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Molecular formula

C21H19NOS

21 compounds have this formula on CompoundList.

Molar mass
333.45g/mol
Monoisotopic mass
333.1187Da
Atoms
43
Elements
5
Rings plus double bonds
13

The formula C21H19NOS describes a molecule made of 21 carbon atoms, 19 hydrogen atoms, 1 nitrogen atom, 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 × 2175.64%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 195.74%
    1.008 × 19 = 19.152 g/mol
  • N Nitrogen × 14.20%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 14.80%
    15.999 × 1 = 15.999 g/mol
  • S Sulfur × 19.61%
    32.06 × 1 = 32.060 g/mol
Look up another formula

Compounds with the formula C21H19NOS

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

Showing 1 to 21 of 21 compounds

RefChem:357285 chemical structure, C21H19NOS, CAS 60246-64-2
RefChem:357285
CAS 60246-64-2C21H19NOS
N-(2-Ethylphenyl)-3-(4-phenyl-2-thienyl)-2-propenamide chemical structure, C21H19NOS, CAS 853348-13-7
N-(2-Ethylphenyl)-3-(4-phenyl-2-thienyl)-2-propenamide
CAS 853348-13-7C21H19NOS
(2-Amino-4,5,6,7-tetrahydrobenzo[b]thien-3-yl)[1,1a(2)-biphenyl]-4-ylmethanone chemical structure, C21H19NOS, CAS 304018-14-2
(2-Amino-4,5,6,7-tetrahydrobenzo[b]thien-3-yl)[1,1a(2)-biphenyl]-4-ylmethanone
CAS 304018-14-2C21H19NOS
4-Methyl-2-(4-phenylphenyl)-3H-1,4-benzothiazin-2-ol chemical structure, C21H19NOS, CAS 1314242-01-7
4-Methyl-2-(4-phenylphenyl)-3H-1,4-benzothiazin-2-ol
CAS 1314242-01-7C21H19NOS
2-(Benzylsulfanyl)-N-(1,2-dihydroacenaphthylen-5-yl)acetamide chemical structure, C21H19NOS, CAS 160007-80-7
2-(Benzylsulfanyl)-N-(1,2-dihydroacenaphthylen-5-yl)acetamide
CAS 160007-80-7C21H19NOS
N-Methyl-N,2-diphenyl-2-(phenylsulfanyl)acetamide chemical structure, C21H19NOS, CAS 335204-60-9
N-Methyl-N,2-diphenyl-2-(phenylsulfanyl)acetamide
CAS 335204-60-9C21H19NOS
N-(3-Methylphenyl)-2-phenyl-2-phenylsulfanylacetamide chemical structure, C21H19NOS, CAS 349425-16-7
N-(3-Methylphenyl)-2-phenyl-2-phenylsulfanylacetamide
CAS 349425-16-7C21H19NOS
N-Benzyl-2-phenyl-2-phenylsulfanylacetamide chemical structure, C21H19NOS, CAS 349427-88-9
N-Benzyl-2-phenyl-2-phenylsulfanylacetamide
CAS 349427-88-9C21H19NOS
N-(4-Methylphenyl)-2-phenyl-2-(phenylsulfanyl)acetamide chemical structure, C21H19NOS, CAS 349427-96-9
N-(4-Methylphenyl)-2-phenyl-2-(phenylsulfanyl)acetamide
CAS 349427-96-9C21H19NOS
N-(Diphenylmethyl)-2-(phenylsulfanyl)acetamide chemical structure, C21H19NOS, CAS 724735-09-5
N-(Diphenylmethyl)-2-(phenylsulfanyl)acetamide
CAS 724735-09-5C21H19NOS
N,N-Dibenzyl-1-(oxo-lambda~4~-sulfanylidene)-1-phenylmethanamine chemical structure, C21H19NOS, CAS 61821-39-4
N,N-Dibenzyl-1-(oxo-lambda~4~-sulfanylidene)-1-phenylmethanamine
CAS 61821-39-4C21H19NOS
4-(10H-Phenothiazin-10-ylmethyl)-2,6-xylenol chemical structure, C21H19NOS, CAS 85586-49-8
4-(10H-Phenothiazin-10-ylmethyl)-2,6-xylenol
CAS 85586-49-8C21H19NOS
N-(4-{[(4-Methylphenyl)sulfanyl]methyl}phenyl)benzenecarboxamide chemical structure, C21H19NOS, CAS 338398-71-3
N-(4-{[(4-Methylphenyl)sulfanyl]methyl}phenyl)benzenecarboxamide
CAS 338398-71-3C21H19NOS
N-(1,2-Dihydroacenaphthylen-5-yl)-2-(p-tolylthio)acetamide chemical structure, C21H19NOS, CAS 898438-35-2
N-(1,2-Dihydroacenaphthylen-5-yl)-2-(p-tolylthio)acetamide
CAS 898438-35-2C21H19NOS
Benzamide, N-[phenyl[(phenylmethyl)thio]methyl]- chemical structure, C21H19NOS, CAS 51643-94-8
Benzamide, N-[phenyl[(phenylmethyl)thio]methyl]-
CAS 51643-94-8C21H19NOS
4-(Methylsulfanyl)-10-(1-phenylethyl)-10H-phenoxazine chemical structure, C21H19NOS, CAS 113201-95-9
4-(Methylsulfanyl)-10-(1-phenylethyl)-10H-phenoxazine
CAS 113201-95-9C21H19NOS
5-Methyl-3-naphthalen-2-ylmethyl-2-phenyl-thiazolidin-4-one chemical structure, C21H19NOS, CAS 1255932-02-5
5-Methyl-3-naphthalen-2-ylmethyl-2-phenyl-thiazolidin-4-one
CAS 1255932-02-5C21H19NOS
2-[2-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)ethylidene]-3,4-dihydronaphthalen-1(2H)-one chemical structure, C21H19NOS, CAS 53704-21-5
2-[2-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)ethylidene]-3,4-dihydronaphthalen-1(2H)-one
CAS 53704-21-5C21H19NOS
6-[(Dibenzylamino)(sulfanyl)methylidene]cyclohexa-2,4-dien-1-one chemical structure, C21H19NOS, CAS 61629-28-5
6-[(Dibenzylamino)(sulfanyl)methylidene]cyclohexa-2,4-dien-1-one
CAS 61629-28-5C21H19NOS
(2E)-2-[(2Z)-2-(3-Ethyl-1,3-benzothiazol-2-ylidene)ethylidene]-3,4-dihydronaphthalen-1-one chemical structure, C21H19NOS
(2E)-2-[(2Z)-2-(3-Ethyl-1,3-benzothiazol-2-ylidene)ethylidene]-3,4-dihydronaphthalen-1-one
C21H19NOS
10-(4-Methoxyphenyl)-1,9-dimethyl-10H-phenothiazine chemical structure, C21H19NOS, CAS 2888555-64-2
10-(4-Methoxyphenyl)-1,9-dimethyl-10H-phenothiazine
CAS 2888555-64-2C21H19NOS

Frequently asked questions

What is the molar mass of C21H19NOS?

The molar mass of C21H19NOS is 333.45 g/mol, calculated from standard atomic weights for 21 carbon atoms, 19 hydrogen atoms, 1 nitrogen atom, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 333.1187 Da.

How many compounds have the formula C21H19NOS?

CompoundList lists 21 compounds with the molecular formula C21H19NOS, including RefChem:357285, N-(2-Ethylphenyl)-3-(4-phenyl-2-thienyl)-2-propenamide, (2-Amino-4,5,6,7-tetrahydrobenzo[b]thien-3-yl)[1,1a(2)-biphenyl]-4-ylmethanone. 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 C21H19NOS?

C21H19NOS has a degree of unsaturation of 13. 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.