Molecular formula
C18H21N3O5S
154 compounds have this formula on CompoundList.
- Molar mass
- 391.44g/mol
- Monoisotopic mass
- 391.1202Da
- Atoms
- 48
- Elements
- 5
- Rings plus double bonds
- 10
The formula C18H21N3O5S describes a molecule made of 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 5 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 × 1855.23%12.011 × 18 = 216.198 g/mol
- H Hydrogen × 215.41%1.008 × 21 = 21.168 g/mol
- N Nitrogen × 310.73%14.007 × 3 = 42.021 g/mol
- O Oxygen × 520.44%15.999 × 5 = 79.995 g/mol
- S Sulfur × 18.19%32.06 × 1 = 32.060 g/mol
Look up another formula
Compounds with the formula C18H21N3O5S
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 100 of 154 compounds
Rabeprazole sulfone N-oxide
CAS 924663-37-6C18H21N3O5S
![4-{[4-(4-Methoxyphenyl)-1,3-thiazol-2-yl]amino}-3-(morpholin-4-yl)-4-oxobutanoic acid chemical structure, C18H21N3O5S, CAS 876894-44-9](/s/QICSHKAUWMRCAT-UHFFFAOYSA-N.svg)
4-{[4-(4-Methoxyphenyl)-1,3-thiazol-2-yl]amino}-3-(morpholin-4-yl)-4-oxobutanoic acid
CAS 876894-44-9C18H21N3O5S
![N-[4-(tert-Butylsulfamoyl)phenyl]-2-(2-nitrophenyl)acetamide chemical structure, C18H21N3O5S, CAS 590399-06-7](/s/NGTMOSHLPNZKQO-UHFFFAOYSA-N.svg)
N-[4-(tert-Butylsulfamoyl)phenyl]-2-(2-nitrophenyl)acetamide
CAS 590399-06-7C18H21N3O5S
Dipropan-2-yl 3-methyl-5-(pyrazine-2-carbonylamino)thiophene-2,4-dicarboxylate
CAS 420092-50-8C18H21N3O5S
![[4-(3,4-Dimethoxyphenyl)sulfonylpiperazin-1-yl]-pyridin-3-ylmethanone chemical structure, C18H21N3O5S, CAS 830341-48-5](/s/BPLGSARLWKFLRE-UHFFFAOYSA-N.svg)
[4-(3,4-Dimethoxyphenyl)sulfonylpiperazin-1-yl]-pyridin-3-ylmethanone
CAS 830341-48-5C18H21N3O5S
![Methyl 2-({[4-(furan-2-ylcarbonyl)piperazin-1-yl]acetyl}amino)-5-methylthiophene-3-carboxylate chemical structure, C18H21N3O5S, CAS 900608-09-5](/s/SXZMFIJGEIDWCN-UHFFFAOYSA-N.svg)
Methyl 2-({[4-(furan-2-ylcarbonyl)piperazin-1-yl]acetyl}amino)-5-methylthiophene-3-carboxylate
CAS 900608-09-5C18H21N3O5S
![1-[(4-Methoxyphenyl)sulfonyl]-4-(3-nitrobenzyl)piperazine chemical structure, C18H21N3O5S, CAS 428831-53-2](/s/LMXBRNNMHXJGKV-UHFFFAOYSA-N.svg)
1-[(4-Methoxyphenyl)sulfonyl]-4-(3-nitrobenzyl)piperazine
CAS 428831-53-2C18H21N3O5S
![N-[4-(Butylsulfamoyl)phenyl]-2-(2-nitrophenyl)acetamide chemical structure, C18H21N3O5S, CAS 600132-39-6](/s/IZWVYUOVGYRZIL-UHFFFAOYSA-N.svg)
N-[4-(Butylsulfamoyl)phenyl]-2-(2-nitrophenyl)acetamide
CAS 600132-39-6C18H21N3O5S
![N-Benzyl-4-[methyl-(4-nitrophenyl)sulfonylamino]butanamide chemical structure, C18H21N3O5S, CAS 709008-76-4](/s/HDWVXRZGUVOOSW-UHFFFAOYSA-N.svg)
N-Benzyl-4-[methyl-(4-nitrophenyl)sulfonylamino]butanamide
CAS 709008-76-4C18H21N3O5S
![1-[(4-Methoxyphenyl)sulfonyl]-4-(2-nitrobenzyl)piperazine chemical structure, C18H21N3O5S, CAS 428836-33-3](/s/JJYIYWADOUKVEK-UHFFFAOYSA-N.svg)
1-[(4-Methoxyphenyl)sulfonyl]-4-(2-nitrobenzyl)piperazine
CAS 428836-33-3C18H21N3O5S
2-Ethoxy-N-(3-morpholin-4-ylsulfonylphenyl)pyridine-3-carboxamide
CAS 521281-14-1C18H21N3O5S
1-(2-Ethoxyphenyl)-4-(2-nitrophenyl)sulfonylpiperazine
CAS 541534-52-5C18H21N3O5S
![1-[(4-Methoxyphenyl)sulfonyl]-4-(4-nitrobenzyl)piperazine chemical structure, C18H21N3O5S, CAS 425398-49-8](/s/AVWIDQJQZNROAN-UHFFFAOYSA-N.svg)
1-[(4-Methoxyphenyl)sulfonyl]-4-(4-nitrobenzyl)piperazine
CAS 425398-49-8C18H21N3O5S
N-(2-((4-(Furan-2-carbonyl)piperazin-1-yl)sulfonyl)ethyl)benzamide
CAS 899955-92-1C18H21N3O5S
![1-[(2-Methoxyphenyl)methyl]-4-(4-nitrophenyl)sulfonylpiperazine chemical structure, C18H21N3O5S, CAS 428841-88-7](/s/PRXXWNXQCJWAPQ-UHFFFAOYSA-N.svg)
1-[(2-Methoxyphenyl)methyl]-4-(4-nitrophenyl)sulfonylpiperazine
CAS 428841-88-7C18H21N3O5S
1-(4-Methoxyphenyl)-4-(4-methyl-3-nitrophenyl)sulfonylpiperazine
CAS 432509-23-4C18H21N3O5S
8-Ethoxy-6-oxo-N-(4-sulfamoylphenyl)-2,3,4,6-tetrahydro-1H-quinolizine-9-carboxamide
CAS 1775507-66-8C18H21N3O5S
N-(3,5-Dimethylphenyl)-2-(2-methyl-N-methylsulfonyl-5-nitroanilino)acetamide
CAS 695160-12-4C18H21N3O5S
N1-(2-methoxy-5-methylphenyl)-N2-(4-sulfamoylphenethyl)oxalamide
CAS 899748-62-0C18H21N3O5S
![(5-Methylisoxazol-3-yl)(4-(phenylsulfonyl)-1-oxa-4,8-diazaspiro[4.5]decan-8-yl)methanone chemical structure, C18H21N3O5S, CAS 1211702-26-9](/s/MENJHPVLGWMNEB-UHFFFAOYSA-N.svg)
(5-Methylisoxazol-3-yl)(4-(phenylsulfonyl)-1-oxa-4,8-diazaspiro[4.5]decan-8-yl)methanone
CAS 1211702-26-9C18H21N3O5S
Mdl 19152
CAS 61786-72-9C18H21N3O5S
Ethyl 1-(2-(2-(furan-2-carboxamido)thiazol-4-yl)acetyl)piperidine-4-carboxylate
CAS 921520-68-5C18H21N3O5S
![{3-[(4-Acetylpiperazinyl)sulfonyl]phenyl}-N-(2-furylmethyl)carboxamide chemical structure, C18H21N3O5S, CAS 941555-09-5](/s/QWQDWKDOQQLPAD-UHFFFAOYSA-N.svg)
{3-[(4-Acetylpiperazinyl)sulfonyl]phenyl}-N-(2-furylmethyl)carboxamide
CAS 941555-09-5C18H21N3O5S
Methyl 4-oxo-3-(3-oxo-3-(((tetrahydrofuran-2-yl)methyl)amino)propyl)-2-thioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylate
CAS 946306-94-1C18H21N3O5S
- 1-(2-Methoxyphenyl)-4-(2-methyl-5-nitrophenyl)sulfonylpiperazine865593-60-8C18H21N3O5S
- Methyl 3-[4-(morpholin-4-yl)-4-oxobutyl]-4-oxo-2-sulfanylidene-1,2,3,4-tetrahydroquinazoline-7-carboxylate1021227-76-8C18H21N3O5S
- (Z)-N-(4,7-Dimethoxy-3-propylbenzo[d]thiazol-2(3H)-ylidene)-2-(2,5-dioxopyrrolidin-1-yl)acetamide898375-95-6C18H21N3O5S
- 4-(Morpholinosulfonyl)-N-(4,5,6,7-tetrahydrobenzo[c]isoxazol-3-yl)benzamide946246-99-7C18H21N3O5S
- 1-Benzyl-4-((4-methoxy-3-nitrophenyl)sulfonyl)piperazine325694-67-5C18H21N3O5S
- 1-(4-Methoxyphenyl)-3-[(3,4,5-trimethoxybenzoyl)amino]thiourea70452-42-5C18H21N3O5S
- 4-({N-[(4-Methoxy-3-methylphenyl)sulfonyl]-N-methylglycyl}amino)benzamide708991-56-4C18H21N3O5S
- 1-(2-Ethoxyphenyl)-4-[(4-nitrophenyl)sulfonyl]piperazine544460-90-4C18H21N3O5S
- tert-Butyl 2-[(8,9-dimethoxy-2-oxo-2,3-dihydroimidazo[1,2-c]quinazolin-5-yl)sulfanyl]acetate672949-29-0C18H21N3O5S
- 4-({[2-Ethoxy(methylsulfonyl)anilino]acetyl}amino)benzamide335211-50-2C18H21N3O5S
- N-Butan-2-yl-2-(N-(2-nitrophenyl)sulfonylanilino)acetamide425421-64-3C18H21N3O5S
- tert-Butyl 2-methyl-2-[5-methyl-6-(1,3-oxazol-2-yl)-2,4-dioxo-1H-thieno[2,3-d]pyrimidin-3-yl]propanoate2131091-31-9C18H21N3O5S
- Ethyl 5-[(3-methoxycarbonyl-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)carbamoyl]-2-methylpyrazole-3-carboxylate494791-27-4C18H21N3O5S
- N-(3-Methylphenyl)-2-[5-(morpholin-4-ylsulfonyl)-2-oxopyridin-1(2H)-yl]acetamide1251557-55-7C18H21N3O5S
- N-Methyl-2-[5-(morpholin-4-ylsulfonyl)-2-oxopyridin-1(2H)-yl]-N-phenylacetamide1251573-82-6C18H21N3O5S
- N-[4-(1,1-Dioxido-1,2-thiazolidin-2-yl)phenyl]-3-(2-hydroxy-6-methyl-4-oxopyridin-1(4H)-yl)propanamide1630835-63-0C18H21N3O5S
- Diethyl 3-methyl-5-{[3-(1-methyl-1H-pyrazol-4-yl)acryloyl]amino}-2,4-thiophenedicarboxylate515857-67-7C18H21N3O5S
- N-[4-(Diethylsulfamoyl)phenyl]-2-methyl-3-nitrobenzamide600160-79-0C18H21N3O5S
- N-[4-(Diethylsulfamoyl)phenyl]-3-methyl-2-nitrobenzamide600641-13-2C18H21N3O5S
- N-[4-(Butylsulfamoyl)phenyl]-4-methyl-3-nitrobenzamide587846-70-6C18H21N3O5S
- 2-(4-Morpholin-4-ylsulfonylphenoxy)-N-(pyridin-3-ylmethyl)acetamide328104-61-6C18H21N3O5S
- 2-[N-(Benzenesulfonyl)-4-nitroanilino]-N-(2-methylpropyl)acetamide425422-00-0C18H21N3O5S
- Ethyl 5-[(3-ethoxycarbonyl-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)carbamoyl]-1-methylpyrazole-3-carboxylate512808-48-9C18H21N3O5S
- N-(Oxolan-2-ylmethyl)-4-(8-oxo-6-sulfanylidene-5H-[1,3]dioxolo[4,5-g]quinazolin-7-yl)butanamide688054-61-7C18H21N3O5S
- 1-(2-(4-Ethylphenoxy)acetyl)-4-((4-methylphenyl)sulfonyl)semicarbazide1024439-41-5C18H21N3O5S
- N-[[3-(2-Ethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl]-N-(furan-2-ylmethyl)ethanesulfonamide878730-45-1C18H21N3O5S
- N-(4-Acetylphenyl)-5-((4-methylpiperazin-1-yl)sulfonyl)furan-2-carboxamide1170597-20-2C18H21N3O5S
- N-(4-Methoxyphenyl)-2-[2-oxo-3-(pyrrolidin-1-ylsulfonyl)pyridin-1(2H)-yl]acetamide1251704-38-7C18H21N3O5S
- N-(2-Methylphenyl)-2-[5-(morpholin-4-ylsulfonyl)-2-oxopyridin-1(2H)-yl]acetamide1251685-08-1C18H21N3O5S
- N-(3-Nitro-2-pyridinesulfenyl)-O-t-butyl-L-tyrosine76863-84-8C18H21N3O5S
- Phenazinium, 5-methyl-3-morpholino-, methyl sulfate40816-83-9C18H21N3O5S
- 1-[(4-Methoxyphenyl)methyl]-4-(4-nitrophenyl)sulfonylpiperazine428834-59-7C18H21N3O5S
- 1-[(4-Methoxyphenyl)methyl]-4-(2-nitrophenyl)sulfonylpiperazine428853-98-9C18H21N3O5S
- 4-({[4-(Propan-2-ylsulfamoyl)phenoxy]acetyl}amino)benzamide746610-76-4C18H21N3O5S
- 1-(4-Methoxy-2-nitrophenyl)-4-(4-methylphenyl)sulfonylpiperazine706776-75-2C18H21N3O5S
- (Z)-2-(2,5-Dioxopyrrolidin-1-yl)-N-(6-ethoxy-3-(2-methoxyethyl)benzo[d]thiazol-2(3H)-ylidene)acetamide865161-96-2C18H21N3O5S
- Ethyl 4-({[(2-methoxy-5-methylphenyl)carbamoyl]methyl}sulfanyl)-6-methyl-2-oxo-1,2-dihydropyrimidine-5-carboxylate946354-64-9C18H21N3O5S
- (5,6-Dihydro-1,4-dioxin-2-yl)(4-(4,7-dimethoxybenzo[d]thiazol-2-yl)piperazin-1-yl)methanone897486-14-5C18H21N3O5S
- N-(4-Methylphenyl)-2-[5-(morpholine-4-sulfonyl)-2-oxo-1,2-dihydropyridin-1-yl]acetamide1251557-61-5C18H21N3O5S
- N-Benzyl-2-[5-(morpholine-4-sulfonyl)-2-oxo-1,2-dihydropyridin-1-yl]acetamide1251594-08-7C18H21N3O5S
- 3-(2-(3-((4-Methoxyphenyl)sulfonyl)azetidin-1-yl)-2-oxoethyl)-5,6-dimethylpyrimidin-4(3H)-one1797144-14-9C18H21N3O5S
- 4-(2,5-Dioxopyrrolidin-1-yl)-N-(3-hydroxy-3-(1-methyl-1H-pyrrol-2-yl)propyl)benzenesulfonamide1795089-41-6C18H21N3O5S
- 1-(1-(4-(Pyrrolidin-1-ylsulfonyl)benzoyl)azetidin-3-yl)pyrrolidine-2,5-dione2034491-97-7C18H21N3O5S
- N-((1r,4r)-4-(Pyrimidin-2-yloxy)cyclohexyl)-2,3-dihydrobenzo[b][1,4]dioxine-6-sulfonamide2034248-64-9C18H21N3O5S
- 1-(3-((6-Methoxypyridazin-3-yl)oxy)pyrrolidin-1-yl)-3-(phenylsulfonyl)propan-1-one2034248-19-4C18H21N3O5S
- Acridine, 9-(morpholinoamino)-, mono(methyl sulfate)28846-42-6C18H21N3O5S
- 4-{[N-(2-Methoxy-5-methylphenyl)-N-(methylsulfonyl)glycyl]amino}benzamide333413-29-9C18H21N3O5S
- N-(4-Acetamidophenyl)-2-[(4-methoxyphenyl)sulfonyl-methylamino]acetamide693265-54-2C18H21N3O5S
- 1-(3-Methoxy-4-nitrophenyl)-4-(4-methylphenyl)sulfonylpiperazine509113-62-6C18H21N3O5S
- Ethyl 4-[2-[(2-methoxyphenyl)methylamino]-2-oxoethyl]sulfanyl-6-methyl-2-oxo-1H-pyrimidine-5-carboxylate899727-11-8C18H21N3O5S
- N1-(4-ethoxyphenyl)-N2-(4-sulfamoylphenethyl)oxalamide900000-91-1C18H21N3O5S
- Ethyl 4-[2-[(3-methoxyphenyl)methylamino]-2-oxoethyl]sulfanyl-6-methyl-2-oxo-1H-pyrimidine-5-carboxylate899957-60-9C18H21N3O5S
- N-(3-Methoxyphenyl)-2-(2-oxo-5-pyrrolidin-1-ylsulfonylpyridin-1-yl)acetamide1251557-18-2C18H21N3O5S
- N-(4-Methoxyphenyl)-2-(2-oxo-5-pyrrolidin-1-ylsulfonylpyridin-1-yl)acetamide1251710-76-5C18H21N3O5S
- N-(2-Methoxyphenyl)-2-(2-oxo-5-pyrrolidin-1-ylsulfonylpyridin-1-yl)acetamide1251690-18-2C18H21N3O5S
- (E)-N-(3-(2-Ethoxyethyl)-4,7-dimethoxybenzo[d]thiazol-2(3H)-ylidene)-3-methylisoxazole-5-carboxamide946205-90-9C18H21N3O5S
- (E)-N-(3-(2-Ethoxyethyl)-5,6-dimethoxybenzo[d]thiazol-2(3H)-ylidene)-3-methylisoxazole-5-carboxamide946256-93-5C18H21N3O5S
- N1-(furan-2-ylmethyl)-N2-((1-(phenylsulfonyl)pyrrolidin-2-yl)methyl)oxalamide896268-95-4C18H21N3O5S
- 1-(3,4-Dimethoxyphenyl)-3-(4-(1,1-dioxidoisothiazolidin-2-yl)phenyl)urea1202985-23-6C18H21N3O5S
- 1-(3,5-Dimethoxyphenyl)-3-(3-(1,1-dioxidoisothiazolidin-2-yl)phenyl)urea1203023-56-6C18H21N3O5S
- 1-(2,3-Dimethoxyphenyl)-3-(3-(1,1-dioxidoisothiazolidin-2-yl)phenyl)urea1203156-07-3C18H21N3O5S
- 1-[4-(Dimethylsulfamoyl)phenyl]-N-(furan-2-ylmethyl)-5-oxopyrrolidine-3-carboxamide1190287-33-2C18H21N3O5S
- N-(2-Methoxyphenyl)-2-(2-oxo-3-(pyrrolidin-1-ylsulfonyl)pyridin-1(2H)-yl)acetamide1251593-91-5C18H21N3O5S
- N-Methyl-2-(3-(morpholinosulfonyl)-2-oxopyridin-1(2H)-yl)-N-phenylacetamide1251705-25-5C18H21N3O5S
- Ethyl (5-(2-(3-methoxyphenoxy)acetyl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carbamate1351634-50-8C18H21N3O5S
- 2-(2-(4-((4-Methoxyphenyl)sulfonyl)piperidin-1-yl)-2-oxoethyl)pyridazin-3(2H)-one1448065-29-9C18H21N3O5S
- 4-[5-(1-Methyl-5-oxo-pyrrolidin-2-yl)-pyridin-2-ylsulfanyl]-butyric acid 2,5-dioxo-pyrrolidin-1-yl ester1951441-11-4C18H21N3O5S
- N-(3-(Methylsulfonamido)phenyl)-6-((tetrahydrofuran-2-yl)methoxy)nicotinamide2034300-20-2C18H21N3O5S
- 2-((1-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)sulfonyl)pyrrolidin-3-yl)oxy)-4,6-dimethylpyrimidine2034499-81-3C18H21N3O5S
- 1-(3-Methoxybenzyl)-4-[(2-nitrophenyl)sulfonyl]piperazine428827-86-5C18H21N3O5S
- 1-(2-Methoxybenzyl)-4-[(2-nitrophenyl)sulfonyl]piperazine428839-08-1C18H21N3O5S
- Methyl 4-{[N-(dimethylsulfamoyl)-N-phenylglycyl]amino}benzoate826998-37-2C18H21N3O5S
- Ethyl 4-[2-(4-ethoxyanilino)-2-oxoethyl]sulfanyl-6-methyl-2-oxo-1H-pyrimidine-5-carboxylate899749-40-7C18H21N3O5S
- Ethyl 4-({[(2-ethoxyphenyl)carbamoyl]methyl}sulfanyl)-6-methyl-2-oxo-1,2-dihydropyrimidine-5-carboxylate946252-98-8C18H21N3O5S
- N-(4-Acetylphenyl)-1-[(3,5-dimethyl-1,2-oxazol-4-yl)sulfonyl]prolinamide1025714-89-9C18H21N3O5S
- N-(5,6-Dihydro-4H-cyclopenta[c]isoxazol-3-yl)-1-((4-methoxyphenyl)sulfonyl)pyrrolidine-2-carboxamide1048663-91-7C18H21N3O5S
Frequently asked questions
What is the molar mass of C18H21N3O5S?
The molar mass of C18H21N3O5S is 391.44 g/mol, calculated from standard atomic weights for 18 carbon atoms, 21 hydrogen atoms, 3 nitrogen atoms, 5 oxygen atoms and 1 sulfur atom. The monoisotopic mass is 391.1202 Da.
How many compounds have the formula C18H21N3O5S?
CompoundList lists 154 compounds with the molecular formula C18H21N3O5S, including Rabeprazole sulfone N-oxide, 4-{[4-(4-Methoxyphenyl)-1,3-thiazol-2-yl]amino}-3-(morpholin-4-yl)-4-oxobutanoic acid, N-[4-(tert-Butylsulfamoyl)phenyl]-2-(2-nitrophenyl)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 C18H21N3O5S?
C18H21N3O5S 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.