-[(2,4,6-trimethylphenyl)sulfonyl]indoline. 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 C18H21NO2S?

C18H21NO2S has a degree of unsaturation of 9. 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.