Molecular formula
C18H19N5OS
181 compounds have this formula on CompoundList.
- Molar mass
- 353.44g/mol
- Monoisotopic mass
- 353.1310Da
- Atoms
- 44
- Elements
- 5
- Rings plus double bonds
- 12
The formula C18H19N5OS describes a molecule made of 18 carbon atoms, 19 hydrogen atoms, 5 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 × 1861.17%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 195.42%1.008 × 19 = 19.152 g/mol
- N Nitrogen × 519.82%14.007 × 5 = 70.035 g/mol
- O Oxygen × 14.53%15.999 × 1 = 15.999 g/mol
- S Sulfur × 19.07%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H19N5OS
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 181 compounds
2-((4-ET-5-(2-Pyridinyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-methylphenyl)acetamide
CAS 618414-89-4C18H19N5OS
![2-[[4-(3-Bicyclo[2.2.1]heptanyl)-5-sulfanylidene-1H-1,2,4-triazol-3-yl]methyl]phthalazin-1-one chemical structure, C18H19N5OS, CAS 1005272-15-0](/s/BFJFTNGXOFLVKV-UHFFFAOYSA-N.svg)
2-[[4-(3-Bicyclo[2.2.1]heptanyl)-5-sulfanylidene-1H-1,2,4-triazol-3-yl]methyl]phthalazin-1-one
CAS 1005272-15-0C18H19N5OS
![2-[(1-Phenyl-1H-1,2,3,4-tetrazol-5-yl)sulfanyl]-N-[4-(propan-2-yl)phenyl]acetamide chemical structure, C18H19N5OS, CAS 311315-77-2](/s/PPXXBPIBFJEGTL-UHFFFAOYSA-N.svg)
2-[(1-Phenyl-1H-1,2,3,4-tetrazol-5-yl)sulfanyl]-N-[4-(propan-2-yl)phenyl]acetamide
CAS 311315-77-2C18H19N5OS
2-((4-ET-5-(3-Pyridinyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-methylphenyl)acetamide
CAS 333418-84-1C18H19N5OS
N-Benzothiazol-2-yl-2-(4-pyridin-2-yl-piperazin-1-yl)-acetamide
CAS 879064-67-2C18H19N5OS
2-((4-ET-5-(3-Pyridinyl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-methylphenyl)acetamide
CAS 333331-30-9C18H19N5OS
![4-{[4-(Dimethylamino)benzylidene]amino}-5-(phenoxymethyl)-4H-1,2,4-triazole-3-thiol chemical structure, C18H19N5OS, CAS 488860-05-5](/s/YBNHLMOGQQZCNK-XDHOZWIPSA-N.svg)
4-{[4-(Dimethylamino)benzylidene]amino}-5-(phenoxymethyl)-4H-1,2,4-triazole-3-thiol
CAS 488860-05-5C18H19N5OS
![6-[(2-Oxo-2-piperidin-1-ylethyl)thio]-3-phenyl[1,2,4]triazolo[4,3-b]pyridazine chemical structure, C18H19N5OS, CAS 852372-23-7](/s/KVQQDVGGMIMKJP-UHFFFAOYSA-N.svg)
6-[(2-Oxo-2-piperidin-1-ylethyl)thio]-3-phenyl[1,2,4]triazolo[4,3-b]pyridazine
CAS 852372-23-7C18H19N5OS
2-((4-ET-5-(4-Pyridinyl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-methylphenyl)acetamide
CAS 482639-67-8C18H19N5OS
2-((4-Amino-5-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(2,5-dimethylphenyl)acetamide
CAS 540498-76-8C18H19N5OS
![N-Cyclopentyl-2-({1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}sulfanyl)acetamide chemical structure, C18H19N5OS, CAS 483984-49-2](/s/KPGYPORAQQOQBR-UHFFFAOYSA-N.svg)
N-Cyclopentyl-2-({1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl}sulfanyl)acetamide
CAS 483984-49-2C18H19N5OS
2-((4-ET-5-(4-Pyridinyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-methylphenyl)acetamide
CAS 482639-68-9C18H19N5OS
![Benzothiazol-2-yl-[5-(4-methoxy-benzyl)-1,4,5,6-tetrahydro-[1,3,5]triazin-2-yl]-amine chemical structure, C18H19N5OS, CAS 810634-05-0](/s/GZNBOCCVKCPZCY-UHFFFAOYSA-N.svg)
Benzothiazol-2-yl-[5-(4-methoxy-benzyl)-1,4,5,6-tetrahydro-[1,3,5]triazin-2-yl]-amine
CAS 810634-05-0C18H19N5OS
2-((4-Amino-5-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(3,5-dimethylphenyl)acetamide
CAS 769926-87-6C18H19N5OS
![(5Z)-2-(4-Methylpiperazin-1-yl)-5-[(5-phenyl-1H-pyrazol-4-yl)methylidene]-1,3-thiazol-4-one chemical structure, C18H19N5OS, CAS 1010867-16-9](/s/HRKSMLLVHANNDW-PTNGSMBKSA-N.svg)
(5Z)-2-(4-Methylpiperazin-1-yl)-5-[(5-phenyl-1H-pyrazol-4-yl)methylidene]-1,3-thiazol-4-one
CAS 1010867-16-9C18H19N5OS
![N-(3,4-Dimethyl-phenyl)-2-(4-methyl-5-pyridin-4-yl-4H-[1,2,4]triazol-3-ylsulfanyl)-acetamide chemical structure, C18H19N5OS, CAS 338425-34-6](/s/QIGHPDZFUPMPPA-UHFFFAOYSA-N.svg)
N-(3,4-Dimethyl-phenyl)-2-(4-methyl-5-pyridin-4-yl-4H-[1,2,4]triazol-3-ylsulfanyl)-acetamide
CAS 338425-34-6C18H19N5OS
4-((4-(Dimethylamino)benzylidene)amino)-5-(2-meo-PH)-4H-1,2,4-triazole-3-thiol
CAS 478256-88-1C18H19N5OS
2-((4-Amino-5-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(2,3-dimethylphenyl)acetamide
CAS 842962-14-5C18H19N5OS
![2-Methylbenzaldehyde [3-(4-ethoxyphenyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl]hydrazone chemical structure, C18H19N5OS, CAS 624724-36-3](/s/QOGKDCVEUOZSEX-XDHOZWIPSA-N.svg)
2-Methylbenzaldehyde [3-(4-ethoxyphenyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl]hydrazone
CAS 624724-36-3C18H19N5OS
![4-Methylbenzaldehyde [3-(4-ethoxyphenyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl]hydrazone chemical structure, C18H19N5OS, CAS 624724-99-8](/s/ZQZMVKMHLRLOFB-XDHOZWIPSA-N.svg)
4-Methylbenzaldehyde [3-(4-ethoxyphenyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl]hydrazone
CAS 624724-99-8C18H19N5OS
![3-Methylbenzaldehyde [3-(4-ethoxyphenyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl]hydrazone chemical structure, C18H19N5OS, CAS 624724-40-9](/s/QDQVMKKWIZFWII-XDHOZWIPSA-N.svg)
3-Methylbenzaldehyde [3-(4-ethoxyphenyl)-5-sulfanyl-4H-1,2,4-triazol-4-yl]hydrazone
CAS 624724-40-9C18H19N5OS
![N-(Cyanomethyl)-2-[(4,5-dicyclopropyl-1,2,4-triazol-3-yl)sulfanyl]-N-phenylacetamide chemical structure, C18H19N5OS, CAS 878240-87-0](/s/DMMBWIKJHVSLMP-UHFFFAOYSA-N.svg)
N-(Cyanomethyl)-2-[(4,5-dicyclopropyl-1,2,4-triazol-3-yl)sulfanyl]-N-phenylacetamide
CAS 878240-87-0C18H19N5OS
![2-((1H-Benzo[d]imidazol-2-yl)thio)-1-(4-(pyridin-2-yl)piperazin-1-yl)ethanone chemical structure, C18H19N5OS, CAS 924872-33-3](/s/ILXKODNPKNUFAN-UHFFFAOYSA-N.svg)
2-((1H-Benzo[d]imidazol-2-yl)thio)-1-(4-(pyridin-2-yl)piperazin-1-yl)ethanone
CAS 924872-33-3C18H19N5OS
![2-[(5-Methyl-[1,2,4]triazino[5,6-b]indol-3-yl)sulfanyl]-N,N-bis(prop-2-enyl)acetamide chemical structure, C18H19N5OS, CAS 710983-57-6](/s/WNLKPRSOHOQJGW-UHFFFAOYSA-N.svg)
2-[(5-Methyl-[1,2,4]triazino[5,6-b]indol-3-yl)sulfanyl]-N,N-bis(prop-2-enyl)acetamide
CAS 710983-57-6C18H19N5OS
- 2-(Morpholin-4-ylmethyl)-4-phenyl-5-pyridin-4-yl-1,2,4-triazole-3-thione146902-13-8C18H19N5OS
- 2-(2-(1H-Pyrrol-1-yl)thiazol-4-yl)-1-(4-(pyridin-2-yl)piperazin-1-yl)ethanone1092331-03-7C18H19N5OS
- N-(2-Isopropylphenyl)-2-(2-(pyrimidin-2-ylamino)thiazol-4-yl)acetamide1226433-56-2C18H19N5OS
- 7-(4-Ethoxyphenyl)-3-((pyridin-3-ylmethyl)thio)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazole921860-34-6C18H19N5OS
- 2-(Ethylthio)-N-((1-(p-tolyl)-1H-tetrazol-5-yl)methyl)benzamide920461-57-0C18H19N5OS
- 7-(4-Ethoxyphenyl)-3-((pyridin-2-ylmethyl)thio)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazole921585-64-0C18H19N5OS
- (4-(2-Methyl-6-(1H-pyrrol-1-yl)pyrimidin-4-yl)piperazin-1-yl)(thiophen-2-yl)methanone1421505-43-2C18H19N5OS
- 2-{[4-(Pyridin-2-yl)piperazin-1-yl]methyl}-6-(thiophen-2-yl)pyridazin-3(2H)-one952482-19-8C18H19N5OS
- 1-{2-(Benzylthio)-7-[(E)-2-(dimethylamino)vinyl][1,2,4]triazolo[1,5-a]pyrimidin-6-yl}ethanone1306753-48-9C18H19N5OS
- 3-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-1-[(pyridin-2-yl)methyl]thiourea473427-37-1C18H19N5OS
- 1-(Pyrrolidin-1-yl)-2-((3-(p-tolyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)ethanone852375-30-5C18H19N5OS
- (E)-N'-(4-(Dimethylamino)benzylidene)-3-(5-methylthiophen-2-yl)-1H-pyrazole-5-carbohydrazide1285535-76-3C18H19N5OS
- N-(2,6-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide482637-91-2C18H19N5OS
- 2-{[Bis(4-methylphenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetohydrazide893726-40-4C18H19N5OS
- N-(3,5-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide338425-54-0C18H19N5OS
- N-Cyclopentyl-2-((3-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)thio)acetamide852372-64-6C18H19N5OS
- N-(3,5-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide557065-41-5C18H19N5OS
- N-(2,3-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide482637-92-3C18H19N5OS
- 2-[[5-(4-Aminophenyl)-4-methyl-1,2,4-triazol-3-yl]sulfanyl]-N-(3-methylphenyl)acetamide693230-71-6C18H19N5OS
- 2-(1-Phenylpyrazolo[3,4-d]pyrimidin-4-yl)sulfanyl-1-piperidin-1-ylethanone483293-67-0C18H19N5OS
- 3-[(4-Phenylpiperazin-1-yl)methyl]-5-(pyridin-4-yl)-2,3-dihydro-1,3,4-oxadiazole-2-thione554405-60-6C18H19N5OS
- 2-[(4-Methyl-5-pyridin-3-yl-1,2,4-triazol-3-yl)sulfanyl]-N-(1-phenylethyl)acetamide903042-67-1C18H19N5OS
- (3-(Benzo[d]thiazol-2-yl)pyrazin-2-yl)(4-ethylpiperazin-1-yl)methanone873856-81-6C18H19N5OS
- 2-{[5-(4-Aminophenyl)-4-ethyl-4H-1,2,4-triazol-3-yl]sulfanyl}-N-phenylacetamide500266-11-5C18H19N5OS
- 2-{[5-(3-Aminophenyl)-4-methyl-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(4-methylphenyl)acetamide421570-29-8C18H19N5OS
- N-(4-Ethylphenyl)-2-{[4-methyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide557065-27-7C18H19N5OS
- N-(3,4-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide557065-35-7C18H19N5OS
- N-(2,3-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide338425-33-5C18H19N5OS
- 2-((4-Amino-5-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(2-ethylphenyl)acetamide811473-49-1C18H19N5OS
- 2-((4-Amino-5-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(4-ethylphenyl)acetamide577787-04-3C18H19N5OS
- 2-((4-Amino-5-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(3,4-dimethylphenyl)acetamide586986-51-8C18H19N5OS
- 2-((4-Amino-5-(m-tolyl)-4H-1,2,4-triazol-3-yl)thio)-N-(p-tolyl)acetamide579439-75-1C18H19N5OS
- 2-((4-Amino-5-(m-tolyl)-4H-1,2,4-triazol-3-yl)thio)-N-(m-tolyl)acetamide586995-70-2C18H19N5OS
- 2-[(4-Amino-5-phenyl-4H-1,2,4-triazol-3-yl)sulfanyl]-N-(2,6-dimethylphenyl)acetamide540498-72-4C18H19N5OS
- Urea, 1-(4-antipyrinyl)-3-(2-(4-methylpyridyl))-2-thio-73953-56-7C18H19N5OS
- 3-Cyclopropyl-1-phenyl-N-[5-(propan-2-yl)-1,3,4-thiadiazol-2-yl]-1H-pyrazole-5-carboxamide1134742-06-5C18H19N5OS
- N-((1-(Pyridin-2-yl)piperidin-4-yl)methyl)benzo[c][1,2,5]thiadiazole-5-carboxamide1234831-87-8C18H19N5OS
- 4-((4,6-Dimethylpyrimidin-2-yl)amino)-N-(2-(thiazol-2-yl)ethyl)benzamide1401559-54-3C18H19N5OS
- N-(3-(6,7-Dihydro-5H-pyrrolo[1,2-a]imidazol-3-yl)phenyl)-4-propyl-1,2,3-thiadiazole-5-carboxamide1421482-10-1C18H19N5OS
- N-(6-(3,5-Dimethyl-1H-pyrazol-1-yl)pyrimidin-4-yl)-3-(phenylthio)propanamide1428356-05-1C18H19N5OS
- 5-Phenyl-2-(piperidin-1-yl)thiazolo-[4,5-b]-pyridine-7-carbohydrazide1820604-18-9C18H19N5OS
- N-(4-Ethylphenyl)-2-{[4-methyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide573950-97-7C18H19N5OS
- Urea, 1-(4-antipyrinyl)-3-(2-(6-methylpyridyl))-2-thio-73953-57-8C18H19N5OS
- N-(2,5-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide573669-34-8C18H19N5OS
- N-(3,5-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide577765-96-9C18H19N5OS
- 2-[(4-Methyl-5-pyridin-2-yl-1,2,4-triazol-3-yl)sulfanyl]-N-(1-phenylethyl)acetamide891331-69-4C18H19N5OS
- 4-({(E)-[4-(Dimethylamino)phenyl]methylidene}amino)-5-(4-methoxyphenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione380473-01-8C18H19N5OS
- N-Cyclopentyl-2-({6-phenyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl}sulfanyl)acetamide894062-08-9C18H19N5OS
- 1-{[4-Methyl-2-(1H-pyrrol-1-yl)-1,3-thiazol-5-yl]carbonyl}-4-(2-pyridinyl)piperazine1010889-63-0C18H19N5OS
- 2-[(1-Benzyl-1H-tetrazol-5-yl)sulfanyl]-N-(2-methylphenyl)propanamide1032226-78-0C18H19N5OS
- N-Benzyl-2-[(1-benzyl-1H-tetrazol-5-yl)sulfanyl]propanamide1032226-79-1C18H19N5OS
- N-(2-(tert-Butyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)quinoxaline-2-carboxamide1219906-85-0C18H19N5OS
- N-((1-(Pyrimidin-2-yl)piperidin-4-yl)methyl)benzo[d]thiazole-2-carboxamide1234934-79-2C18H19N5OS
- 3-(1-Azepanylmethyl)-6-(1-benzofuran-2-yl)[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole1260628-34-9C18H19N5OS
- N-Cyclopropyl-1-(pyrido[3',2':4,5]thieno[3,2-D]pyrimidin-4-yl)-4-piperidinecarboxamide1111196-98-5C18H19N5OS
- 3-((4,6-Dimethylpyrimidin-2-yl)amino)-N-(2-(thiazol-2-yl)ethyl)benzamide1401591-35-2C18H19N5OS
- 2-(Benzylthio)-N-(2-(2-(pyrimidin-2-yl)-1H-imidazol-1-yl)ethyl)acetamide1448028-69-0C18H19N5OS
- 1-(2-(5-Cyclopropyl-3-(pyridin-4-yl)-1H-pyrazol-1-yl)ethyl)-3-(thiophen-2-yl)urea1797673-78-9C18H19N5OS
- (1-Benzyl-5-(1H-pyrrol-1-yl)-1H-1,2,3-triazol-4-yl)(thiomorpholino)methanone2034478-99-2C18H19N5OS
- 2-{[4-Amino-5-(3-methylphenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(2-methylphenyl)acetamide665017-39-0C18H19N5OS
- N-[[2-(4-Ethylphenyl)benzotriazol-5-yl]carbamothioyl]propanamide430447-84-0C18H19N5OS
- N-(2-Ethylphenyl)-2-{[4-methyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide578748-46-6C18H19N5OS
- 4-{[4-(Dimethylamino)benzylidene]amino}-5-(4-methoxyphenyl)-4H-1,2,4-triazole-3-thiolC18H19N5OS
- 2-{[4-Amino-5-(2-methylphenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(3-methylphenyl)acetamide578757-29-6C18H19N5OS
- N-(2,6-Dimethylphenyl)-2-{[4-methyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetamide765907-34-4C18H19N5OS
- N-(2-Methylphenyl)-3-[1-(2-methylphenyl)tetrazol-5-yl]sulfanylpropanamide892072-75-2C18H19N5OS
- 2-{[4-Amino-5-(2-methylphenyl)-4H-1,2,4-triazol-3-yl]sulfanyl}-N-(4-methylphenyl)acetamide840495-50-3C18H19N5OS
- N-(4-Methylphenyl)-3-[1-(4-methylphenyl)tetrazol-5-yl]sulfanylpropanamide892075-43-3C18H19N5OS
- N-(4-Methylphenyl)-3-[1-(2-methylphenyl)tetrazol-5-yl]sulfanylpropanamide892075-27-3C18H19N5OS
- (1-Ethyl-1H-benzoimidazol-2-ylsulfanyl)-acetic acid [1-pyridin-4-yl-eth-(Z)-ylidene]-hydrazide315215-88-4C18H19N5OS
- 2-[(6-Phenyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)sulfanyl]-1-piperidin-1-ylethanone894036-14-7C18H19N5OS
- 2-({[1-(2,4-Dimethylphenyl)-1H-tetrazol-5-yl]methyl}sulfanyl)-N-phenylacetamide912898-77-2C18H19N5OS
- N-Benzyl-2-{[1-(2,3-dimethylphenyl)-1H-tetrazol-5-yl]sulfanyl}acetamide904818-17-3C18H19N5OS
- 2-[(1-Benzyl-1H-tetrazol-5-yl)sulfanyl]-N-(2,6-dimethylphenyl)acetamide1032229-55-2C18H19N5OS
- N-(2-Phenylethyl)-2-(1H-tetrazol-1-yl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide1144495-81-7C18H19N5OS
- 4-Methyl-N-(2-((6-methylpyridazin-3-yl)amino)ethyl)-2-phenylthiazole-5-carboxamide1170481-47-6C18H19N5OS
Frequently asked questions
What is the molar mass of C18H19N5OS?
The molar mass of C18H19N5OS is 353.44 g/mol, calculated from standard atomic weights for 18 carbon atoms, 19 hydrogen atoms, 5 nitrogen atoms, 1 oxygen atom and 1 sulfur atom. The monoisotopic mass is 353.1310 Da.
How many compounds have the formula C18H19N5OS?
CompoundList lists 181 compounds with the molecular formula C18H19N5OS, including 2-((4-ET-5-(2-Pyridinyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-methylphenyl)acetamide, 2-[[4-(3-Bicyclo[2.2.1]heptanyl)-5-sulfanylidene-1H-1,2,4-triazol-3-yl]methyl]phthalazin-1-one, 2-[(1-Phenyl-1H-1,2,3,4-tetrazol-5-yl)sulfanyl]-N-[4-(propan-2-yl)phenyl]acetamide. 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 C18H19N5OS?
C18H19N5OS has a degree of unsaturation of 12. 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.