Molecular formula
C21H18N2OS
94 compounds have this formula on CompoundList.
- Molar mass
- 346.45g/mol
- Monoisotopic mass
- 346.1140Da
- Atoms
- 43
- Elements
- 5
- Rings plus double bonds
- 14
The formula C21H18N2OS describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 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 × 2172.80%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 185.24%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 28.09%14.007 × 2 = 28.014 g/mol
- O Oxygen × 14.62%15.999 × 1 = 15.999 g/mol
- S Sulfur × 19.25%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H18N2OS
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 94 of 94 compounds
N-(2-Phenylethyl)-10H-phenothiazine-10-carboxamide
CAS 432535-63-2C21H18N2OS
3-Cyano-N-(2-phenylethyl)-N-(thiophen-2-ylmethyl)benzamide
CAS 878593-81-8C21H18N2OS
![N'-[(E)-(3-Methylphenyl)methylidene]-4,5-dihydronaphtho[1,2-b]thiophene-2-carbohydrazide chemical structure, C21H18N2OS, CAS 478033-53-3](/s/QLNBBJPZXKTDNN-LPYMAVHISA-N.svg)
N'-[(E)-(3-Methylphenyl)methylidene]-4,5-dihydronaphtho[1,2-b]thiophene-2-carbohydrazide
CAS 478033-53-3C21H18N2OS
![N-[(4-Methylphenyl)carbamothioyl]biphenyl-4-carboxamide chemical structure, C21H18N2OS, CAS 428860-02-0](/s/DPLABBMVCWXSBA-UHFFFAOYSA-N.svg)
N-[(4-Methylphenyl)carbamothioyl]biphenyl-4-carboxamide
CAS 428860-02-0C21H18N2OS
![1-(5,6-Dihydrobenzo[b][1]benzazepin-11-yl)-2-pyridin-2-ylsulfanylethanone chemical structure, C21H18N2OS, CAS 385389-60-6](/s/ZEBSOKREEKEGRZ-UHFFFAOYSA-N.svg)
1-(5,6-Dihydrobenzo[b][1]benzazepin-11-yl)-2-pyridin-2-ylsulfanylethanone
CAS 385389-60-6C21H18N2OS
N-(4-Ethylphenyl)-10H-phenothiazine-10-carboxamide
CAS 432503-37-2C21H18N2OS
(E)-2-(4-(4-Hydroxyphenyl)thiazol-2-yl)-3-(4-isopropylphenyl)acrylonitrile
CAS 402953-33-7C21H18N2OS
N-(2,4-Dimethylphenyl)-10H-phenothiazine-10-carboxamide
CAS 443327-91-1C21H18N2OS
N-(2-Ethylphenyl)-10H-phenothiazine-10-carboxamide
CAS 443327-59-1C21H18N2OS
4-(2-Methoxynaphthalen-1-yl)-6-phenyl-3,4-dihydropyrimidine-2(1H)-thione
CAS 683778-35-0C21H18N2OS
![(E)-N-(3,6-Dimethylbenzo[d]thiazol-2(3H)-ylidene)-2-(naphthalen-1-yl)acetamide chemical structure, C21H18N2OS, CAS 477511-71-0](/s/YGUJUEXPSGXZEX-UHFFFAOYSA-N.svg)
(E)-N-(3,6-Dimethylbenzo[d]thiazol-2(3H)-ylidene)-2-(naphthalen-1-yl)acetamide
CAS 477511-71-0C21H18N2OS
![N-(3-Cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-2-naphthamide chemical structure, C21H18N2OS, CAS 438035-09-7](/s/OAYIWHWHMSYTKG-UHFFFAOYSA-N.svg)
N-(3-Cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)-2-naphthamide
CAS 438035-09-7C21H18N2OS
![7-Methyl-4-naphthalen-2-yloxy-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidine chemical structure, C21H18N2OS, CAS 670270-21-0](/s/LZADPEKQPMLBMG-UHFFFAOYSA-N.svg)
7-Methyl-4-naphthalen-2-yloxy-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidine
CAS 670270-21-0C21H18N2OS
![3-(2,4-Dimethylbenzyl)-7-phenylthieno[3,2-d]pyrimidin-4(3H)-one chemical structure, C21H18N2OS, CAS 1105224-57-4](/s/QCYMEYADODUONE-UHFFFAOYSA-N.svg)
3-(2,4-Dimethylbenzyl)-7-phenylthieno[3,2-d]pyrimidin-4(3H)-one
CAS 1105224-57-4C21H18N2OS
![N-(5,7-Dimethylbenzo[d]thiazol-2-yl)-2-(naphthalen-1-yl)acetamide chemical structure, C21H18N2OS, CAS 897759-62-5](/s/KOSGLLUHKBGDDU-UHFFFAOYSA-N.svg)
N-(5,7-Dimethylbenzo[d]thiazol-2-yl)-2-(naphthalen-1-yl)acetamide
CAS 897759-62-5C21H18N2OS
![5-(4-Methylphenyl)-2-(thiophen-2-yl)-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazine chemical structure, C21H18N2OS, CAS 332062-53-0](/s/FAPJNWPAOVBJEE-UHFFFAOYSA-N.svg)
5-(4-Methylphenyl)-2-(thiophen-2-yl)-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazine
CAS 332062-53-0C21H18N2OS
N-(3-Cyano-4,5,6,7-tetrahydro-1-benzothien-2-yl)-2-(1-naphthyl)acetamide
CAS 300829-50-9C21H18N2OS
![7-Methoxy-4-methyl-2-[(naphthalen-1-ylmethyl)sulfanyl]quinazoline chemical structure, C21H18N2OS, CAS 488715-26-0](/s/SDAAUKBXSBVFBC-UHFFFAOYSA-N.svg)
7-Methoxy-4-methyl-2-[(naphthalen-1-ylmethyl)sulfanyl]quinazoline
CAS 488715-26-0C21H18N2OS
1-(3-Methylbenzyl)-4-(methylsulfanyl)-2-oxo-6-phenyl-1,2-dihydro-3-pyridinecarbonitrile
CAS 478043-01-5C21H18N2OS
![5-(2,4-Dimethylphenyl)-3-(4-methylphenyl)thieno[2,3-d]pyrimidin-4-one chemical structure, C21H18N2OS, CAS 312946-78-4](/s/ALPMMDMTEBAASI-UHFFFAOYSA-N.svg)
5-(2,4-Dimethylphenyl)-3-(4-methylphenyl)thieno[2,3-d]pyrimidin-4-one
CAS 312946-78-4C21H18N2OS
![2-[(4-Methoxybenzyl)sulfanyl]-4-methyl-6-phenylnicotinonitrile chemical structure, C21H18N2OS, CAS 341967-44-0](/s/UGTCPTYLKJPRPQ-UHFFFAOYSA-N.svg)
2-[(4-Methoxybenzyl)sulfanyl]-4-methyl-6-phenylnicotinonitrile
CAS 341967-44-0C21H18N2OS
![4-(4-Isopropylphenoxy)-6-phenylthieno[2,3-d]pyrimidine chemical structure, C21H18N2OS, CAS 379239-38-0](/s/QVDJZOVKCZJXRA-UHFFFAOYSA-N.svg)
4-(4-Isopropylphenoxy)-6-phenylthieno[2,3-d]pyrimidine
CAS 379239-38-0C21H18N2OS
![(E)-2-[4-(4-Ethoxyphenyl)-1,3-thiazol-2-yl]-3-(4-methylphenyl)prop-2-enenitrile chemical structure, C21H18N2OS, CAS 313686-13-4](/s/RMTIDMIYRFSZEA-LDADJPATSA-N.svg)
(E)-2-[4-(4-Ethoxyphenyl)-1,3-thiazol-2-yl]-3-(4-methylphenyl)prop-2-enenitrile
CAS 313686-13-4C21H18N2OS
N-(2,3-Dihydroindole-1-carbothioyl)-2-naphthalen-1-ylacetamide
CAS 642994-56-7C21H18N2OS
- 1-(4-Methylbenzyl)-4-(methylsulfanyl)-2-oxo-6-phenyl-1,2-dihydro-3-pyridinecarbonitrile478042-81-8C21H18N2OS
- 2-(Ethylthio)-4-(2-methoxyphenyl)-6-phenylnicotinonitrile312758-15-9C21H18N2OS
- N-[2-(1H-Indol-3-yl)-2-phenylethyl]thiophene-2-carboxamide851205-34-0C21H18N2OS
- 6-(3,4-Dimethylphenyl)-2-mercapto-4-(4-methoxyphenyl)nicotinonitrile885270-05-3C21H18N2OS
- 3-(2-Methylbenzyl)-7-(2-methylphenyl)thieno[3,2-d]pyrimidin-4(3H)-one1207004-11-2C21H18N2OS
- (1)Benzothieno(2,3-d)pyrimidin-4-one, 5,6,7,8-tetrahydro-2-methyl-3-(2-naphthyl)-35973-87-6C21H18N2OS
- N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-4-methylbenzamide6427-34-5C21H18N2OS
- N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-3-methylbenzamide356076-89-6C21H18N2OS
- N-(3-Cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)naphthalene-1-carboxamide364381-04-4C21H18N2OS
- 3-(Naphthalen-1-yloxy)-8-thia-4,6-diazatricyclo[7.5.0.0^{2,7}]tetradeca-1(9),2(7),3,5-tetraene315683-32-0C21H18N2OS
- N-Benzyl-N-methylphenothiazine-10-carboxamide817573-46-9C21H18N2OS
- N-(Benzhydrylcarbamothioyl)benzamide355817-50-4C21H18N2OS
- 2-(1-Methylindol-3-yl)sulfanyl-N-naphthalen-1-ylacetamide862825-62-5C21H18N2OS
- N-[2-(1H-Indol-3-yl)ethyl]-5-phenyl-2-thiophenecarboxamide1190266-18-2C21H18N2OS
- 3-(3-Methylbenzyl)-7-(2-methylphenyl)thieno[3,2-d]pyrimidin-4(3H)-one1207041-37-9C21H18N2OS
- 3-(2-Methylbenzyl)-7-(3-methylphenyl)thieno[3,2-d]pyrimidin-4(3H)-one1207032-71-0C21H18N2OS
- 2-(1H-Indol-1-yl)-N-(2-(thiophen-3-yl)benzyl)acetamide1797638-00-6C21H18N2OS
- N-(2,3-Dimethylphenyl)-10H-phenothiazine-10-carboxamide432513-01-4C21H18N2OS
- 1-(2-Methylphenyl)-3-(9H-xanthen-9-yl)thiourea650595-03-2C21H18N2OS
- N-(4-Isopropylphenyl)thieno[2,3-b]quinoline-2-carboxamide439111-78-1C21H18N2OS
- N'-(Diphenylmethylene)-2-(phenylsulfanyl)acetohydrazide341967-99-5C21H18N2OS
- N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-2-phenylacetamide429654-69-3C21H18N2OS
- N-(4,6-Dimethylbenzo[d]thiazol-2-yl)-2-(naphthalen-1-yl)acetamide324758-44-3C21H18N2OS
- N-(3-Methylbenzo[g][1,3]benzothiazol-2-ylidene)-3-phenylpropanamide477504-56-6C21H18N2OS
- N-(3-Cyano-6-methyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)naphthalene-2-carboxamide391222-22-3C21H18N2OS
- 4-(3,4-Dimethylphenoxy)-6-methyl-5-phenylthieno[2,3-d]pyrimidine496028-47-8C21H18N2OS
- (2Z)-2-[4-(3,4-Dimethylphenyl)-1,3-thiazol-2-yl]-3-(4-methoxyphenyl)prop-2-enenitrile476669-12-2C21H18N2OS
- 3-(2,5-Dimethylbenzyl)-7-phenylthieno[3,2-d]pyrimidin-4(3H)-one1105236-39-2C21H18N2OS
- 3-(4-Methylbenzyl)-7-(3-methylphenyl)thieno[3,2-d]pyrimidin-4(3H)-one1326903-15-4C21H18N2OS
- N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-2-methylbenzamide333740-57-1C21H18N2OS
- N-(3,5-Dimethylphenyl)phenothiazine-10-carboxamide461656-73-5C21H18N2OS
- N-(Diphenylacetyl)-N'-phenylthiourea94871-72-4C21H18N2OS
- N-[2-(4-Methylbenzoyl)phenyl]-N'-phenylthiourea406477-24-5C21H18N2OS
- (2-(Benzylthio)-4,5-dihydro-1H-imidazol-1-yl)(naphthalen-1-yl)methanone862826-71-9C21H18N2OS
- N-(3-Cyano-5-methyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)naphthalene-1-carboxamide328539-92-0C21H18N2OS
- (E)-2-[4-(2,4-Dimethylphenyl)-1,3-thiazol-2-yl]-3-(2-methoxyphenyl)prop-2-enenitrile5302-61-4C21H18N2OS
- (Z)-3-(4-Ethylphenyl)-2-(4-(4-methoxyphenyl)thiazol-2-yl)acrylonitrile476672-03-4C21H18N2OS
- (Z)-3-(4-Ethylphenyl)-2-(4-(3-methoxyphenyl)thiazol-2-yl)acrylonitrile476672-13-6C21H18N2OS
- 4-Benzyl-N-(3-cyano-4,5-dimethylthiophen-2-yl)benzamide896303-62-1C21H18N2OS
- (Z)-2-(4-(3,4-Dimethylphenyl)thiazol-2-yl)-3-(2-methoxyphenyl)acrylonitrile476668-92-5C21H18N2OS
- (Z)-2-(4-(4-Ethylphenyl)thiazol-2-yl)-3-(2-methoxyphenyl)acrylonitrile476668-93-6C21H18N2OS
- (Z)-2-(4-(3,4-Dimethylphenyl)thiazol-2-yl)-3-(3-methoxyphenyl)acrylonitrile476669-00-8C21H18N2OS
- (Z)-2-(4-(4-Ethylphenyl)thiazol-2-yl)-3-(3-methoxyphenyl)acrylonitrile476669-01-9C21H18N2OS
- 7-(3-Methylthiophen-2-yl)-4-phenyl-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraene899973-18-3C21H18N2OS
- 4-(4-Methylphenyl)-7-(thiophen-3-yl)-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraene899973-20-7C21H18N2OS
- 3-(2-Methylbenzyl)-7-(p-tolyl)thieno[3,2-d]pyrimidin-4(3H)-one1207014-35-4C21H18N2OS
- 7-(3-Methylphenyl)-3-[(3-methylphenyl)methyl]-3H,4H-thieno[3,2-d]pyrimidin-4-one1206989-01-6C21H18N2OS
- 3-(4-Cyanophenyl)-N-(2-(thiophen-3-yl)benzyl)propanamide1796947-25-5C21H18N2OS
- 2-(1H-Indol-3-yl)-N-(2-(thiophen-3-yl)benzyl)acetamide1797713-80-4C21H18N2OS
- N-[Methyl(phenyl)carbamothioyl]-4-phenylbenzamide712318-89-3C21H18N2OS
- 1-(2-Methyl-1H-indol-3-yl)-2-[(4-methylquinolin-2-yl)sulfanyl]ethanone496023-17-7C21H18N2OS
- Thiourea, N-(2-benzoylphenyl)-N'-(3-methylphenyl)-61964-63-4C21H18N2OS
- Thiourea, N-(2-benzoylphenyl)-N'-(4-methylphenyl)-61964-65-6C21H18N2OS
- Thiourea, N-(2-benzoylphenyl)-N'-(2-methylphenyl)-61964-67-8C21H18N2OS
- (Z)-2-(4-(4-Ethoxyphenyl)thiazol-2-yl)-3-(o-tolyl)acrylonitrile476668-60-7C21H18N2OS
- (Z)-2-(4-(4-Ethoxyphenyl)thiazol-2-yl)-3-(m-tolyl)acrylonitrile476668-77-6C21H18N2OS
- 6,7-Dimethyl-2-[[2-(4-methylphenyl)-2-oxoethyl]thio]-3-quinolinecarbonitrile1105189-92-1C21H18N2OS
- 3-(Benzo[D]thiazol-2-yl)-4'-(dimethylamino)-[1,1'-biphenyl]-4-ol1351665-00-3C21H18N2OS
- 3-(4-Ethylphenyl)-2-[4-(4-methoxyphenyl)-1,3-thiazol-2-yl]prop-2-enenitrileC21H18N2OS
- 2H-Benzimidazole-2-thione, 1-(4-ethoxyphenyl)-1,3-dihydro-3-phenyl-88978-24-9C21H18N2OS
- N-[(4-Methyl[1,1'-biphenyl]-2-yl)carbamothioyl]benzamide76838-66-9C21H18N2OS
- N-[(2'-Methyl[1,1'-biphenyl]-2-yl)carbamothioyl]benzamide76838-53-4C21H18N2OS
- N-[(3'-Methyl[1,1'-biphenyl]-2-yl)carbamothioyl]benzamide76838-61-4C21H18N2OS
- N-[(4'-Methyl[1,1'-biphenyl]-2-yl)carbamothioyl]benzamide76838-54-5C21H18N2OS
- 3-(2-Benzoyl-5-methylphenyl)-1-phenylthiourea1808494-12-3C21H18N2OS
- N-Benzyl-4-(4-methoxynaphthalen-1-yl)-1,3-thiazol-2-amine901273-39-0C21H18N2OS
- 2,5,6-Triphenyl-5,6-dihydro-4H-1,3,4-thiadiazin-5-ol62625-48-3C21H18N2OS
- N-((2-Benzylphenyl)carbamothioyl)benzamide76838-40-9C21H18N2OS
- 2-(2-Hydroxyphenyl)-5,5-diphenylimidazolidine-4-thione62218-77-3C21H18N2OS
- alpha-[(4-Ethylphenyl)methylene]-4-(4-methoxyphenyl)-2-thiazoleacetonitrileC21H18N2OS
Frequently asked questions
What is the molar mass of C21H18N2OS?
The molar mass of C21H18N2OS is 346.45 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 346.1140 Da.
How many compounds have the formula C21H18N2OS?
CompoundList lists 94 compounds with the molecular formula C21H18N2OS, including N-(2-Phenylethyl)-10H-phenothiazine-10-carboxamide, 3-Cyano-N-(2-phenylethyl)-N-(thiophen-2-ylmethyl)benzamide, N'-[(E)-(3-Methylphenyl)methylidene]-4,5-dihydronaphtho[1,2-b]thiophene-2-carbohydrazide. 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 C21H18N2OS?
C21H18N2OS 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.