CompoundList
Sign in
Molecular formula

C18H21N3O2S2

43 compounds have this formula on CompoundList.

Molar mass
375.50g/mol
Monoisotopic mass
375.1075Da
Atoms
46
Elements
5
Rings plus double bonds
10

The formula C18H21N3O2S2 describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 2 oxygen atoms and 2 sulfur atoms. 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 × 1857.58%
    12.011 × 18 = 216.198 g/mol
  • H Hydrogen × 215.64%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 311.19%
    14.007 × 3 = 42.021 g/mol
  • O Oxygen × 28.52%
    15.999 × 2 = 31.998 g/mol
  • S Sulfur × 217.08%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C18H21N3O2S2

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

Showing 1 to 43 of 43 compounds

Ethyl 6-methyl-2-(phenylcarbamothioylamino)-5,7-dihydro-4H-thieno[2,3-c]pyridine-3-carboxylate chemical structure, C18H21N3O2S2, CAS 5684-00-4
Ethyl 6-methyl-2-(phenylcarbamothioylamino)-5,7-dihydro-4H-thieno[2,3-c]pyridine-3-carboxylate
CAS 5684-00-4C18H21N3O2S2
4-(Benzenesulfonyl)-N-benzylpiperazine-1-carbothioamide chemical structure, C18H21N3O2S2, CAS 794585-07-2
4-(Benzenesulfonyl)-N-benzylpiperazine-1-carbothioamide
CAS 794585-07-2C18H21N3O2S2
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-phenethylacetamide chemical structure, C18H21N3O2S2, CAS 689262-50-8
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-phenethylacetamide
CAS 689262-50-8C18H21N3O2S2
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(2,5-dimethylphenyl)acetamide chemical structure, C18H21N3O2S2, CAS 688353-35-7
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(2,5-dimethylphenyl)acetamide
CAS 688353-35-7C18H21N3O2S2
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(3,5-dimethylphenyl)acetamide chemical structure, C18H21N3O2S2, CAS 688353-37-9
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(3,5-dimethylphenyl)acetamide
CAS 688353-37-9C18H21N3O2S2
1-[(5-Methyl-4-phenylthiophene-3-carbonyl)amino]-3-(oxolan-2-ylmethyl)thiourea chemical structure, C18H21N3O2S2, CAS 438229-41-5
1-[(5-Methyl-4-phenylthiophene-3-carbonyl)amino]-3-(oxolan-2-ylmethyl)thiourea
CAS 438229-41-5C18H21N3O2S2
2-[(3-Ethyl-6-methyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]-N-(3-methylphenyl)acetamide chemical structure, C18H21N3O2S2, CAS 851409-37-5
2-[(3-Ethyl-6-methyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]-N-(3-methylphenyl)acetamide
CAS 851409-37-5C18H21N3O2S2
N-Benzyl-2-[(3-ethyl-6-methyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]acetamide chemical structure, C18H21N3O2S2, CAS 851409-69-3
N-Benzyl-2-[(3-ethyl-6-methyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]acetamide
CAS 851409-69-3C18H21N3O2S2
2-(N'-Acetylphenylalanylamino)ethyl-2'-pyridyl disulfide chemical structure, C18H21N3O2S2, CAS 83578-20-5
2-(N'-Acetylphenylalanylamino)ethyl-2'-pyridyl disulfide
CAS 83578-20-5C18H21N3O2S2
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(2,3-dimethylphenyl)acetamide chemical structure, C18H21N3O2S2, CAS 688353-34-6
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(2,3-dimethylphenyl)acetamide
CAS 688353-34-6C18H21N3O2S2
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(2,4-dimethylphenyl)acetamide chemical structure, C18H21N3O2S2, CAS 688353-36-8
2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-(2,4-dimethylphenyl)acetamide
CAS 688353-36-8C18H21N3O2S2
2-[(3,6-Dimethyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]-N-(4-ethylphenyl)acetamide chemical structure, C18H21N3O2S2, CAS 688353-54-0
2-[(3,6-Dimethyl-4-oxo-6,7-dihydrothieno[3,2-d]pyrimidin-2-yl)sulfanyl]-N-(4-ethylphenyl)acetamide
CAS 688353-54-0C18H21N3O2S2
4-(4-Methylbenzenesulfonyl)-N-phenylpiperazine-1-carbothioamide chemical structure, C18H21N3O2S2, CAS 18162-14-6
4-(4-Methylbenzenesulfonyl)-N-phenylpiperazine-1-carbothioamide
CAS 18162-14-6C18H21N3O2S2
1-Phenyl-3-(4-piperidin-1-ylsulfonylphenyl)thiourea chemical structure, C18H21N3O2S2, CAS 22704-33-2
1-Phenyl-3-(4-piperidin-1-ylsulfonylphenyl)thiourea
CAS 22704-33-2C18H21N3O2S2
N-(4-(Methylsulfonyl)phenyl)-4-phenylpiperazine-1-carbothioamide chemical structure, C18H21N3O2S2, CAS 900135-73-1
N-(4-(Methylsulfonyl)phenyl)-4-phenylpiperazine-1-carbothioamide
CAS 900135-73-1C18H21N3O2S2
N-[4-({[2-(Cyclohex-1-en-1-yl)ethyl]carbamoyl}methyl)-1,3-thiazol-2-yl]thiophene-3-carboxamide chemical structure, C18H21N3O2S2, CAS 1209606-79-0
N-[4-({[2-(Cyclohex-1-en-1-yl)ethyl]carbamoyl}methyl)-1,3-thiazol-2-yl]thiophene-3-carboxamide
CAS 1209606-79-0C18H21N3O2S2
1-(6-Methoxy-2,2,4-trimethylquinolin-1-yl)-2-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]ethanone chemical structure, C18H21N3O2S2, CAS 333746-31-9
1-(6-Methoxy-2,2,4-trimethylquinolin-1-yl)-2-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]ethanone
CAS 333746-31-9C18H21N3O2S2
3-(4-((1H-Imidazol-1-yl)methyl)phenyl)-N-(tert-butyl)thiophene-2-sulfonamide chemical structure, C18H21N3O2S2, CAS 2089650-46-2
3-(4-((1H-Imidazol-1-yl)methyl)phenyl)-N-(tert-butyl)thiophene-2-sulfonamide
CAS 2089650-46-2C18H21N3O2S2
(Z)-5-(4-Methylbenzylidene)-3-(2-(4-methylpiperazin-1-yl)-2-oxoethyl)-2-thioxothiazolidin-4-one chemical structure, C18H21N3O2S2, CAS 303055-82-5
(Z)-5-(4-Methylbenzylidene)-3-(2-(4-methylpiperazin-1-yl)-2-oxoethyl)-2-thioxothiazolidin-4-one
CAS 303055-82-5C18H21N3O2S2
1-(3,5-Di(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-3-morpholinopropan-1-one chemical structure, C18H21N3O2S2, CAS 871307-99-2
1-(3,5-Di(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-3-morpholinopropan-1-one
CAS 871307-99-2C18H21N3O2S2
2-((2-Oxo-2-(piperidin-1-yl)ethyl)thio)-N-(4-phenylthiazol-2-yl)acetamide chemical structure, C18H21N3O2S2, CAS 681222-18-4
2-((2-Oxo-2-(piperidin-1-yl)ethyl)thio)-N-(4-phenylthiazol-2-yl)acetamide
CAS 681222-18-4C18H21N3O2S2
2-((2-Oxo-2-(pyrrolidin-1-yl)ethyl)thio)-N-(4-(p-tolyl)thiazol-2-yl)acetamide chemical structure, C18H21N3O2S2, CAS 681222-31-1
2-((2-Oxo-2-(pyrrolidin-1-yl)ethyl)thio)-N-(4-(p-tolyl)thiazol-2-yl)acetamide
CAS 681222-31-1C18H21N3O2S2
N-((1-(2-(Methylthio)nicotinoyl)piperidin-4-yl)methyl)thiophene-3-carboxamide chemical structure, C18H21N3O2S2, CAS 1234813-24-1
N-((1-(2-(Methylthio)nicotinoyl)piperidin-4-yl)methyl)thiophene-3-carboxamide
CAS 1234813-24-1C18H21N3O2S2
Methyl 6-methyl-2-{[(pyridin-4-ylmethyl)carbamothioyl]amino}-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate chemical structure, C18H21N3O2S2, CAS 588715-04-2
Methyl 6-methyl-2-{[(pyridin-4-ylmethyl)carbamothioyl]amino}-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate
CAS 588715-04-2C18H21N3O2S2

Frequently asked questions

What is the molar mass of C18H21N3O2S2?

The molar mass of C18H21N3O2S2 is 375.50 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 2 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 375.1075 Da.

How many compounds have the formula C18H21N3O2S2?

CompoundList lists 43 compounds with the molecular formula C18H21N3O2S2, including Ethyl 6-methyl-2-(phenylcarbamothioylamino)-5,7-dihydro-4H-thieno[2,3-c]pyridine-3-carboxylate, 4-(Benzenesulfonyl)-N-benzylpiperazine-1-carbothioamide, 2-((3,6-Dimethyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)-N-phenethylacetamide. 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 C18H21N3O2S2?

C18H21N3O2S2 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.