Molecular formula
C21H18N2O2S
132 compounds have this formula on CompoundList.
- Molar mass
- 362.45g/mol
- Monoisotopic mass
- 362.1089Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 14
The formula C21H18N2O2S describes a molecule made of 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 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 × 2169.59%12.011 × 21 = 252.231 g/mol
- H Hydrogen × 185.01%1.008 × 18 = 18.144 g/mol
- N Nitrogen × 27.73%14.007 × 2 = 28.014 g/mol
- O Oxygen × 28.83%15.999 × 2 = 31.998 g/mol
- S Sulfur × 18.85%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C21H18N2O2S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 132 compounds
2-(4-Methoxyphenyl)-5-(2-thienyl)-1,10B-dihydropyrazolo(1,5-C)(1,3)benzoxazine
CAS 303060-84-6C21H18N2O2S
6-Methyl-3-(2-nitro-1-(2-thienyl)ethyl)-2-phenyl-1H-indole
CAS 1998197-39-9C21H18N2O2S
N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-2-phenoxyacetamide
CAS 428858-72-4C21H18N2O2S
![7-(4-Methoxyphenyl)-5,7-dihydro-6H-benzo[h][1,3]thiazolo[2,3-b]quinazolin-9(10H)-one chemical structure, C21H18N2O2S, CAS 157282-77-4](/s/BGMIFAULNOLKCG-UHFFFAOYSA-N.svg)
7-(4-Methoxyphenyl)-5,7-dihydro-6H-benzo[h][1,3]thiazolo[2,3-b]quinazolin-9(10H)-one
CAS 157282-77-4C21H18N2O2S
![[3-(2-Hydroxyphenyl)-5-(4-methylphenyl)-3,4-dihydropyrazol-2-yl]-thiophen-2-ylmethanone chemical structure, C21H18N2O2S, CAS 868155-48-0](/s/BFOMBLPFIDOMPL-UHFFFAOYSA-N.svg)
[3-(2-Hydroxyphenyl)-5-(4-methylphenyl)-3,4-dihydropyrazol-2-yl]-thiophen-2-ylmethanone
CAS 868155-48-0C21H18N2O2S
4,6-Bis(4-methoxyphenyl)-2-(methylthio)nicotinonitrile
CAS 312757-89-4C21H18N2O2S
![[3-(4-Methoxyphenyl)-5-phenyl-3,4-dihydropyrazol-2-yl]-thiophen-2-ylmethanone chemical structure, C21H18N2O2S, CAS 303787-34-0](/s/ADTLBIFDNHMORY-UHFFFAOYSA-N.svg)
[3-(4-Methoxyphenyl)-5-phenyl-3,4-dihydropyrazol-2-yl]-thiophen-2-ylmethanone
CAS 303787-34-0C21H18N2O2S
Methyl-phenyl-thiocarbamic acid O-(4-phenylcarbamoyl-phenyl) ester
CAS 331003-76-0C21H18N2O2S
![5-(3-Methoxyphenyl)-2-thiophen-2-yl-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine chemical structure, C21H18N2O2S, CAS 637321-22-3](/s/ZWRHJHMRFMXNLP-UHFFFAOYSA-N.svg)
5-(3-Methoxyphenyl)-2-thiophen-2-yl-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine
CAS 637321-22-3C21H18N2O2S
![3-Benzyl-2-isopropyl-3H-thiochromeno[2,3-d]pyrimidine-4,5-dione chemical structure, C21H18N2O2S, CAS 899399-81-6](/s/VVZIIAMVXNCEHF-UHFFFAOYSA-N.svg)
3-Benzyl-2-isopropyl-3H-thiochromeno[2,3-d]pyrimidine-4,5-dione
CAS 899399-81-6C21H18N2O2S
N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-3-methoxybenzamide
CAS 430453-78-4C21H18N2O2S
![5-(2-Methoxyphenyl)-2-(2-thienyl)-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazine chemical structure, C21H18N2O2S, CAS 847243-07-6](/s/OBQVWYLPVNCYNB-UHFFFAOYSA-N.svg)
5-(2-Methoxyphenyl)-2-(2-thienyl)-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazine
CAS 847243-07-6C21H18N2O2S
3,5-Diphenyl-1-(phenylsulfonyl)-4,5-dihydro-1H-pyrazole
CAS 70958-23-5C21H18N2O2S
![3-Benzyl-2-propyl-3H-thiochromeno[2,3-d]pyrimidine-4,5-dione chemical structure, C21H18N2O2S, CAS 896826-11-2](/s/FPQQKFBJNPELCC-UHFFFAOYSA-N.svg)
3-Benzyl-2-propyl-3H-thiochromeno[2,3-d]pyrimidine-4,5-dione
CAS 896826-11-2C21H18N2O2S
![4-[5-(4-Methoxyphenyl)-3-(2-thienyl)-4,5-dihydro-1H-pyrazol-1-yl]benzaldehyde chemical structure, C21H18N2O2S, CAS 6239-41-4](/s/MZDSEIRRZDSIKG-UHFFFAOYSA-N.svg)
4-[5-(4-Methoxyphenyl)-3-(2-thienyl)-4,5-dihydro-1H-pyrazol-1-yl]benzaldehyde
CAS 6239-41-4C21H18N2O2S
2-(4-Methoxyanilino)-1-phenothiazin-10-ylethanone
CAS 41648-69-5C21H18N2O2S
2-Oxo-4-(3-phenoxyphenyl)-6-prop-2-enylsulfanyl-3,4-dihydro-1H-pyridine-5-carbonitrile
CAS 332051-34-0C21H18N2O2S
![N-[(2-Methoxyphenyl)methyl]phenothiazine-10-carboxamide chemical structure, C21H18N2O2S, CAS 432536-15-7](/s/PDQHJNUYPJFGAW-UHFFFAOYSA-N.svg)
N-[(2-Methoxyphenyl)methyl]phenothiazine-10-carboxamide
CAS 432536-15-7C21H18N2O2S
![(E)-2-[4-(4-Ethoxyphenyl)-1,3-thiazol-2-yl]-3-(4-methoxyphenyl)prop-2-enenitrile chemical structure, C21H18N2O2S, CAS 313686-18-9](/s/WXKWZQRDHZNMDH-SFQUDFHCSA-N.svg)
(E)-2-[4-(4-Ethoxyphenyl)-1,3-thiazol-2-yl]-3-(4-methoxyphenyl)prop-2-enenitrile
CAS 313686-18-9C21H18N2O2S
N-(2-Ethoxyphenyl)-10H-phenothiazine-10-carboxamide
CAS 462621-42-7C21H18N2O2S
![(E)-N-(4-Methoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)-2-(naphthalen-1-yl)acetamide chemical structure, C21H18N2O2S, CAS 441291-37-8](/s/FPQAHFQCDAQEOI-UHFFFAOYSA-N.svg)
(E)-N-(4-Methoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)-2-(naphthalen-1-yl)acetamide
CAS 441291-37-8C21H18N2O2S
![N-[5-(4-Methylbenzyl)-1,3-thiazol-2-yl]-2H-chromene-3-carboxamide chemical structure, C21H18N2O2S, CAS 887346-53-4](/s/REEDPGPDQCDOCF-UHFFFAOYSA-N.svg)
N-[5-(4-Methylbenzyl)-1,3-thiazol-2-yl]-2H-chromene-3-carboxamide
CAS 887346-53-4C21H18N2O2S
![(5Z)-3-Methyl-5-[[1-[(4-methylphenyl)methyl]indol-3-yl]methylidene]-1,3-thiazolidine-2,4-dione chemical structure, C21H18N2O2S, CAS 366459-97-4](/s/DCUCRTAPOLXTHY-ODLFYWEKSA-N.svg)
(5Z)-3-Methyl-5-[[1-[(4-methylphenyl)methyl]indol-3-yl]methylidene]-1,3-thiazolidine-2,4-dione
CAS 366459-97-4C21H18N2O2S
N-(2-Benzoyl-1,2,3,4-tetrahydroisoquinolin-7-yl)thiophene-2-carboxamide
CAS 955745-37-6C21H18N2O2S
- 4-Acetyl-N-(5,7-dimethyl-3-prop-2-ynyl-1,3-benzothiazol-2-ylidene)benzamide868377-53-1C21H18N2O2S
- 2-(2-Benzothiazolyloxy)-1-(1,2,3,4-tetrahydro-9H-carbazol-9-yl)ethanone330180-00-2C21H18N2O2S
- 2-(1,3-Benzoxazol-2-ylsulfanyl)-1-(1,2,3,4-tetrahydro-9H-carbazol-9-yl)ethanone314039-45-7C21H18N2O2S
- 2-(1,3-Benzoxazol-2-ylsulfanyl)-N-(naphthalen-1-yl)butanamide425627-04-9C21H18N2O2S
- Ethyl 5-cyano-2,4-diphenyl-6-thioxo-1,4,5,6-tetrahydro-3-pyridinecarboxylate105199-50-6C21H18N2O2S
- 2-Benzamido-N-phenyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide301322-20-3C21H18N2O2S
- 2-(4-Methylphenyl)-3-[2-nitro-1-(thiophen-2-yl)ethyl]-1H-indole308294-77-1C21H18N2O2S
- 4,6-Dimethyl-2-[({2-oxo-2H,6H,7H,8H-cyclopenta[g]chromen-4-yl}methyl)sulfanyl]pyridine-3-carbonitrile872193-05-0C21H18N2O2S
- N-(3-Cyano-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-3-methoxynaphthalene-2-carboxamide305852-23-7C21H18N2O2S
- 2-[(4-Phenylbenzoyl)amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide313262-45-2C21H18N2O2S
- 4-Benzoyl-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)benzamide301676-54-0C21H18N2O2S
- Quinolinium, 2-((3-(carboxymethyl)-2(3H)-benzothiazolylidene)methyl)-1-ethyl-, inner salt53288-83-8C21H18N2O2S
- N-(4-Acetylphenyl)-4-(pyridin-2-ylsulfanylmethyl)benzamide701228-00-4C21H18N2O2S
- N-[(3-Methoxyphenyl)carbamothioyl]-4-phenylbenzamide6590-72-3C21H18N2O2S
- (E)-N-[Benzyl(phenyl)carbamothioyl]-3-(furan-2-yl)prop-2-enamide5150-87-8C21H18N2O2S
- N-[(4-Methoxyphenyl)methyl]phenothiazine-10-carboxamide432541-24-7C21H18N2O2S
- N-(11-Acetyl-5,6-dihydrobenzo[b][1]benzazepin-2-yl)thiophene-2-carboxamide361463-98-1C21H18N2O2S
- Thiazole, 4,5-bis(4-methoxyphenyl)-2-(1H-pyrrol-2-yl)-101001-71-2C21H18N2O2S
- N-{3-[2-(Furan-2-yl)-2,3-dihydro-1,5-benzothiazepin-4-yl]phenyl}acetamide514186-08-4C21H18N2O2S
- (E)-3-(2H-Chromen-3-yl)-N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acrylamide887347-48-0C21H18N2O2S
- 3-Methyl-N-[5-(3-methylbenzyl)-1,3-thiazol-2-yl]-1-benzofuran-2-carboxamide923164-89-0C21H18N2O2S
- 7-(2-Methylphenyl)-3-(2-phenoxyethyl)thieno[3,2-d]pyrimidin-4(3H)-one1207058-37-4C21H18N2O2S
- N-[(4-Phenoxyphenyl)carbamothioyl]-2-phenylacetamide642969-59-3C21H18N2O2S
- N-(4,6-Dimethyl-1,3-benzothiazol-2-yl)-3-methoxynaphthalene-2-carboxamide301235-69-8C21H18N2O2S
- 2-[(6-Ethoxy-1H-benzimidazol-2-yl)sulfanyl]-1-naphthalen-2-ylethanone694479-57-7C21H18N2O2S
- N-(Furan-2-ylmethyl)-6-methyl-2-(5-methylthiophen-2-yl)quinoline-4-carboxamide588697-21-6C21H18N2O2S
- 4-Methyl-2-[7-(thiophen-3-yl)-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraen-4-yl]phenol896619-33-3C21H18N2O2S
- (Z)-2-(3,4-Dimethoxyphenyl)-3-[2-(methylsulfanyl)-3-quinolinyl]-2-propenenitrile478065-22-4C21H18N2O2S
- (E)-N-(3,6-Dimethylbenzo[d]thiazol-2(3H)-ylidene)-3-methoxy-2-naphthamide325980-08-3C21H18N2O2S
- 7-Methyl-5-phenyl-4-(thiophene-2-carbonyl)-4,5-dihydro-1H-benzo[e][1,4]diazepin-2(3H)-one5628-01-3C21H18N2O2S
- 4-(3-Amino-4,6-dimethylthieno[2,3-b]pyridin-2-yl)-7,8-dihydrocyclopenta[g]chromen-2(6H)-one929340-13-6C21H18N2O2S
- 3-(3-Methoxybenzyl)-7-(3-methylphenyl)thieno[3,2-d]pyrimidin-4(3H)-one1206993-09-0C21H18N2O2S
- 4-Methyl-2-[7-(thiophen-2-yl)-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraen-4-yl]phenol896619-31-1C21H18N2O2S
- 5-(4-Methoxyphenyl)-3-[(2-methylphenyl)methyl]thieno[2,3-d]pyrimidin-4-one457918-64-8C21H18N2O2S
- N-[(2-Methoxyphenyl)carbamothioyl]-4-phenylbenzamide429641-56-5C21H18N2O2S
- N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-4-methoxybenzamide333739-75-6C21H18N2O2S
- N-(3-Cyano-5-methyl-4-phenylthiophen-2-yl)-2-(3-methylphenoxy)acetamide445022-30-0C21H18N2O2S
- N-[(3-Phenoxybenzyl)carbamothioyl]benzamide373373-76-3C21H18N2O2S
- 1-(3-Acetylphenyl)-3-(2-phenylsulfanylphenyl)urea708223-46-5C21H18N2O2S
- 4-Acetamido-N-(2-phenylsulfanylphenyl)benzamide109980-85-0C21H18N2O2S
- (Z)-N-(3-(2-Methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)-1-naphthamide959747-15-0C21H18N2O2S
- 4-Isopropoxy-N-(naphtho[2,1-d]thiazol-2-yl)benzamide684232-40-4C21H18N2O2S
- N-(1-Ethyl-2-oxo-1,2-dihydrobenzo[cd]indol-6-yl)-2-(phenylthio)acetamide895483-73-5C21H18N2O2S
- N'-[(1E)-(4-Methoxyphenyl)methylidene]-4H,5H-naphtho[1,2-b]thiophene-2-carbohydrazide278782-23-3C21H18N2O2S
- 3-(3-Methoxybenzyl)-7-(4-methylphenyl)thieno[3,2-d]pyrimidin-4(3H)-one1207045-54-2C21H18N2O2S
- 7-(4-Methylphenyl)-3-(2-phenoxyethyl)thieno[3,2-d]pyrimidin-4(3H)-one1207041-91-5C21H18N2O2S
- 3-(3-Methoxybenzyl)-7-(2-methylphenyl)thieno[3,2-d]pyrimidin-4(3H)-one1207006-12-9C21H18N2O2S
- 1-(3-Methylbenzyl)-3-(2-methylphenyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione1326848-19-4C21H18N2O2S
- 4-(Benzyloxy)-N-(thiophen-2-ylmethyl)-1H-indole-2-carboxamide1448133-71-8C21H18N2O2S
- 6-Methoxy-N-(2-(thiophen-3-yl)benzyl)-1H-indole-2-carboxamide1797983-86-8C21H18N2O2S
- N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-2-methoxybenzamide333741-30-3C21H18N2O2S
- N-(4-Ethoxybenzo[d]thiazol-2-yl)-2-(naphthalen-1-yl)acetamide324758-43-2C21H18N2O2S
- (E)-N-(6-Ethoxy-3-methylbenzo[d]thiazol-2(3H)-ylidene)-1-naphthamide392249-33-1C21H18N2O2S
- 6-(Furan-2-yl)-9-thiophen-2-yl-5,6,8,9,10,11-hexahydrobenzo[b][1,4]benzodiazepin-7-one879047-39-9C21H18N2O2S
- (Z)-2-(4-(3,4-Dimethoxyphenyl)thiazol-2-yl)-3-(p-tolyl)acrylonitrile476668-88-9C21H18N2O2S
- (2Z)-3-(4-Ethoxyphenyl)-2-[4-(3-methoxyphenyl)-1,3-thiazol-2-yl]prop-2-enenitrile476669-27-9C21H18N2O2S
- N-[1-(Thiophene-2-carbonyl)-1,2,3,4-tetrahydroquinolin-7-yl]benzamide946218-69-5C21H18N2O2S
- 1-Benzyl-5,6-dimethyl-3-phenylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione892274-44-1C21H18N2O2S
- 4-(4-Methoxyphenyl)-7-(thiophen-3-yl)-8-oxa-5,6-diazatricyclo[7.4.0.0^{2,6}]trideca-1(9),4,10,12-tetraene941895-86-9C21H18N2O2S
- 1-(2,5-Dimethylbenzyl)-3-phenylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione912884-11-8C21H18N2O2S
- 7-(4-Methoxyphenyl)-3-(2-methylbenzyl)thieno[3,2-d]pyrimidin-4(3H)-one1105238-02-5C21H18N2O2S
- 7-(4-Methoxyphenyl)-3-(4-methylbenzyl)thieno[3,2-d]pyrimidin-4(3H)-one1105238-10-5C21H18N2O2S
- Ethyl 2-[3-(1H-indol-2-yl)phenyl]-4-methyl-1,3-thiazole-5-carboxylate1858250-58-4C21H18N2O2S
- (E)-5-(Pyridin-4-yl)-1-(styrylsulfonyl)indoline2035001-70-6C21H18N2O2S
- 4-Methyl-N-[(4-phenoxyphenyl)carbamothioyl]benzamide642945-96-8C21H18N2O2S
- N-[(2-Hydroxy-4-methylphenyl)carbamothioyl]-4-phenylbenzamide364384-00-9C21H18N2O2S
- N-[(2-Hydroxy-5-methylphenyl)carbamothioyl]-4-phenylbenzamide364742-78-9C21H18N2O2S
- N-(3-Ethylbenzo[g][1,3]benzothiazol-2-ylidene)-3-methoxybenzamide865545-42-2C21H18N2O2S
- (E)-N-(3-Ethylnaphtho[2,1-d]thiazol-2(3H)-ylidene)-4-methoxybenzamide865545-43-3C21H18N2O2S
- 7-(3-Methoxyphenyl)-7,10-dihydro-5H-benzo[h]thiazolo[2,3-b]quinazolin-9(6H)-one698990-09-9C21H18N2O2S
- N-(2-((2-Cyanoethyl)thio)phenyl)-3-methoxy-2-naphthamide477497-70-4C21H18N2O2S
- (E)-4-Ethoxy-N-(1-methylnaphtho[1,2-d]thiazol-2(1H)-ylidene)benzamide477499-92-6C21H18N2O2S
- N'-(9H-Fluoren-9-ylmethylene)-4-methylbenzenesulfonohydrazide35432-46-3C21H18N2O2S
- (Z)-2-(4-(3,4-Dimethoxyphenyl)thiazol-2-yl)-3-(o-tolyl)acrylonitrile476668-61-8C21H18N2O2S
- 1-[5-Benzoyl-3-(pyridin-4-yl)thiophen-2-yl]piperidin-4-one886462-68-6C21H18N2O2S
- N-(4-Ethoxybenzo[d]thiazol-2-yl)-2-(naphthalen-2-yl)acetamide955827-77-7C21H18N2O2S
Frequently asked questions
What is the molar mass of C21H18N2O2S?
The molar mass of C21H18N2O2S is 362.45 g/mol, calculated from standard atomic weights for 21 carbon atoms, 18 hydrogen atoms, 2 nitrogen atoms, 2 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 362.1089 Da.
How many compounds have the formula C21H18N2O2S?
CompoundList lists 132 compounds with the molecular formula C21H18N2O2S, including 2-(4-Methoxyphenyl)-5-(2-thienyl)-1,10B-dihydropyrazolo(1,5-C)(1,3)benzoxazine, 6-Methyl-3-(2-nitro-1-(2-thienyl)ethyl)-2-phenyl-1H-indole, N-(1,2-Dihydroacenaphthylen-5-ylcarbamothioyl)-2-phenoxyacetamide. 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 C21H18N2O2S?
C21H18N2O2S 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.