Molecular formula
C18H21N3O3S
227 compounds have this formula on CompoundList.
- Molar mass
- 359.44g/mol
- Monoisotopic mass
- 363.1555Da
- Atoms
- 46
- Elements
- 5
- Rings plus double bonds
- 10
The formula C18H21N3O3S describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 3 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 × 1860.15%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 215.89%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 311.69%14.007 × 3 = 42.021 g/mol
- O Oxygen × 313.35%15.999 × 3 = 47.997 g/mol
- S Sulfur × 18.92%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H21N3O3S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 227 compounds
Rabeprazole
CAS 117976-89-3C18H21N3O3S
(+)-Rabeprazole
CAS 177795-60-7C18H21N3O3S
(S)-Rabeprazole
CAS 177795-59-4C18H21N3O3S
![N-(4-{[2-(Pyridin-3-yl)piperidin-1-yl]sulfonyl}phenyl)acetamide chemical structure, C18H21N3O3S, CAS 380890-03-9](/s/RIKLLPBLRCPXRV-UHFFFAOYSA-N.svg)
N-(4-{[2-(Pyridin-3-yl)piperidin-1-yl]sulfonyl}phenyl)acetamide
CAS 380890-03-9C18H21N3O3S
4-(Benzenesulfonyl)-N-methyl-N-phenyl-1-piperazinecarboxamide
CAS 526190-60-3C18H21N3O3S
![2-[[6-(3,4-Dimethoxyphenyl)-3-pyridazinyl]thio]-1-(1-pyrrolidinyl)ethanone chemical structure, C18H21N3O3S, CAS 626222-82-0](/s/VCSBLUOZMMRJMH-UHFFFAOYSA-N.svg)
2-[[6-(3,4-Dimethoxyphenyl)-3-pyridazinyl]thio]-1-(1-pyrrolidinyl)ethanone
CAS 626222-82-0C18H21N3O3S
5-Methoxy-2-(((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)sulfinyl)-1-methyl-1H-benzimidazole
CAS 89352-76-1C18H21N3O3S
![N-Phenyl-N'-[4-(1-piperidinylsulfonyl)phenyl]urea chemical structure, C18H21N3O3S, CAS 315671-44-4](/s/RXHAPRMDOWLXLG-UHFFFAOYSA-N.svg)
N-Phenyl-N'-[4-(1-piperidinylsulfonyl)phenyl]urea
CAS 315671-44-4C18H21N3O3S
4-(Piperidin-1-ylsulfonyl)-N-(pyridin-3-ylmethyl)benzamide
CAS 303125-47-5C18H21N3O3S
PF-02413873
CAS 936345-35-6C18H21N3O3S
![1-[(4-Methylphenyl)sulfonyl]-N-3-pyridinyl-3-piperidinecarboxamide chemical structure, C18H21N3O3S, CAS 326870-55-7](/s/ATVZQCJJEMHSMD-UHFFFAOYSA-N.svg)
1-[(4-Methylphenyl)sulfonyl]-N-3-pyridinyl-3-piperidinecarboxamide
CAS 326870-55-7C18H21N3O3S
2-((3-Cyano-4-(furan-2-yl)-6-oxo-1,4,5,6-tetrahydropyridin-2-yl)thio)-N-cyclohexylacetamide
CAS 693231-08-2C18H21N3O3S
N-(6-Methylpyridin-2-yl)-4-piperidin-1-ylsulfonylbenzamide
CAS 313529-16-7C18H21N3O3S
![N-(2-(4-Methoxyphenyl)-5-oxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)cyclopentanecarboxamide chemical structure, C18H21N3O3S, CAS 958967-14-1](/s/ZNLHRHXAGHWMJY-UHFFFAOYSA-N.svg)
N-(2-(4-Methoxyphenyl)-5-oxido-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)cyclopentanecarboxamide
CAS 958967-14-1C18H21N3O3S
![N-(5,5-Dioxido-2-(o-tolyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)cyclopentanecarboxamide chemical structure, C18H21N3O3S, CAS 449785-18-6](/s/JBLSNMHPAYNGNH-UHFFFAOYSA-N.svg)
N-(5,5-Dioxido-2-(o-tolyl)-4,6-dihydro-2H-thieno[3,4-c]pyrazol-3-yl)cyclopentanecarboxamide
CAS 449785-18-6C18H21N3O3S
![N-[1-(4-Methoxybenzyl)-5,6-dimethyl-1H-1,3-benzimidazol-4-yl]methanesulfonamide chemical structure, C18H21N3O3S, CAS 338955-05-8](/s/XKFHHOBYJADYLZ-UHFFFAOYSA-N.svg)
N-[1-(4-Methoxybenzyl)-5,6-dimethyl-1H-1,3-benzimidazol-4-yl]methanesulfonamide
CAS 338955-05-8C18H21N3O3S
![N-{4-[(4-Methylpiperidin-1-yl)sulfonyl]phenyl}pyridine-4-carboxamide chemical structure, C18H21N3O3S, CAS 876522-44-0](/s/LZZFTATUJJQOIF-UHFFFAOYSA-N.svg)
N-{4-[(4-Methylpiperidin-1-yl)sulfonyl]phenyl}pyridine-4-carboxamide
CAS 876522-44-0C18H21N3O3S
![N-[(E)-(3-Methoxy-4-propan-2-yloxyphenyl)methylideneamino]-2-pyridin-2-ylsulfanylacetamide chemical structure, C18H21N3O3S, CAS 342042-07-3](/s/ZRBVRNAACVXKKM-RGVLZGJSSA-N.svg)
N-[(E)-(3-Methoxy-4-propan-2-yloxyphenyl)methylideneamino]-2-pyridin-2-ylsulfanylacetamide
CAS 342042-07-3C18H21N3O3S
Methyl 4-(4-methylpiperazin-1-yl)-3-(thiophene-2-carbonylamino)benzoate
CAS 876889-47-3C18H21N3O3S
![6-Hydroxy-3-(4-methylphenyl)-2-{[2-oxo-2-(piperidin-1-yl)ethyl]sulfanyl}pyrimidin-4(3H)-one chemical structure, C18H21N3O3S, CAS 373376-61-5](/s/NNFAWCTURJOEQX-UHFFFAOYSA-N.svg)
6-Hydroxy-3-(4-methylphenyl)-2-{[2-oxo-2-(piperidin-1-yl)ethyl]sulfanyl}pyrimidin-4(3H)-one
CAS 373376-61-5C18H21N3O3S
![N'-Methyl-N'-[4-methyl-3-(methylsulfonyl)-6-phenyl-2-pyridinyl]cyclopropanecarbohydrazide chemical structure, C18H21N3O3S, CAS 320423-04-9](/s/NLURTSVNDDUQMM-UHFFFAOYSA-N.svg)
N'-Methyl-N'-[4-methyl-3-(methylsulfonyl)-6-phenyl-2-pyridinyl]cyclopropanecarbohydrazide
CAS 320423-04-9C18H21N3O3S
![(5,6-Dihydro-1,4-dioxin-2-yl)(4-(4,5-dimethylbenzo[d]thiazol-2-yl)piperazin-1-yl)methanone chemical structure, C18H21N3O3S, CAS 886915-93-1](/s/KTVICARYPVUBHZ-UHFFFAOYSA-N.svg)
(5,6-Dihydro-1,4-dioxin-2-yl)(4-(4,5-dimethylbenzo[d]thiazol-2-yl)piperazin-1-yl)methanone
CAS 886915-93-1C18H21N3O3S
![N-[4-(4-Methylsulfonylpiperazin-1-yl)phenyl]benzamide chemical structure, C18H21N3O3S, CAS 672342-91-5](/s/MBZLWGBIORLZJJ-UHFFFAOYSA-N.svg)
N-[4-(4-Methylsulfonylpiperazin-1-yl)phenyl]benzamide
CAS 672342-91-5C18H21N3O3S
Benzyl 2-((4-methyl-6-morpholinopyrimidin-2-yl)thio)acetate
CAS 868213-65-4C18H21N3O3S
- 2-{[6-(Acetylamino)-3-pyridinyl]sulfanyl}-N-(3-methoxypropyl)benzenecarboxamide343373-11-5C18H21N3O3S
- 4-(Benzenesulfonyl)-N-(4-methylphenyl)piperazine-1-carboxamide893189-49-6C18H21N3O3S
- 2-((6-(4-Ethoxyphenyl)pyridazin-3-yl)thio)-1-morpholinoethanone893974-16-8C18H21N3O3S
- 1-[(4-Methylphenyl)sulfonyl]-N-(4-pyridinylmethyl)-2-pyrrolidinecarboxamide1043578-78-4C18H21N3O3S
- 2-(Pyridin-3-ylcarbamoylmethanesulfinyl)-N-(2,4,6-trimethyl-phenyl)-acetamide957483-91-9C18H21N3O3S
- 2-Methyl-5-(4-phenylpiperazin-1-yl)sulfonylbenzamide494839-13-3C18H21N3O3S
- 3-Thiophenecarboxamide, 2-[[[acetyl(phenylmethyl)amino]acetyl]amino]-4,5-dimethyl-606109-87-9C18H21N3O3S
- N'-(3-Cyanophenyl)sulfonyladamantane-1-carbohydrazide790276-54-9C18H21N3O3S
- 4-(Benzenesulfonyl)-N-(2-methylphenyl)piperazine-1-carboxamide893189-57-6C18H21N3O3S
- N-[4-[(4-methyl-1-piperazinyl)carbonyl]phenyl]Benzenesulfonamide831177-92-5C18H21N3O3S
- 1-(Phenylsulfonyl)-N-(3-pyridinylmethyl)-3-piperidinecarboxamide831212-21-6C18H21N3O3S
- 1-(Phenylsulfonyl)-N-(pyridin-2-ylmethyl)piperidine-3-carboxamide831248-11-4C18H21N3O3S
- N-[2-(2-Methoxyphenyl)ethyl]-2-[(2-oxo-1,5,6,7-tetrahydrocyclopenta[d]pyrimidin-4-yl)sulfanyl]acetamide898450-06-1C18H21N3O3S
- N-{4-[(4-Phenylpiperazin-1-yl)sulfonyl]phenyl}acetamide321531-92-4C18H21N3O3S
- N-[2-[2-(4-tert-Butylbenzoyl)hydrazinyl]-2-oxoethyl]thiophene-2-carboxamide852919-23-4C18H21N3O3S
- N'-Methyl-N-(3-morpholin-4-ylsulfonylphenyl)benzenecarboximidamide848299-97-8C18H21N3O3S
- N-[(E)-(3-Methoxy-4-propoxyphenyl)methylideneamino]-2-pyridin-2-ylsulfanylacetamide342033-79-8C18H21N3O3S
- 3,4,5-Trimethoxybenzaldehyde N-(3-methylphenyl)thiosemicarbazone765281-64-9C18H21N3O3S
- 4-Ethoxy-N-[3-(1H-imidazol-1-yl)propyl]naphthalene-1-sulfonamide878693-74-4C18H21N3O3S
- 1-Phenyl-3-((1-(phenylsulfonyl)pyrrolidin-2-yl)methyl)urea896264-54-3C18H21N3O3S
- 4-(2-Methylpropanamido)-N-{2-[(thiophen-2-yl)formamido]ethyl}benzamide1021219-64-6C18H21N3O3S
- 2-({2-[2-(Pyridin-3-yl)-1,3-thiazol-4-yl]ethyl}carbamoyl)cyclohexane-1-carboxylic acid863513-49-9C18H21N3O3S
- 2-(3-Ethoxy-2-hydroxyphenyl)-7-methyl-2,3,5,6,7,8-hexahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4(1H)-one353462-99-4C18H21N3O3S
- 1-((3-(tert-Butyl)-4-ethoxyphenyl)sulfonyl)-1H-benzo[d][1,2,3]triazole942358-27-2C18H21N3O3S
- 3-(Azepan-1-ylsulfonyl)-N-(pyridin-3-yl)benzamide890594-25-9C18H21N3O3S
- 1-(3-Methoxypropyl)-2-(3-nitrophenyl)-5,6,7,8-tetrahydroquinazoline-4-thione630065-55-3C18H21N3O3S
- N-(3-Methoxybenzyl)-2-((2-oxo-1,2,5,6,7,8-hexahydroquinazolin-4-yl)thio)acetamide946372-15-2C18H21N3O3S
- N-(2-Ethoxyphenyl)-2-[(2-oxo-5,6,7,8-tetrahydro-1H-quinazolin-4-yl)sulfanyl]acetamide933230-58-1C18H21N3O3S
- 2-(2-Ethylaminobenzylsulfinyl)-5,6-dimethoxybenzimidazole108499-48-5C18H21N3O3S
- N-(2-Methoxybenzyl)-2-((2-oxo-1,2,5,6,7,8-hexahydroquinazolin-4-yl)thio)acetamide933230-50-3C18H21N3O3S
- N-(5-Methylisoxazol-3-yl)-1-(2-(methylthio)benzoyl)piperidine-4-carboxamide1226448-09-4C18H21N3O3S
- N-(2-(Propylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)picolinamide1069934-11-7C18H21N3O3S
- 1-(3-Methoxy-4-(2-oxopiperidin-1-yl)phenyl)-3-(thiophen-2-ylmethyl)urea1206986-09-5C18H21N3O3S
- (2Z)-2-[2,4-Dioxo-3-(piperidin-1-ylmethyl)-1,3-thiazolidin-5-ylidene]-N-(4-methylphenyl)acetamide429636-36-2C18H21N3O3S
- 2-[4-(Benzenesulfonyl)piperazin-1-yl]-N-phenylacetamide890269-16-6C18H21N3O3S
- Methyl 4-(((4-methyl-6-morpholinopyrimidin-2-yl)thio)methyl)benzoate946358-56-1C18H21N3O3S
- 1-(5-(3-Hydroxyphenyl)-3-(thiophen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-2-((2-methoxyethyl)amino)ethanone899724-52-8C18H21N3O3S
- N-{4-[(4-Methylpiperidin-1-yl)sulfonyl]phenyl}pyridine-2-carboxamide1182564-94-8C18H21N3O3S
- Ethyl 1-(2-(phenylamino)thiazole-4-carbonyl)piperidine-4-carboxylate1105218-46-9C18H21N3O3S
- N-[2-(4-Phenylpiperazine-1-carbonyl)phenyl]methanesulfonamide826996-75-2C18H21N3O3S
- (1-(2-Pyridinylmethyl)-15-pyrrolidin-1-yl)acetonitrile benzenesulfonate60032-56-6C18H21N3O3S
- 2-((2-(2,6-Dimethylmorpholino)-2-oxoethyl)thio)-6-phenylpyrimidin-4(3H)-one899755-13-6C18H21N3O3S
- (2S,4R)-1-Acetyl-4-hydroxy-N-[[4-(4-methyl-5-thiazolyl)phenyl]methyl]-2-pyrrolidinecarboxamide1448187-20-9C18H21N3O3S
- N-Cyclopropyl-2-(2-((3-methoxybenzyl)thio)-4-methyl-6-oxo-1,6-dihydropyrimidin-5-yl)acetamide1105200-06-3C18H21N3O3S
- 4-[4-(Methylsulfanyl)phenyl]-6-[(oxolan-2-yl)methyl]-1H,2H,3H,4H,5H,6H,7H-pyrrolo[3,4-d]pyrimidine-2,5-dione941980-34-3C18H21N3O3S
- 2-(1-(Phenylsulfonyl)piperidin-2-yl)-N-(pyridin-3-yl)acetamide1021089-96-2C18H21N3O3S
- 1-(Benzo[d][1,3]dioxol-5-yl)-3-(2-(pyrrolidin-1-yl)-2-(thiophen-3-yl)ethyl)urea1170369-13-7C18H21N3O3S
- 2-{6,7-Dimethyl-5-oxo-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidin-3-yl}-N-[(3-methoxyphenyl)methyl]acetamide953190-60-8C18H21N3O3S
- N-Methyl omeprazole784143-42-6C18H21N3O3S
- 2-[(Diethylamino)methyl]-4-[(1,1-dioxido-1,2-benzisothiazol-3-yl)amino]phenol296791-04-3C18H21N3O3S
- 2-[[[4-(3-Methoxypropoxy)-3-methyl-1-oxido-2-pyridinyl]methyl]thio]-1H-benzimidazole924663-40-1C18H21N3O3S
- N-Phenyl-3-[(piperidine-1-sulfonyl)amino]benzamide90233-68-4C18H21N3O3S
- Ethyl 5-[4-(dimethylamino)phenyl]-7-methyl-3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate327032-79-1C18H21N3O3S
- Ethyl 4-(3-(6-methyl-4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)ureido)benzoate313395-64-1C18H21N3O3S
- 1-Ethyl-6-[(4-methyl-1-piperazinyl)sulfonyl]benzo[cd]indol-2(1H)-one304685-28-7C18H21N3O3S
- 2-(Hexylsulfanyl)-4-(4-nitrophenyl)-6-oxo-1,4,5,6-tetrahydropyridine-3-carbonitrile361478-07-1C18H21N3O3S
- 1,3-Dimethyl-4-propyl-1H-pyrazolo[3,4-b]pyridin-6-yl 4-methylbenzene-1-sulfonate1000932-04-6C18H21N3O3S
- 1-((5-(tert-Butyl)-2-ethoxyphenyl)sulfonyl)-1H-benzo[d][1,2,3]triazole942357-18-8C18H21N3O3S
- 1-(Butan-2-yl)-4-methyl-1H-pyrazolo[3,4-b]pyridin-6-yl 4-methylbenzene-1-sulfonate929975-61-1C18H21N3O3S
- PR antagonist 1936345-34-5C18H21N3O3S
- 1 suppliersRabeprazole-d4934295-48-4C18H21N3O3S
- N-{4-[(4-Methyl-1-piperazinyl)sulfonyl]phenyl}benzamide717867-56-6C18H21N3O3S
- 2-(3,4-Dimethoxyphenyl)-7-methyl-2,3,5,6,7,8-hexahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4(1H)-one4815-19-4C18H21N3O3S
- 1-((2-Ethoxy-5-isopropyl-4-methylphenyl)sulfonyl)-1H-benzo[d][1,2,3]triazole927636-96-2C18H21N3O3S
- (1-(1,1-Dioxidotetrahydrothiophen-3-yl)-5-phenyl-1H-pyrazol-3-yl)(pyrrolidin-1-yl)methanone942721-15-5C18H21N3O3S
- 1-(Thiophen-2-ylmethyl)-3-(3,3,5-trimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)urea1172728-26-5C18H21N3O3S
- N3-methyl esomeprazole1346240-11-6C18H21N3O3S
- Ethyl 2-{[3-(1-methyl-1H-pyrazol-4-yl)acryloyl]amino}-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate515857-35-9C18H21N3O3S
- Ethyl 2-(pyrazine-2-carbonylamino)-4,5,6,7,8,9-hexahydrocycloocta[b]thiophene-3-carboxylate354546-19-3C18H21N3O3S
- 1-(2-(4-Ethylphenoxy)acetyl)-4-(4-methoxyphenyl)thiosemicarbazide903833-89-6C18H21N3O3S
- N-[1-(3-Methoxybenzyl)-5,6-dimethyl-1H-1,3-benzimidazol-4-yl]methanesulfonamide338964-32-2C18H21N3O3S
- 4-(N-Cyclopentylsulfamoyl)-N-(pyridin-2-ylmethyl)benzamide898656-90-1C18H21N3O3S
- Methyl 3-{[(4-phenyl-1-piperazinyl)acetyl]amino}-2-thiophenecarboxylate227958-48-7C18H21N3O3S
- N-(4-(6-(Ethylsulfonyl)pyridazin-3-yl)phenyl)cyclopentanecarboxamide1005307-89-0C18H21N3O3S
- 1-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)-3-phenethylurea1203380-92-0C18H21N3O3S
- 1-(5-Ethyl-3,3-dimethyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-8-yl)-3-(thiophen-2-yl)urea1169963-49-8C18H21N3O3S
Frequently asked questions
What is the molar mass of C18H21N3O3S?
The molar mass of C18H21N3O3S is 359.44 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 3 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 363.1555 Da.
How many compounds have the formula C18H21N3O3S?
CompoundList lists 227 compounds with the molecular formula C18H21N3O3S, including Rabeprazole, (+)-Rabeprazole, (S)-Rabeprazole. 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 C18H21N3O3S?
C18H21N3O3S 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.