Molecular formula
C18H21N3OS
134 compounds have this formula on CompoundList.
- Molar mass
- 327.45g/mol
- Monoisotopic mass
- 327.1405Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 10
The formula C18H21N3OS describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 3 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 × 1866.03%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 216.46%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 312.83%14.007 × 3 = 42.021 g/mol
- O Oxygen × 14.89%15.999 × 1 = 15.999 g/mol
- S Sulfur × 19.79%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H21N3OS
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 134 compounds
1-(3,7-Bis(dimethylamino)-10H-phenothiazin-10-yl)ethanone
CAS 3763-06-2C18H21N3OS
4-(4-Methoxyphenyl)-N-phenylpiperazine-1-carbothioamide
CAS 459796-14-6C18H21N3OS
1-(4-Anilinophenyl)-3-(oxolan-2-ylmethyl)thiourea
CAS 516457-33-3C18H21N3OS
N-(4-Anilinophenyl)-4-hydroxypiperidine-1-carbothioamide
CAS 516458-78-9C18H21N3OS
2-(2-Cyclopropylquinazolin-4-yl)sulfanyl-1-piperidin-1-ylethanone
CAS 570395-82-3C18H21N3OS
N,N-Dimethyl-2-(2-phenyl-5,6,7,8-tetrahydro-quinazolin-4-ylsulfanyl)-acetamide
CAS 780777-52-8C18H21N3OS
4-(2-Methoxyphenyl)-N-phenylpiperazine-1-carbothioamide
CAS 332053-03-9C18H21N3OS
1-(4-Benzylpiperidin-1-yl)-2-(pyrimidin-2-ylthio)ethanone
CAS 403833-92-1C18H21N3OS
1-(6-Methyl-1-phenyl-4-piperidin-1-yl-2-sulfanylidenepyrimidin-5-yl)ethanone
CAS 351437-04-2C18H21N3OS
![N-[3-(Dimethylamino)propyl]phenothiazine-10-carboxamide chemical structure, C18H21N3OS, CAS 107778-37-0](/s/RIQIQGRYHDMRHF-UHFFFAOYSA-N.svg)
N-[3-(Dimethylamino)propyl]phenothiazine-10-carboxamide
CAS 107778-37-0C18H21N3OS
4-Methyl-N-(4-phenoxyphenyl)piperazine-1-carbothioamide
CAS 36590-22-4C18H21N3OS
![1-[3-(Pyridin-2-ylmethyl)-3,4,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-1(2H)-yl]ethanone chemical structure, C18H21N3OS, CAS 618402-95-2](/s/ASIHEQWQLSKJFD-UHFFFAOYSA-N.svg)
1-[3-(Pyridin-2-ylmethyl)-3,4,5,6,7,8-hexahydro[1]benzothieno[2,3-d]pyrimidin-1(2H)-yl]ethanone
CAS 618402-95-2C18H21N3OS
N-(4-Methoxyphenyl)-2-(pyridin-3-yl)piperidine-1-carbothioamide
CAS 399003-11-3C18H21N3OS
1-(2-Methoxyphenyl)-5-(2-phenylethyl)-1,3,5-triazinane-2-thione
CAS 679798-82-4C18H21N3OS
1-(3-Methoxyphenyl)-5-(2-phenylethyl)-1,3,5-triazinane-2-thione
CAS 679825-92-4C18H21N3OS
![[4-[(4-Methylsulfanylphenyl)methyl]piperazin-1-yl]-pyridin-4-ylmethanone chemical structure, C18H21N3OS, CAS 489443-41-6](/s/OKIYWMLNHNVFGG-UHFFFAOYSA-N.svg)
[4-[(4-Methylsulfanylphenyl)methyl]piperazin-1-yl]-pyridin-4-ylmethanone
CAS 489443-41-6C18H21N3OS
1-(4-Methylpiperidin-1-yl)-2-(6-phenylpyridazin-3-yl)sulfanylethanone
CAS 893990-06-2C18H21N3OS
N-Cyclohexyl-2-(6-phenylpyridazin-3-yl)sulfanylacetamide
CAS 893988-29-9C18H21N3OS
N-Cyclopentyl-2-((6-(p-tolyl)pyridazin-3-yl)thio)acetamide
CAS 893975-15-0C18H21N3OS
Tenovin-3
CAS 1011301-27-1C18H21N3OS
![(E)-N-(2-tert-Butyl-4,6-dihydrothieno[3,4-c]pyrazol-3-yl)-3-phenylprop-2-enamide chemical structure, C18H21N3OS, CAS 392252-94-7](/s/RPJMLRBTZUACAU-MDZDMXLPSA-N.svg)
(E)-N-(2-tert-Butyl-4,6-dihydrothieno[3,4-c]pyrazol-3-yl)-3-phenylprop-2-enamide
CAS 392252-94-7C18H21N3OS
5-Benzyl-1-(2-ethoxyphenyl)-1,3,5-triazinane-2-thione
CAS 685130-53-4C18H21N3OS
![2-(4-Ethylphenyl)-7-methyl-1,2,5,6,7,8-hexahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4-ol chemical structure, C18H21N3OS, CAS 420842-33-7](/s/GJYQSNPERFPGPI-UHFFFAOYSA-N.svg)
2-(4-Ethylphenyl)-7-methyl-1,2,5,6,7,8-hexahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4-ol
CAS 420842-33-7C18H21N3OS
![N-[2-(2-Methylphenyl)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]cyclopentanecarboxamide chemical structure, C18H21N3OS, CAS 450340-18-8](/s/GCLNNTQLQNLQFW-UHFFFAOYSA-N.svg)
N-[2-(2-Methylphenyl)-4,6-dihydrothieno[3,4-c]pyrazol-3-yl]cyclopentanecarboxamide
CAS 450340-18-8C18H21N3OS
- 2-(4-(tert-Butyl)benzoyl)-N-phenylhydrazinecarbothioamide261705-15-1C18H21N3OS
- N-(2-Cyano-3-methylbutan-2-yl)-2-((4-methylquinolin-2-yl)thio)acetamide785707-15-5C18H21N3OS
- (Z)-1-(4-(5-Ethyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)-3-phenylprop-2-en-1-one1105230-11-2C18H21N3OS
- 1-(4-(5-Cyclopropyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)-2-phenylethanone1105230-82-7C18H21N3OS
- Anticancer agent 4153236-38-5C18H21N3OS
- 6-(1-Adamantyl)-3-aminothieno[2,3-b]pyridine-2-carboxamide105648-36-0C18H21N3OS
- {[2-(5-Methylfuran-2-yl)-1,3-thiazol-4-yl]methyl}(propan-2-yl)[(pyridin-2-yl)methyl]amine1211713-23-3C18H21N3OS
- N-Nitroso-vortioxetine2925447-38-5C18H21N3OS
- 1-(1-Benzyl-6-methyl-4-pyrrolidin-1-yl-2-sulfanylidenepyrimidin-5-yl)ethanone351437-11-1C18H21N3OS
- N-(4-Methoxyphenyl)-4-phenylpiperazine-1-carbothioamide2349-65-7C18H21N3OS
- N-[[4-(Dimethylamino)phenyl]carbamothioyl]-3,4-dimethylbenzamide335213-42-8C18H21N3OS
- [4-[(4-Methylsulfanylphenyl)methyl]piperazin-1-yl]-pyridin-3-ylmethanone506432-51-5C18H21N3OS
- Phenothiazine, 10-(N-(2-(dimethylamino)ethyl)glycyl)-93995-89-2C18H21N3OS
- 2-(1-Adamantyl)-N-(2,1,3-benzothiadiazol-4-yl)acetamide728030-79-3C18H21N3OS
- 2-[(1-Methyl-1H-imidazol-2-yl)sulfanyl]-1-(2,2,4-trimethylquinolin-1(2H)-yl)ethanone925010-48-6C18H21N3OS
- 5H-Dibenzo(b,e)(1,4)diazepin-11-one, 10,11-dihydro-10-(2-(dimethylamino)ethyl)-7-methylthio-1163-28-6C18H21N3OS
- Morpholine, 4-((1,4,5,6-tetrahydro-1-phenyl-3-cyclopentapyrazolyl)thioacetyl)-21484-46-8C18H21N3OS
- 3-{[4-(tert-Butyl)phenyl]methylthio}-5-(2-furyl)-4-methyl-1,2,4-triazole577985-89-8C18H21N3OS
- N-(2-Methylphenyl)-2-[(4-methyl-5,6,7,8-tetrahydroquinazolin-2-yl)sulfanyl]acetamide701288-81-5C18H21N3OS
- 1-(Azepan-1-yl)-2-(6-phenylpyridazin-3-yl)sulfanylethanone893990-12-0C18H21N3OS
- 1-(Piperidin-1-yl)-2-((6-(p-tolyl)pyridazin-3-yl)thio)ethanone893976-41-5C18H21N3OS
- 2-[6-(4-Ethylphenyl)pyridazin-3-yl]sulfanyl-1-pyrrolidin-1-ylethanone893982-41-7C18H21N3OS
- N-(4-(Benzyl(methyl)amino)but-2-yn-1-yl)-2,4-dimethylthiazole-5-carboxamide1396759-83-3C18H21N3OS
- 5-Amino-1-(3-methylbutyl)-4-(4-phenyl-1,3-thiazol-2-yl)-1,2-dihydro-3H-pyrrol-3-one929810-84-4C18H21N3OS
- N-(3-Methoxyphenyl)-4-phenylpiperazine-1-carbothioamide431890-62-9C18H21N3OS
- N-(2-Methoxyphenyl)-4-phenylpiperazine-1-carbothioamide431057-08-8C18H21N3OS
- (E)-3-(3,5-Dimethyl-1-phenylpyrazol-4-yl)-1-thiomorpholin-4-ylprop-2-en-1-one514854-58-1C18H21N3OS
- 10H-Pyrido(3,2-b)(1,4)benzothiazine, 10-(3-morpholinopropyl)-67465-78-5C18H21N3OS
- 1-(Piperidin-1-yl)-2-((6-(o-tolyl)pyridazin-3-yl)thio)ethanone941973-81-5C18H21N3OS
- 1-(Pyridin-2-yl)-4-(4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl)piperazine876699-92-2C18H21N3OS
- Imidazo(1,2-a)pyridine-3-acetamide, 2-(5-ethyl-2-thienyl)-N,N,6-trimethyl-88570-86-9C18H21N3OS
- 2-((1-(2-(Azepan-1-yl)-2-oxoethyl)-1H-indol-3-yl)thio)acetonitrile895807-62-2C18H21N3OS
- 2-[(3-Cyano-6,7-dimethyl-2-quinolinyl)thio]-N-(1-methylpropyl)acetamide1105189-46-5C18H21N3OS
- (4-((4-Cyclopropylthiazol-2-yl)methyl)piperazin-1-yl)(phenyl)methanone1170019-68-7C18H21N3OS
- 2-(4-Butoxyphenyl)-4-(ethylsulfanyl)pyrazolo[1,5-a]pyrazine1207013-46-4C18H21N3OS
- (E)-N-((1-(Pyridin-2-yl)piperidin-4-yl)methyl)-3-(thiophen-2-yl)acrylamide1235703-50-0C18H21N3OS
- N-(4,5-Dimethyl-1,3-thiazol-2-yl)-2-[1-(propan-2-yl)-1H-indol-3-yl]acetamide1374530-13-8C18H21N3OS
- 1-(4-(Benzyl(methyl)amino)but-2-yn-1-yl)-3-(thiophen-2-ylmethyl)urea1396806-80-6C18H21N3OS
- 5-Amino-4-(4,5-dimethyl-1,3-thiazol-2-yl)-1-(4-isopropylphenyl)-1,2-dihydro-3H-pyrrol-3-one951934-05-7C18H21N3OS
- 5-Amino-4-(4,5-dimethyl-1,3-thiazol-2-yl)-1-(3-phenylpropyl)-1,2-dihydro-3H-pyrrol-3-one951940-87-7C18H21N3OS
- 5-Amino-4-(4,5-dimethyl-1,3-thiazol-2-yl)-1-(2-isopropylphenyl)-1,2-dihydro-3H-pyrrol-3-one951993-04-7C18H21N3OS
- 2-(3,4-Dihydroisoquinolin-2(1H)-yl)-N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)acetamide524057-90-7C18H21N3OS
- N-(3-(2,3-Dihydroimidazo[2,1-b]thiazol-6-yl)phenyl)cyclohexanecarboxamide893975-48-9C18H21N3OS
- Imidazo(1,2-a)pyridine-3-propanamide, 2-(5-methyl-2-thienyl)-N,N,6-trimethyl-88965-11-1C18H21N3OS
- N-(2,5-Dimethylphenyl)-2-(3-phenylpropanoyl)hydrazinecarbothioamide667443-04-1C18H21N3OS
- Urea, N-(5,11-dihydro(1)benzothiepino(3,4-b)pyridin-5-yl)-N,N'-diethyl-96020-51-8C18H21N3OS
- N-[3-Methyl-4-(pyrrolidin-1-yl)phenyl]-2-(methylsulfanyl)pyridine-3-carboxamide1147360-44-8C18H21N3OS
- (3-(5-Benzyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)(cyclopropyl)methanone1203328-20-4C18H21N3OS
- [2-(Cyclopropylamino)-1,3-thiazol-4-yl](4-phenylpiperidino)methanone1282113-30-7C18H21N3OS
- 4-(1-Isopropyl-1H-indol-3-yl)-N-(thiazol-2-yl)butanamide1374543-36-8C18H21N3OS
- N-[2-(1H-Indol-3-yl)ethyl]-5-isopropyl-2-methyl-1,3-thiazole-4-carboxamide1374516-78-5C18H21N3OS
- N-(2-(Dimethylamino)-2-(1-methyl-1H-indol-3-yl)ethyl)thiophene-3-carboxamide1396800-75-1C18H21N3OS
- N-Phenyl-4-((pyridin-2-ylthio)methyl)piperidine-1-carboxamide1421456-03-2C18H21N3OS
- N-(1-Cyanocyclopentyl)-2,5-dimethyl-1-[(thiophen-2-yl)methyl]-1H-pyrrole-3-carboxamide1424396-99-5C18H21N3OS
- N-((1-(Thiazol-2-yl)piperidin-3-yl)methyl)cinnamamide1706488-46-1C18H21N3OS
- (E)-N-((1-(Pyridin-4-yl)piperidin-4-yl)methyl)-3-(thiophen-2-yl)acrylamide2035036-02-1C18H21N3OS
- 3-(Phenylsulfanyl)-1-{7,8,11-triazatricyclo[6.4.0.0^{2,6}]dodeca-1,6-dien-11-yl}propan-1-one2034509-37-8C18H21N3OS
- (3-(3,4-Dihydroisoquinolin-2(1H)-yl)azetidin-1-yl)(2,4-dimethylthiazol-5-yl)methanone2034290-89-4C18H21N3OS
- 3-(3,4-Dihydroisoquinolin-2(1H)-yl)-N-(thiophen-2-ylmethyl)azetidine-1-carboxamide2034357-69-0C18H21N3OS
- 2-{[1-(1-Benzothiophen-2-yl)ethyl]amino}-N-(1-cyano-1-cyclopropylethyl)acetamide2094504-54-6C18H21N3OS
- 5-Amino-1-(1-methyl-3-phenylpropyl)-4-(4-methyl-1,3-thiazol-2-yl)-1,2-dihydro-3H-pyrrol-3-one1010904-22-9C18H21N3OS
- 3-(N-Methylanilino)thio-1-pyrrolidinecarboxanilide20984-73-0C18H21N3OS
- N-[[4-(Diethylamino)phenyl]carbamothioyl]benzamide42266-67-1C18H21N3OS
- Pyrazino(1,2-a)(1,4)benzodiazepine, 1,2,3,4,4a,5-hexahydro-10-methoxy-3-methyl-7-(2-thienyl)-87566-80-1C18H21N3OS
- 5-(2-Methoxyethyl)-1,3-diphenyl-1,3,5-triazinane-2-thione879615-35-7C18H21N3OS
- 2-Ethyl-N-(3-(3-methylimidazo[2,1-b]thiazol-6-yl)phenyl)butanamide893983-60-3C18H21N3OS
- 2-Ethyl-N-(4-(3-methylimidazo[2,1-b]thiazol-6-yl)phenyl)butanamide893989-29-2C18H21N3OS
- 2-(Methylsulfanyl)-N-{[4-(pyrrolidin-1-yl)phenyl]methyl}pyridine-3-carboxamide1147742-26-4C18H21N3OS
- (4-(5-Cyclopropyl-1,3,4-thiadiazol-2-yl)piperidin-1-yl)(p-tolyl)methanone1203184-12-6C18H21N3OS
- 2-((1-Allyl-5-phenyl-1H-imidazol-2-yl)thio)-1-(pyrrolidin-1-yl)ethanone1207013-39-5C18H21N3OS
- (E)-N-((1-(Pyridin-2-yl)piperidin-4-yl)methyl)-3-(thiophen-3-yl)acrylamide1331594-29-6C18H21N3OS
- N-{2-[(Butan-2-yl)oxy]phenyl}-5-ethylthieno[2,3-d]pyrimidin-4-amine917907-87-0C18H21N3OS
- 1-(7,8-Dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)-2-(4-(isopropylthio)phenyl)ethanone1797183-73-3C18H21N3OS
- N-(4-Cyanothian-4-yl)-3-(1-methyl-1H-indol-3-yl)propanamide1797649-72-9C18H21N3OS
- 3-(Phenylthio)-N-(1-(pyridin-2-yl)pyrrolidin-3-yl)propanamide1798542-37-6C18H21N3OS
- N-({[2,3'-Bipyridine]-3-yl}methyl)-2-(cyclopentylsulfanyl)acetamide1903739-34-3C18H21N3OS
Frequently asked questions
What is the molar mass of C18H21N3OS?
The molar mass of C18H21N3OS is 327.45 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 327.1405 Da.
How many compounds have the formula C18H21N3OS?
CompoundList lists 134 compounds with the molecular formula C18H21N3OS, including 1-(3,7-Bis(dimethylamino)-10H-phenothiazin-10-yl)ethanone, 4-(4-Methoxyphenyl)-N-phenylpiperazine-1-carbothioamide, 1-(4-Anilinophenyl)-3-(oxolan-2-ylmethyl)thiourea. 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 C18H21N3OS?
C18H21N3OS 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.